CN111880268A - Laser assembly, optical module and optical fiber communication equipment - Google Patents

Abstract

The invention discloses a laser assembly, an optical module and an optical fiber communication device. The laser assembly includes: a base; a laser module arranged on the base; a tube cap, the tube cap sealing cover is arranged on the base and accommodates the laser module in it; the tube cap has a first side wall facing the base, the first The side wall is arranged as a flat plate; and the lens is arranged on the outer surface of the first side wall, and is used for changing the angle of the light entering the laser module or the light emitted by the laser module. The laser assembly of the present invention can be applied to an industrial-grade working environment.

Description

Laser components, optical modules and optical fiber communication equipment

technical field

The invention relates to the field of optical fiber communication, in particular to a laser assembly, an optical module and an optical fiber communication device.

Background technique

At present, with the diversification of 5G application scenarios, the use of multi-mode optical fiber transmission on industrial switches and base stations has gradually increased, requiring optical modules that can be deployed in harsh environments such as outdoor base stations and industrial switches.

Traditional optical modules are mostly used in data centers. Since the data center has a temperature control system and a stable working environment, the laser components in traditional optical modules use COB (Chip on board) non-airtight packaging. However, COB-packaged laser components are easily affected by environmental factors such as dust, water vapor, and unstable propagation media, so they cannot be used in industrial-grade working environments, and traditional optical modules have poor heat dissipation performance and cannot meet industrial-grade temperature requirements. The module only supports short transmission at a specific rate and distance, and cannot be used in various scenarios.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to propose a laser assembly, which is intended to be applied to an industrial-grade working environment.

To achieve the above objective, the present invention provides a laser assembly. The laser assembly includes:

base;

a laser module, arranged on the base;

a tube cap, the tube cap sealing cover is arranged on the base and accommodates the laser module therein;

The pipe cap has a first side wall facing the base, and the first side wall is arranged as a flat plate; and

and a lens, which is arranged on the outer surface of the first side wall and is used to change the angle of the light entering the laser module or the light emitted by the laser module.

Optionally, the laser assembly further includes:

A pin assembly, one end of the pin assembly is connected to the laser module, and the other end of the pin assembly is disposed away from the cap and protruding from the base.

Optionally, the laser module includes:

a conductive sheet, disposed on the base, and connected with the pin assembly; and

A laser is arranged on the conductive sheet.

Optionally, the laser module further includes:

The light detector is arranged on the base and connected with the pin assembly.

Optionally, the laser is a laser transmitter or a laser receiver.

The present invention also provides an optical module, the optical module includes:

electrical interface;

A laser assembly, which is the laser assembly described above, the laser assembly is electrically connected to the electrical interface; and

The main control device is electrically connected with the laser assembly.

Optionally, the number of the laser components is two, one is a laser emitting component, and the other is a laser receiving component;

The laser emitting component is used to convert the electrical signal connected to the electrical interface into an optical signal and then output it;

The laser receiving component is used for receiving an optical signal, and is used for converting the received optical signal into an electrical signal and outputting it to the electrical interface;

The optical module further includes:

a laser driver, which is respectively electrically connected to the electrical interface, the main control device and the laser emitting component; the laser driver is used for, under the control of the main controller, according to the electrical signal connected to the electrical interface driving the laser emitting assembly to work; and

Limiting amplifier, the limiting amplifier is respectively electrically connected with the main control device, the electrical interface and the laser receiving component; the limiting amplifier is used for, under the control of the main control device, the The electrical signal output by the laser receiving component is output to the electrical interface after being limited and amplified.

