CN110519666B - Optical module wavelength configuration method and device and optical module - Google Patents
Optical module wavelength configuration method and device and optical module Download PDFInfo
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- CN110519666B CN110519666B CN201910758691.4A CN201910758691A CN110519666B CN 110519666 B CN110519666 B CN 110519666B CN 201910758691 A CN201910758691 A CN 201910758691A CN 110519666 B CN110519666 B CN 110519666B
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- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
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- H—ELECTRICITY
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Abstract
The application provides a wavelength configuration method, a wavelength configuration device and an optical module, and belongs to the field of optical communication. Loading a wavelength configuration instruction into emergent light in a mode of low-frequency modulation signals; receiving returned setting information, wherein the setting information is used for verifying whether the wavelength configuration instruction is accurately implemented; when the returned setting information is not accurate, the wavelength configuration instruction is sent again; the configuration of the light emitting wavelength of the receiving end optical module is indicated by communicating with the receiving end optical module through the low-frequency optical signal, and the configuration of the light emitting wavelength of the receiving end optical module is indicated again when the wavelength of the receiving end optical module is not configured correctly.
Description
Technical Field
The present application relates to the field of optical communication technologies, and in particular, to a method and an apparatus for configuring a wavelength of an optical module, and an optical module.
Background
In the access network communication system, mutual optical connection is established between an optical line terminal and an optical network unit to realize data communication. Specifically, the optical line terminal is provided with a first optical module, the optical network unit is provided with a second optical module, and optical connection is established between the first optical module and the second optical module; the optical line terminal sends an optical signal to the second optical module through the first optical module to realize that the optical line terminal sends data to the optical network unit; the optical line terminal receives the optical signal from the second optical module through the first optical module, so that the optical line terminal receives the data from the optical network unit.
In the above communication system, the optical line terminal and the optical network unit are upper computers of the optical module. The upper computer inputs the data electrical signal into the optical module, and the optical module converts the data electrical signal into an optical signal to be sent out so as to realize the data sending of the upper computer; the optical module converts an optical signal from the outside into a data electric signal, and the data electric signal is input into the upper computer to realize the data receiving of the upper computer.
Since the optical module is only a data transmitter in the upper computer and the optical module can only be controlled by the upper computer, the optical module needs to be controlled indirectly by the upper computer manually. In the physical network of the access network, the optical line terminal and/or the optical network unit are often located in an environment inconvenient for manual operation, such as a mountain, a forest, or even a water body, and it becomes very difficult to operate the upper computer or use the upper computer to operate the optical module in the environments.
Disclosure of Invention
The application provides an optical module wavelength configuration method and device and an optical module, so that the optical module can realize remote wavelength configuration control.
According to a first aspect of the embodiments of the present application, a method for configuring a wavelength is provided, which mainly includes: loading a wavelength configuration instruction into emergent light in a mode of low-frequency modulation signals; receiving returned setting information, wherein the setting information is used for verifying whether the wavelength configuration instruction is accurately implemented; and when the returned setting information is not accurate, the wavelength configuration instruction is sent again.
According to a second aspect of embodiments of the present application, there is provided a wavelength configuration apparatus, the apparatus mainly comprising a processor and a memory, wherein:
a memory for storing program code;
a processor configured to read the program code stored in the memory and execute the method of the first aspect of the embodiments of the present application.
According to a third aspect of embodiments of the present application, there is provided an optical module mainly including an optical transmitting component, an optical receiving component, a printed circuit board, and an MCU provided on the printed circuit board, wherein:
the MCU is provided with a data transmitting device of the second aspect of the embodiment of the application;
the light transmitting assembly is connected with the MCU through the printed circuit board, the MCU can control the light transmitting assembly to transmit light loaded with the low-frequency modulation signal, and the light receiving assembly is used for receiving returned setting information.