Optionally, the optical module further includes:

a first casing and a first heat sink, the laser emitting component, the laser driver and the first heat sink are accommodated in the first casing; the first heat sink and the first casing The inner surface side of the first heat dissipation table is attached and arranged on the side of the first heat sink away from the first casing. The laser emitting assembly and the laser driver are respectively provided with high-conductivity heat sinks, and the laser emitting assembly, The laser drivers are attached to their corresponding high-conductivity heat sinks, so as to transfer heat to the first casing through the high-conductivity heat sinks and the heat sink;

A second casing and a second heat dissipation stage, the laser receiving assembly, the limiting amplifier and the second heat dissipation stage are accommodated in the second shell; the second heat dissipation stage and the second shell The inner surface side of the body is attached and arranged, and the side of the second heat dissipation table facing away from the second shell is provided with a high-conductivity heat sink corresponding to the laser receiving component and the limiting amplifier, respectively. The component, the limiting amplifier and the corresponding high-conductivity heat sink are attached and disposed, so as to transfer heat to the second casing through the high-conductivity heat sink and the heat sink;

an outer casing, the first casing and the second casing are accommodated in the outer casing, the outer casing respectively protrudes a connecting portion corresponding to the first casing and the second casing, and the outer casing The outer surfaces of the first casing and the second casing are fitted with their corresponding connecting parts, so as to transmit heat to the outer casing.

Optionally, the optical module further includes a transmit signal shaping circuit and a receive signal shaping circuit;

The transmission signal shaping circuit is respectively electrically connected with the electrical interface, the laser driver and the main control device; the transmission signal shaping circuit is used to connect the electrical interface under the control of the main control device The incoming electrical signal is shaped to lock the electrical signal in the preset rate range, and the corresponding electrical signal is shaped and output to the laser driver;

The received signal shaping circuit is respectively electrically connected with the limiting amplifier, the electrical interface and the main control device; the received signal shaping circuit is used for limiting the amplitude under the control of the main control device The electric signal output by the amplifier is limited and amplified to be shaped to lock the electric signal in the preset rate range, and the corresponding electric signal is output to the electric interface after being shaped.

The present invention also provides an optical fiber communication device, the optical fiber communication device includes the above-mentioned laser assembly;

Alternatively, the optical fiber communication device includes the above-mentioned optical module.

The laser assembly of the present invention is provided with a base, a laser module, a tube cap and a lens, and the laser module is arranged in a closed cavity formed by the tube cap and the base, so that the laser module can work without being affected by environmental factors such as dust and water vapor. , and the sealed cavity can be filled with inert gas correspondingly to ensure the temperature of the laser propagation medium, and by setting the lens, the laser emitted/received by the laser module can be deflected correspondingly to ensure that the laser assembly of the present invention is industrial-grade. The environment can work normally. Compared with the traditional COB packaged laser assembly, the laser module of the present invention is arranged in a closed cavity formed by the base and the cap, so that the laser module can be prevented from being affected by environmental factors such as dust, water vapor, and unstable propagation medium. , so as to realize the application in industrial-grade working environment.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a laser assembly of the present invention;

FIG. 2 is a schematic diagram of functional modules of an embodiment of an optical module of the present invention.

Description of reference numbers:

label name label name 110 base 220 main control device 120 Laser module 230 Laser launch components 121 Conductive sheet 240 Laser receiver components 122 laser 250 Laser driver 123 photodetector 260 limiting amplifier 130 cap 270 Transmit signal shaping circuit 140 lens 280 Received signal shaping circuit 150 pin assembly 290 power management circuit 210 electrical interface

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In the present invention, unless otherwise expressly specified and limited, the terms "connected", "fixed" and the like should be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two elements or an interaction relationship between the two elements, unless otherwise explicitly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, descriptions such as "first", "second", etc. in the present invention are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present invention.

The present invention provides a laser assembly.

1 to 2, in an embodiment of the present invention, the laser assembly includes:

base 110;

The laser module 120 is arranged on the base 110;

a tube cap 130, the tube cap 130 is sealed on the base 110 and accommodates the laser module 120 therein;

The pipe cap 130 has a first side wall facing the base 110, and the first side wall is arranged in a flat plate; and

The lens 140 is disposed on the outer surface of the first side wall, and is used to change the angle of the light entering the laser module 120 or the light emitted by the laser module 120 .