As can be seen from the above embodiments, the wavelength configuration instruction is loaded into the outgoing light in the form of a low-frequency modulation signal; receiving returned setting information, wherein the setting information is used for verifying whether the wavelength configuration instruction is accurately implemented; when the returned setting information is not accurate, the wavelength configuration instruction is sent again; the configuration of the light emitting wavelength of the receiving end optical module is indicated by communicating with the receiving end optical module through the low-frequency optical signal, and the configuration of the light emitting wavelength of the receiving end optical module is indicated again when the wavelength of the receiving end optical module is not configured correctly.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any inventive exercise.
Fig. 1 is a schematic diagram of a basic structure of an upper computer of an optical module provided in an embodiment of the present application;
fig. 2 is a schematic partial structure diagram in an upper computer according to an embodiment of the present application;
fig. 3 is a cross-sectional view of an optical module and an optical module interface connection structure provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electrical connector in an optical module interface according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of an optical module golden finger structure according to an embodiment of the present application;
FIG. 6 is a schematic diagram of an optical communication network built using arrayed waveguide gratings;
FIG. 7 is a schematic diagram of an optical module according to an embodiment of the present disclosure;
fig. 8 is an exploded structural diagram of an optical module according to an embodiment of the present application;
fig. 9 is a schematic basic flowchart of a wavelength configuration method according to this embodiment;
fig. 10 is a schematic basic flow chart of another wavelength configuration method provided in this embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Aiming at the problem that the optical module is inconvenient to operate because the optical module can only be controlled by an upper computer at present, namely, the optical module needs to be controlled by the upper computer manually and indirectly, a new communication mode can be adopted, so that the optical module is controlled by the upper computer which is accessed to the optical module, remote control can be realized, and further, the remote control of the upper computer can be realized through the remote control of the optical module.
Optical modules are used in the field of optical fiber communication technology to implement a photoelectric conversion function, wherein the interconversion between optical signals and electrical signals is the core function of the optical module. Fig. 1 is a schematic diagram of a basic structure of an upper computer of an optical module according to an embodiment of the present application. Fig. 2 is a schematic view of a partial structure in an upper computer according to an embodiment of the present application. As shown in fig. 1 and 2, the upper computer includes an upper cover 10, a lower cover 20, a circuit board 40 and an optical module 30, the upper cover 10 and the lower cover 20 form a cavity for wrapping the circuit board 40 and the optical module 30, and the circuit board 40 has an optical module interface 401 and a cable interface 402.
The optical module interface 401 is used for accessing the optical module 30, and an electrical connector 4011 is arranged in the optical module interface 401 and used for accessing optical module electrical ports such as golden fingers and the like, so that a bidirectional electrical signal connection is established with the optical module 30; the network cable interface 402 is used for accessing a network cable and establishing bidirectional electrical signal connection with the network cable; the optical module 30 is connected to the network cable through an upper computer, specifically, the upper computer transmits a signal from the optical module 30 to the network cable, transmits the signal from the network cable to the optical module 30, and monitors the operation of the optical module 30.
An optical port of the optical module 30 is connected with an optical fiber, and establishes bidirectional optical signal connection with the optical fiber; the electrical port of the optical module 30 is accessed into the upper computer and establishes bidirectional electrical signal connection with the optical network unit; the optical module 30 realizes the interconversion between an optical signal and an electrical signal, thereby realizing the establishment of connection between an optical fiber and an upper computer; specifically, the optical signal from the optical fiber is converted into an electrical signal by the optical module 30 and then input into the upper computer, and the electrical signal from the upper computer is converted into an optical signal by the optical module 30 and input into the optical fiber.