In this embodiment, the shape of the base 110 may be one of a cylinder, a rectangular parallelepiped or a prism according to actual needs, which is not limited herein. The base 110 may be provided with a channel structure for wiring arrangement, so that the relevant ports or pins of the laser module 120 can be connected to the wirings arranged in the base 110 for accessing corresponding electrical signals or outputting corresponding electrical signals. It is understood that the laser module 120 can emit a corresponding laser according to the received electrical signal, or output a corresponding electrical signal according to the received laser.

The cap 130 can be made of transparent material, and can be realized by adopting a cylindrical cap structure, a rectangular parallelepiped cap structure or a prismatic cap structure. Those skilled in the art can adopt process means such as embedded structure or glue sealing measures at the connection part of the tube cap 130 and the base 110, so that the tube cap 130 is covered on the base 110 to form a closed cavity, thereby isolating the industrial working environment The resulting dust, water vapor and propagation medium affect the laser module 120 ; and the airtight cavity can be filled with high-purity nitrogen or other inert gas according to actual needs, so as to provide a stable and reliable working environment for the laser module 120 . The first side wall of the tube cap 130 is the top side of the cap body structure, and the outer surface of the first side wall is provided with a lens 140. The lens 140 may be a spherical lens or an aspheric lens. The laser is deflected by a corresponding angle, so that subsequent components can receive the laser correctly; or, the lens 140 is also used to deflect the input laser by a corresponding angle and output it to the laser module 120 .

In an optional embodiment, the base 110 is a cylindrical structure, and the tube cap 130 is a cylindrical cap body structure; and there is also a cylindrical convex platform on the base 110 for the tube cap 130 to be nested to form a seal. cavity. The positions of the laser emission port/reception port of the laser module 120 and the center of the base 110 and the center of the lens 140 are on the same line.

The laser assembly of the present invention is provided with the base 110 , the laser module 120 , the cap 130 and the lens 140 , and the laser module 120 is arranged in a closed cavity formed by the cap 130 and the base 110 , so that the laser module 120 can be operated without Influenced by environmental factors such as dust and water vapor, the sealed cavity can be filled with inert gas correspondingly to ensure the temperature of the laser propagation medium, and by setting the lens 140, the laser beam emitted/received by the laser module 120 can be deflected at a corresponding angle , so as to ensure that the laser assembly of the present invention can work normally in an industrial environment. Compared with the conventional COB packaged laser assembly, the laser module 120 of the present invention is arranged in the airtight cavity formed by the base 110 and the cap 130, so that the laser module 120 can be protected from dust, water vapor and unstable propagation medium. and other environmental factors, so as to achieve industrial-grade working environment.

1 to 2, in an embodiment of the present invention, the laser assembly further includes: a pin assembly 150, one end of the pin assembly 150 is connected to the laser module 120, and the pin assembly 150 has a The other end is disposed away from the cap 130 and protrudes from the base 110 .

The laser module 120 includes:

The conductive sheet 121 is disposed on the base 110 and connected to the pin assembly 150; and

The laser 122 is arranged on the conductive sheet 121 .

The laser 122 is a laser transmitter or a laser receiver.

In this implementation, the pin component 150 includes a plurality of independently set pins, and the number of pins is set according to actual needs, which is not limited herein. Each pin goes out of the base 110 and is connected to the relevant device provided on the base 110, so as to realize the electrical connection between the relevant device and the outside; it can be understood that those skilled in the art can design the pin position On the other hand, after passing the relevant pins out of the base 110, they are directly electrically connected to the relevant devices, or electrically connected to the relevant devices that are not in direct contact by means of wire bonding.