Fig. 3 is a cross-sectional view of a connection structure between an optical module and an optical module interface according to an embodiment of the present disclosure, fig. 4 is a schematic structural view of an electrical connector in an optical module interface according to an embodiment of the present disclosure, and fig. 5 is a schematic structural view of an optical module golden finger according to an embodiment of the present disclosure. As shown in fig. 3, 4, and 5, the end of the circuit board 301 of the optical module is inserted into the optical module interface 401 of the upper computer, so as to electrically connect the optical module and the upper computer. Specifically, the optical module interface 401 has an electrical connector 4011, the electrical connector 4011 has a gap for accommodating the optical module circuit board 40 and an elastic sheet 4012 press-fitted on the surface of the optical module circuit board 40, the surface of the end of the optical module circuit board 301 has a metal pin-shaped gold finger 3011, and the elastic sheet in the electrical connector 4011 is in contact with the gold finger to realize electrical conduction.
In an optical fiber communication network established by using an Arrayed Waveguide Grating (AWG), the embodiment of the application provides a scheme for configuring the wavelength of an optical module.
The arrayed waveguide grating is based on the basic optical principle of linear interference between lights with different wavelengths and has the characteristic of light combination and splitting according to different wavelengths. The optical modules of a certain interface on the left side and the optical modules of a corresponding interface on the right side establish mutual communication by adopting specific wavelengths, and generally, a plurality of optical modules with tunable emission wavelengths are adopted to establish an arrayed waveguide grating optical fiber communication network, so that the optical modules are required to be configured with the specified wavelengths.
Fig. 6 is a schematic structural diagram of AN optical communication network established by using AN arrayed waveguide grating, and as shown in fig. 6, in AN optical fiber communication network established between AN AWG1 and AN AWG2, N optical modules from a1 to AN are hooked on one side of AN AWG1, and N optical modules from B1 to BN are hooked on a corresponding side of AN AWG 2. The optical signal transmitted by the optical module a1 is received by the optical module B1 via the AWG optical fiber communication network, and correspondingly, the optical signal transmitted by the optical module B1 is received by the optical module a1 via the AWG optical fiber communication network. The optical path between optical module a1 and optical module B1 is established after wavelength configuration. Specifically, in the process of establishing an optical path between the optical module a1 and the optical module B1, the optical module a1 emits light first, the light emitted by the optical module a1 is received by the optical module B1 after passing through the AWG optical fiber communication network, but the optical module B1 does not know what wavelength of light is emitted and is received by the optical module a1, and at this time, an explicit indication needs to be given by the optical module a1, that is, information indicating the light emission wavelength of the optical module B1 is carried in the light transmitted by the optical module a1 to the optical module B1, and what wavelength of light emitted by the optical module B1 is specified by the optical module a 1.
Fig. 7 is a schematic diagram of an optical module according to an embodiment of the present disclosure. Fig. 8 is an exploded structural schematic diagram of an optical module according to an embodiment of the present application. As shown in fig. 7 and 8, the optical module 200 provided in the embodiment of the present application includes a circuit board 301, an upper housing 302, a lower housing 303, an optical transceiver 304 (including an optical transmitter module and an optical receiver module), and an unlocking handle 307.
The upper shell 302 and the lower shell 303 form a wrapping cavity with two openings, specifically, two ends (305, 306) in the same direction are opened, or two openings in different directions are opened; one of the openings is an electrical port 305 for inserting into an upper computer such as an optical network unit, the other opening is an optical port 306 for connecting an external optical fiber to an internal optical fiber, and the photoelectric devices such as the circuit board 301 and the optical transceiver 304 are positioned in the packaging cavity.
The upper housing 302 and the lower housing 303 are generally made of metal materials, which is beneficial to electromagnetic shielding and heat dissipation. The unlocking handle 303 is positioned on the outer wall of the wrapping cavity/lower shell 303, and the tail end of the unlocking handle 307 is pulled to enable the unlocking handle 307 to move relatively on the surface of the outer wall; when the optical module is inserted into the host computer, the optical module is fixed in the optical module interface 401 of the host computer by the unlocking handle 307, and the clamping relation between the optical module and the host computer is released by pulling the unlocking handle 307, so that the optical module can be extracted from the optical module interface 401 of the host computer.