In this embodiment, the lasers 122 are classified into two types: laser receivers and laser transmitters. When the laser 122 is a laser transmitter, it can be realized by a vertical cavity surface laser transmitter. Since the laser emitting port of the laser 122 is on the side of the laser 122, a conductive sheet 121 is provided, and the laser 122 is passed through, for example, welding In the manner of laser beam, it is arranged on the conductive sheet 121 to ensure that the laser light emitted from its side can pass through the lens 140; since the structure of the laser receiver is the same as that of the laser transmitter, the design principle is also the same, which will not be repeated here. ; This embodiment is described by taking the laser 122 as a laser transmitter as an example. It can be understood that, in other optional embodiments, the laser 122 can also be implemented by using the FP laser 122 and the DFP laser 122. Since the FP laser 122 and the DFP laser 122 emit light vertically, the laser 122 can be directly disposed on the base 110. , the angle of the laser can be adjusted without setting the conductive sheet 121 . In an optional embodiment, the conductive sheet 121 is in the shape of a rectangular parallelepiped and is vertically arranged on the horizontal base 110; the laser 122 is a vertical cavity surface laser The output laser is perpendicular to the base 110 and passes through the lens 140 . In another optional embodiment, the angle between the conductive sheet 121 and the base 110 and the angle of laser emission can also be any other angle, and angle correction is performed by arranging corresponding optical components in the airtight cavity. This arrangement not only enables the laser 122 to be electrically connected to the outside in the sealed cavity, but also enables the laser 122 to output/receive laser light at a corresponding angle in the sealed cavity, so that the laser assembly can work normally in an industrial environment.

Referring to FIGS. 1 to 2 , in an embodiment of the present invention, the laser module 120 further includes: a photodetector 123 , which is arranged on the base 110 and is connected to the pin assembly 150 .

In this embodiment, the photodetector 123 may be implemented by using a photoelectric light conversion device. The photodetector 123 is used to detect the laser light emitted or received by the laser 122, and can output corresponding electrical signals according to the detected laser light. By setting the photodetector 123, the working parameters of the laser assembly can be acquired in real time, thereby realizing the detection of the laser assembly. real-time monitoring.

The present invention also provides an optical module, the optical module comprising:

electrical interface 210;

A laser assembly, which is the laser assembly described in any one of claims 1-5, the laser assembly is electrically connected to the electrical interface 210; and

The main control device 220 is electrically connected to the laser assembly.

Since the optical module includes the above-mentioned laser assembly; the detailed structure of the laser assembly can refer to the above-mentioned embodiments, which will not be repeated here; it can be understood that since the above-mentioned laser assembly is used in the optical module, the The embodiments include all the technical solutions of all the embodiments of the above-mentioned laser components, and the technical effects achieved are also the same, which will not be repeated here.

In this embodiment, the electrical interface 210 can be implemented by a communication interface such as a golden finger. The electrical interface 210 is used to access electrical signals of various rates such as 622M, 10G, and 25G, and is also used to output the same 622M, 10G, and 25G. Electrical signals at multiple rates.

The main control device 220 can be realized by using microprocessors such as MCU, DSP or FPGA. Those skilled in the art can integrate relevant hardware circuits and software programs or algorithms in the main control device 220, and can use the relevant ports and pins to connect with the main control device 220. Other functional circuits and modules in the optical module are connected. By running the relevant circuits and software programs in the main control device 220, and calling relevant data, various functions of the optical module and processing data can be performed to perform DDM monitoring and real-time monitoring of the optical module. Adjustment. For example, the relevant ports and pins of the main control device 220 can be electrically connected to the light detector 123 to receive the electrical signal output by the light detector 123; and the electrical signal can be analyzed and processed correspondingly by running a software program or algorithm, In order to obtain various parameters of the laser, and by comparing various laser parameters with the corresponding reference parameters, the working state of the laser assembly can be judged in real time. By using the above-mentioned laser components in the optical module of the present invention, the optical module of the present invention can also be applied to an industrial application environment, and the main control device 220 is set for overall monitoring and adjustment, so that the optical module of the present invention can be Better used in industrial environment.

1 to 2, in an embodiment of the present invention, the number of the laser components is two, one is the laser emitting component 230, and the other is the laser receiving component 240;

The laser emitting component 230 is configured to convert the electrical signal connected by the electrical interface 210 into an optical signal and then output it;

The laser receiving component 240 is used for receiving an optical signal, and is used for converting the received optical signal into an electrical signal and outputting it to the electrical interface 210;

The optical module further includes:

The laser driver 250 is electrically connected to the electrical interface 210 , the main control device 220 and the laser emitting component 230 respectively; the laser driver 250 is used for, under the control of the main controller, according to the electrical interface The electrical signal connected to 210 drives the laser emitting assembly 230 to work; and

A limiter amplifier 260, the limiter amplifier 260 is respectively electrically connected with the main control device 220, the electrical interface 210 and the laser receiving component 240; the limiter amplifier 260 is used in the main control device 220 Under the control of the laser receiver 240 , the electrical signal output by the laser receiving component 240 is limited and amplified and then output to the electrical interface 210 .

In this embodiment, when the laser component is the laser emitting component 230 , the laser 122 can be implemented by using one of the above three types of laser transmitters, which will not be repeated here; when the laser component is the laser receiving component 240 , the laser 122 It can be realized by avalanche photodiodes; this embodiment takes the SFP28-SR optical module as an example to illustrate; it can be understood that in other optional optical module types, those skilled in the art can set up multiple optical modules according to actual needs. laser components. The main control device 220 can be used to detect the rate of the electrical signal input to the laser driver 250, and output corresponding control signals to the laser driver 250, so that the corresponding electronic devices in the laser driver 250 work in the corresponding working range, so that the electrical interface can be used according to the electrical interface. 210 Connecting electrical signals at different times drives the laser transmitter to emit optical signals in the form of lasers, so as to realize the conversion of electrical signals to optical signals.

The limiting and amplifying electrical appliance is used to output the electrical signal converted by the laser receiver after limiting and amplifying processing under the control of the main control device 220 . Specifically, the main control device 220 detects the rate of the electrical signal input to the limiter amplifier 260 through the corresponding detection port, and at the same time can adjust the amplification factor and the upper limit level of the limiter amplifier 260 through the corresponding control port, so that the limiter The operating state of the amplifier 260 is matched to the rate of the electrical signal. When the signal amplitude of the electrical signal received by the limiter amplifier 260 is normal, the limiter amplifier 260 works in the linear working area, and the electrical signal is amplified and output accordingly; when the signal amplitude of the electrical signal exceeds the upper limit level, the limiter amplifier 260 260 works in the non-linear working area, and the limiting amplifier 260 outputs an upper limit electrical signal. By arranging the laser receiving component 240 and the laser emitting component 230, the optical module of the present invention has the function of integrating transceivers, and configuring the working states of the laser driver 250 and the limiting amplifier 260 through the main control device 220 can make the optical module in the best working state .

1 to 2, in an embodiment of the present invention, the optical module further includes:

A first casing and a first heat sink, the laser emitting component 230, the laser driver 250 and the first heat sink are accommodated in the first casing; the first heat sink and the first heat sink The inner surface side of the casing is fitted and arranged, and the side of the first heat dissipation table facing away from the first casing is provided with high-conductivity heat sinks corresponding to the laser emitting component 230 and the laser driver 250 respectively. The laser emitting component 230 and the laser driver 250 are attached to their corresponding high-conductivity heat sinks, so as to transfer heat to the first casing through the high-conductivity heat sinks and the heat sink;

The second casing and the second heat dissipation stage, the laser receiving assembly 240, the limiting amplifier 260 and the second heat dissipation stage are accommodated in the second shell; the second heat dissipation stage and the first heat dissipation stage are accommodated in the second shell; The inner surfaces of the two shells are arranged to fit together, and the side of the second heat dissipation table facing away from the second shell is provided with high-conductivity heat sinks corresponding to the laser receiving assembly 240 and the limiting amplifier 260, respectively. The laser receiving assembly 240 and the limiting amplifier 260 are attached to their corresponding high-conductivity heat sinks, so as to transfer heat to the second casing through the high-conductivity heat sinks and the heat sink;

an outer casing, the first casing and the second casing are accommodated in the outer casing, the outer casing respectively protrudes a connecting portion corresponding to the first casing and the second casing, and the outer casing The outer surfaces of the first casing and the second casing are fitted with their corresponding connecting parts, so as to transmit heat to the outer casing.