The gold finger 3011 on the surface of the optical module circuit board 301 has I2C pins, and information can be transmitted between the upper computer and the optical module through I2C pins by using I2C protocol. The upper computer can write information into the optical module, and particularly, the upper computer can write the information into a register of the optical module; the optical module cannot write information into the upper computer, and when the optical module needs to provide information to the upper computer, the optical module writes the information into a preset register (such as a transmission status register, a data transmission failure register, and the like set in this embodiment) in the optical module, and the upper computer reads the register, and the register of the optical module is generally integrated in a Microprocessor (MCU) 3012 of the optical module, or can be independently set on a circuit board 301 of the optical module.
Further, in the working process of the optical module, the optical module is configured to send a relatively high-frequency data optical signal according to a data electrical signal from the optical line terminal to maintain an original external data transmission service of the optical line terminal, and at the same time, the optical module also sends a relatively low-frequency control optical signal according to a non-data electrical signal (i.e., a signal not used for a normal transmission service) to send control information to the optical module at the opposite end, so that the control data is transmitted to the remote system without interrupting the normal service, for example, an upgrade packet of the remote system is transmitted through a low-frequency message channel to implement online upgrade of the remote system, and DDM (Digital Diagnostic Monitoring) information is reported.
Since the optical module and the optical module at the opposite end are both externally connected by one optical fiber, the data optical signal and the control optical signal are mixed in the same light beam to be transmitted by the same optical fiber, and in order to distinguish different signals, the data optical signal and the control optical signal are set to have different frequencies in the embodiment. In its implementation, the microprocessor 3012 may control the optical transceiver 304 by designing the microprocessor 3012 and the optical transceiver 304 in the optical module, and a low-frequency modulation signal (control optical signal) is superimposed on a high-frequency signal (data optical signal) sent by the microprocessor 3012, and this embodiment is referred to as a low-frequency message channel. For example, a low frequency modulation signal of 50Kbps is superimposed on a 10Gbps or 25Gbps signal, wherein the 10Gbps or 25Gbps signal is a normal traffic signal, and another low frequency signal of 50Kbps is added to perform other manipulation functions.
The wavelength configuration information is sent to the optical module at the receiving end through the low-frequency modulation signal, and the optical module at the receiving end performs wavelength configuration according to the wavelength configuration information.
Fig. 9 is a basic flowchart of a wavelength configuration method provided in this embodiment, and fig. 10 is a basic flowchart of a wavelength configuration method provided in this embodiment. As shown in fig. 9 and 10, in this method, the transmitting-side optical module configures the wavelength of the receiving-side optical module, and as a result, the receiving-side optical module configures its own emission wavelength. The method specifically comprises the following steps:
s200: wavelength configuration instructions are loaded into the outgoing light in the form of low frequency modulation signals.
And the optical module at the transmitting end transmits the wavelength configuration instruction to the optical module at the receiving end by taking the low-frequency optical signal as a carrier.
The wavelength configuration instruction can be from an upper computer of the sending end, and the upper computer of the sending end writes the wavelength configuration information into a register of the sending end optical module through an I2C channel and reads the wavelength configuration information from the register; the wavelength configuration instruction can also come from a sending end optical module and is generated or inquired by a microprocessor MCU of the sending end optical module; the wavelength configuration command is output in the form of a low-frequency modulation signal by a microprocessor of the transmitting-end optical module.
The content of the wavelength configuration instruction can be a preset wavelength channel number or a specific wavelength numerical value; the preset wavelength channel number is a code number of a wavelength value and can indicate the transmitting wavelength of the transmitting end optical module and/or the transmitting wavelength of the receiving end optical module.
Normal service data of the optical module is loaded into emergent light in a high-frequency modulation signal mode through a driving chip of a laser chip; the wavelength configuration information is loaded into emergent light in a low-frequency modulation signal mode through a microprocessor of the optical module; the emergent light of the optical module at the transmitting end is received by the optical module at the receiving end. The optical signal transmitted from the transmitting-end optical module is generated by modulating two signals, namely a high-frequency modulation signal and a low-frequency modulation signal, and has two components of high frequency and low frequency.
The method for loading the low-frequency modulation signal into the emergent light has various specific hardware implementation modes, for example, the low-frequency modulation signal (presented in a current form) and the original high-frequency modulation signal (presented in a current form) are mixed and then input into the laser chip; or in a hardware environment using the electro-absorption modulator, the reference voltage of the electro-absorption modulator is controlled by the MCU to load the low-frequency modulation signal into the light; generally, the low frequency modulation signal is generated by a microprocessor of the optical module, and is converted into an optical signal by a laser chip of the optical module to be emitted.
S300: and waiting for receiving the returned setting information.
And after the wavelength configuration instruction is sent out by the optical module at the sending end, the response of the optical module at the receiving end is waited. The light is transmitted to the receiving end optical module, the receiving end optical module configures the wavelength of the emitted light according to the wavelength configuration instruction, and a certain time is needed for generating a response message after the wavelength configuration is completed, so that the transmitting end optical module needs to wait for the response of the receiving end optical module.
In the waiting process, the receiving optical power of the optical module at the sending end can be checked, when the receiving optical power does not exceed the threshold value, the receiving end is determined not to be configured with the transmitting wavelength of the optical module at the receiving end, at the moment, the link alarm flag bit is modified into a third preset value, and then the step S200 is skipped to send the wavelength configuration instruction again.
The process of waiting for a response is timed. The timing may be started after the transmission of the wavelength allocation command is completed, or may be started simultaneously with step S200. One purpose of timing is to perform a cyclic retransmission of the wavelength configuration information after a preset waiting time range; another purpose of the timing is to stop the cycling of the wavelength configuration method in case of a severe timeout.
During the waiting process, the setting information returned from the receiving end may or may not be received. When the optical fiber communication network and the optical module both work normally, the setting information returned by the receiving end is generally received within a preset waiting time range; when the optical fiber communication network or the optical module does not work normally, the setting information returned by the receiving end cannot be received, and a serious overtime condition is generated at the moment.
S400: and judging whether the returned setting information is accurate.
The setting information returned by the receiving end to the transmitting end optical module is specific check information, which is the response of the receiving end optical module to the wavelength configuration instruction of the transmitting end optical module and is used for the transmitting end optical module to judge whether the receiving end optical module accurately performs wavelength configuration; the returned setting information is generally sent out after the receiving end optical module completes wavelength configuration, and can also be sent out after a wavelength configuration instruction of a sending end is received and before the wavelength configuration is completed; the setting of the verification information may be determined according to specific requirements, and the returned setting information may be preset information, and may also be wavelength data information and the like set by the receiving-end optical module.
S401: and when the returned setting information is accurate, modifying the link alarm zone bit into a fourth preset value and modifying the wavelength communication zone bit into a second preset value.
The optical module at the sending end checks the setting information returned by the optical module at the receiving end, when the returned setting information is accurate, the optical module at the receiving end does not need to send a wavelength configuration instruction to the optical module at the receiving end again, the optical module can modify the link alarm flag bit into a fourth preset value and modify the wavelength communication flag bit into a second preset value when the operation of the wavelength configuration method is to be finished.
The link alarm flag bit can be modified, then the information returned by the receiving end is cleared, and then the wavelength communication flag bit is modified. The link alarm flag bit is used for triggering the optical module to send a wavelength configuration instruction again, and is used for controlling the interior of the optical module; the wavelength communication flag bit is used for informing whether the upper computer link is smooth or not, and is an external notification of the optical module; and after the internal processing of the optical module is finished, sending a notice to the outside of the optical module.
The optical signal received by the optical module at the transmitting end may not come from the corresponding optical module at the receiving end, so that the judgment basis according to whether the optical signal is received is not very accurate.
Specifically, the wavelength allocation method is a method for cyclic operation, and starts at step S200. When the wavelength configuration is accurately completed, the wavelength configuration method stops running; when the wavelength configuration is incorrect or after a preset waiting time range, the wavelength configuration method needs to be run again. The wavelength configuration method can be presented in a section of software code mode, a microprocessor of a sending end optical module circularly runs the section of code, and when the wavelength configuration is accurately completed, the operation of the section of code is skipped; when the wavelength configuration is incorrect or after a preset waiting time range, the code is repeatedly run.
S402: and when the returned setting information is not accurate, the wavelength configuration instruction is sent again.
The sending-end optical module receives the setting information returned by the receiving-end optical module within a preset waiting time range, the sending-end optical module checks the setting information returned by the receiving-end optical module, when the returned setting information is not accurate, the sending-end optical module needs to send a wavelength configuration instruction to the receiving-end optical module again, the next round of operation of the wavelength configuration method is started, step S200 is executed, and at the moment, the optical module can modify the link alarm flag bit into a third preset value so as to trigger the execution of step S200.
S500: after the preset waiting time range, if the returned setting information is not received, the wavelength configuration instruction is sent again.
The sending-end optical module does not wait for the response of the receiving-end optical module endlessly, but preset a certain waiting time, and when the waiting time exceeds the preset waiting time range, the operation of the wavelength configuration method is repeated, the wavelength configuration instruction is sent to the receiving-end optical module again, the operation of the next round of wavelength configuration method is started, namely, the step S200 and the subsequent steps are executed again.
S600: and within the preset time period range, if the accurate return setting information is not received, ending the operation of the wavelength configuration method and generating an error identifier.
The method comprises the following steps that accurate returned setting information is not received, and the first condition is that the returned setting information is not received all the time; the second is that the backhaul setup information is received all in error. In both the first case and the second case, the wavelength allocation method is executed from the step s200, and when the accumulated time of the multiple executions reaches the preset time period range, the wavelength allocation method is ended, and an error identifier is generated.
And recording the cycle times when the wavelength configuration instruction is sent again, wherein the cycle times exceeding the preset cycle times are embodied by the fact that the accumulated time of multiple executions reaches the preset time period range.
The error identification is stored in a register of the optical module and is read by an upper computer of the receiving end optical module.
The above embodiment realizes that the configuration of the light emitting wavelength of the receiving end optical module is indicated by communicating with the receiving end optical module through the low-frequency optical signal, and the configuration of the light emitting wavelength of the receiving end optical module is indicated again when the wavelength of the receiving end optical module is not configured correctly.
There are various triggers for starting the wavelength allocation method, and there are various triggering steps before step S200.
One triggering factor is that the optical module at the transmitting end adopts a new emission wavelength. The specific scene can be that the optical module at the sending end is just accessed into the array waveguide grating network, and can also be that the upper computer at the sending end indicates the optical module at the sending end to change the emission wavelength. At this time, the transmitting-end optical module executes the self-transmitting wavelength configuration and the corresponding receiving-end wavelength configuration.
Specifically, S101: when the wavelength communication flag bit is modified into a first preset value, the transmitting end optical module performs configuration of transmitting wavelength according to configuration information;
the upper computer modifies the wavelength communication flag bit of the optical module into a first preset value, and after the transmitting end optical module finishes transmitting wavelength configuration, the upper computer enters a wavelength configuration method for the receiving end optical module and executes a series of steps such as S200 and S300.
Another trigger factor is that the optical signal power received by the optical module at the transmitting end is abnormal. The specific scenario may be that an optical fiber communication link fails, or an optical module at a receiving end is replaced, which may cause that an optical module at a transmitting end cannot receive an optical signal or that the power of the received optical signal is low. At this time, the transmitting-end optical module executes the wavelength allocation method.
Specifically, S102: when the receiving optical power of the optical module at the sending end is lower than a set threshold value; entering a wavelength configuration method, and executing a series of steps of S200, S300 and the like.
Due to fluctuation of the received optical power, the situation that the received optical power of the optical module at the sending end is lower than the preset threshold value can happen occasionally, in order to avoid misjudgment, the received optical power lower than the set threshold value can be counted, when the number of times exceeds the abnormal number threshold value, the received optical power of the optical module at the sending end is considered to be lower than the preset threshold value, the optical module is not accidental but fails, at the moment, a wavelength configuration method is started, and a series of steps such as S200 and S300 are executed.
Based on the same inventive concept as the above method, the present embodiment further provides an optical module wavelength configuration apparatus, which mainly includes a processor and a memory, wherein: the memory is used for storing program codes; a processor for reading the program code stored in the memory and executing: completing the configuration of the emission wavelength according to the configuration information; loading a wavelength configuration instruction into emergent light in a mode of low-frequency modulation signals; receiving returned setting information, wherein the setting information is used for verifying whether the wavelength configuration instruction is accurately implemented; when the returned setting information is not accurate, the wavelength configuration instruction is sent again; after the preset waiting time range, if the returned setting information is not received, the wavelength configuration instruction is sent again; and within a preset time period range, if the accurate feedback setting information is not received, ending the operation of the wavelength configuration method, generating an error identifier, and reading the error identifier by an upper computer.
Alternatively, the processor may perform: judging whether the received light power is lower than a set threshold value or not, and loading a wavelength configuration instruction into emergent light in a low-frequency modulation signal mode when the received light power is lower than the set threshold value; receiving returned setting information, wherein the setting information is used for verifying whether the wavelength configuration instruction is accurately implemented; when the returned setting information is not accurate, the wavelength configuration instruction is sent again; after the preset waiting time range, if the returned setting information is not received, the wavelength configuration instruction is sent again; and within a preset time period range, if the accurate feedback setting information is not received, ending the operation of the wavelength configuration method, generating an error identifier, and reading the error identifier by an upper computer.
The present embodiment further provides an optical module, a specific structure of which may refer to the structures in fig. 7 and fig. 8 and corresponding text descriptions, and meanwhile, the MCU of the optical module is provided with the wavelength configuration device provided in the foregoing embodiment.
It should be noted that the transmitting-end optical module, the receiving-end optical module, and the host computer corresponding thereto, which are improved in the present embodiment, are proposed only from the perspective of enabling data transmission, and in actual use, one optical module may be used as both the transmitting-end optical module and the receiving-end optical module. In addition, the specific representation modes of the first preset value and the second preset value of different flag bits can be the same or different.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (7)
1. A method for configuring wavelength of an optical module is characterized by comprising the following steps:
when the wavelength communication flag bit is modified into a first preset value, the transmitting end optical module performs configuration of transmitting wavelength according to configuration information;
loading a wavelength configuration instruction into emergent light in a low-frequency modulation signal mode, wherein the wavelength configuration instruction indicates the emission wavelength of a transmitting end optical module and/or the emission wavelength of a receiving end optical module, and the emergent light is the superposition of a high-frequency optical signal and a low-frequency optical signal;
receiving returned setting information, wherein the setting information is used for verifying whether the wavelength configuration instruction is accurately implemented; and when the returned setting information is not accurate, the wavelength configuration instruction is sent again.
2. The method for configuring wavelength of optical module according to claim 1, further comprising: and after the preset waiting time range, if the returned setting information is not received, the wavelength configuration instruction is sent again.
3. The method for configuring wavelength of optical module according to claim 1, further comprising: and within a preset time period range, if the accurate feedback setting information is not received, ending the operation of the wavelength configuration method, and generating an error identifier, wherein the error identifier is read by an upper computer.
4. A method for wavelength allocation of optical modules according to any of claims 1 to 3, wherein before loading the wavelength allocation command into the outgoing light as a low frequency modulation signal, the method further comprises: when the wavelength communication zone bit is modified into a first preset value, completing the configuration of the emission wavelength according to the configuration information; and after judging that the returned setting information is accurate, modifying the wavelength communication zone bit into a second preset value.
5. A method for wavelength allocation of optical modules according to any of claims 1 to 3, wherein before loading the wavelength allocation command into the outgoing light as a low frequency modulation signal, the method further comprises: and judging whether the received light power is lower than a set threshold value or not, and loading a wavelength configuration instruction into emergent light in a low-frequency modulation signal mode when the received light power is lower than the set threshold value.
6. An optical module wavelength configuration apparatus, characterized in that the apparatus comprises a processor and a memory, wherein: the memory for storing program code; the processor for reading the program code stored in the memory and executing the method of any of claims 1 to 5.
7. An optical module comprising an optical transmitting assembly, a receiving assembly, a printed circuit board, and an MCU disposed on the printed circuit board, wherein: the MCU is provided with the optical module wavelength configuration device of claim 6; the light transmitting assembly is connected with the MCU through the printed circuit board, and the MCU can control the light transmitting assembly to transmit light loaded with low-frequency modulation signals; the receiving component is used for receiving the returned setting information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910758691.4A CN110519666B (en) | 2019-08-16 | 2019-08-16 | Optical module wavelength configuration method and device and optical module |
| PCT/CN2020/093199 WO2021031652A1 (en) | 2019-08-16 | 2020-05-29 | Optical module wavelength configuration method and device, and optical module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910758691.4A CN110519666B (en) | 2019-08-16 | 2019-08-16 | Optical module wavelength configuration method and device and optical module |
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| CN110519666A CN110519666A (en) | 2019-11-29 |
| CN110519666B true CN110519666B (en) | 2022-04-01 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519666B (en) * | 2019-08-16 | 2022-04-01 | 青岛海信宽带多媒体技术有限公司 | Optical module wavelength configuration method and device and optical module |
| CN113364523B (en) * | 2020-03-06 | 2022-06-28 | 青岛海信宽带多媒体技术有限公司 | Data sending method and optical module |
| CN113824498B (en) * | 2020-06-19 | 2023-04-25 | 青岛海信宽带多媒体技术有限公司 | Rate mode switching method of optical module and optical module |
| CN115133998B (en) * | 2021-03-24 | 2024-01-23 | 青岛海信宽带多媒体技术有限公司 | Optical module and wavelength self-adaption method based on message channel |
| CN113189718A (en) * | 2021-03-24 | 2021-07-30 | 青岛海信宽带多媒体技术有限公司 | Optical module and wavelength configuration method thereof |
| CN113098621B (en) * | 2021-03-31 | 2022-07-08 | 青岛海信宽带多媒体技术有限公司 | Optical module and wavelength automatic polling method based on double-MCU optical module |
| CN113098596B (en) * | 2021-03-31 | 2023-07-18 | 青岛海信宽带多媒体技术有限公司 | Optical module and method for obtaining remote monitoring data based on dual MCU optical module |
| CN113098613B (en) * | 2021-03-31 | 2022-09-09 | 青岛海信宽带多媒体技术有限公司 | Optical module and wavelength automatic communication method based on double-MCU optical module |
| CN114866140B (en) * | 2022-06-17 | 2025-05-27 | 苏州熹联光芯微电子科技有限公司 | Optical module, electronic device and control method of optical module |
| CN117240363B (en) * | 2023-11-14 | 2024-01-30 | 湖南省康普通信技术有限责任公司 | Signal transmission method based on optical module and optical module transmission system |
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| CN110519666A (en) | 2019-11-29 |
| WO2021031652A1 (en) | 2021-02-25 |
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