In this embodiment, the first shell, the second shell and the outer shell can be made of high thermal conductivity materials, and the first heat sink and the second heat sink can be metal heat sinks. Since the laser driver 250 , the laser emitting component 230 , the limiting amplifier 260 and the laser receiving component 240 in the optical module are all devices that generate a large amount of heat and are sensitive to temperature, it is necessary to strengthen the heat dissipation capability of the above devices. The high-conductivity heat sink is used to transfer the heat of the attached device to the heat sink, and then to the first housing or the second housing through the heat sink; in an optional embodiment, the thickness of the high-conductivity heat sink is 1mm , the thickness of the high-conductivity heat sink is determined according to actual needs, which is not limited here. The first casing and the second casing are used to conduct the received heat to the casing through the corresponding connection parts, and finally dissipate from the casing. In other optional embodiments, EMI (Electromagnetic Interference) materials may also be used in the packaging structure of the above-mentioned device to ensure the stability of the EMI characteristics of the above-mentioned device, and the electronic components in the above-mentioned device can be arranged in the printing of high TG value. circuit board to ensure stable electrical performance at high temperatures. By setting high-conductivity heat sinks and heat sinks, as well as the shell structure, the heat dissipation of related devices is enhanced to ensure that each functional circuit in the optical module can work normally at high temperatures.

1 to 2, in an embodiment of the present invention, the optical module further includes a transmit signal shaping circuit 270 and a receive signal shaping circuit 280;

The transmission signal shaping circuit 270 is respectively electrically connected to the electrical interface 210 , the laser driver 250 and the main control device 220 ; the transmission signal shaping circuit 270 is used for, under the control of the main control device 220 , shaping the electrical signal connected to the electrical interface 210 to lock the electrical signal in the preset rate range, and outputting the corresponding electrical signal to the laser driver 250 after shaping;

The received signal shaping circuit 280 is respectively electrically connected to the limiting amplifier 260 , the electrical interface 210 and the main control device 220 ; the received signal shaping circuit 280 is used under the control of the main control device 220 , shaping the electrical signal outputted by the limiting amplifier 260 after limiting and amplifying, so as to lock the electrical signal in the preset rate range, and output the corresponding electrical signal to the electrical interface 210 after shaping.

In this embodiment, both the transmit signal shaping circuit 270 and the receive signal shaping circuit 280 can be implemented by using a CDR clock data recovery circuit. The transmitting signal shaping circuit 270 and the receiving signal shaping circuit 280 can respectively adjust the phase of the electrical signal of the corresponding rate in a data alignment manner according to the reference clock output by the main control device 220, and reduce the jitter and other shaping processes, so as to improve the electrical signal quality. quality and make it meet the transmission requirements of subsequent functional modules. It can be understood that the main control device 220 can control the reference clock output to the control transmit signal shaping circuit 270 and the receive signal shaping circuit 280, so that it only shapes the electrical signals in the corresponding rate interval; and in other rate intervals, The main control device 220 can control the transmission signal shaping circuit 270 and the reception signal shaping circuit 280 to bypass, and the setting of the rate interval is determined according to actual needs, which is not limited here. Of course, in its optional embodiment, the main control device 220 may also output other control signals to realize the rate interval selection.

In an optional embodiment, when detecting that the electrical signal rate is less than 10G, the main control device 220 controls the transmit signal shaping circuit 270 and the receiving signal shaping circuit 280 to bypass; when detecting that the electrical signal rate is in the range of 24G-28G, The main control device 220 outputs the corresponding reference clock to the transmit signal shaping circuit 270 or the receive signal shaping circuit 280 to drive it to work, so that the transmission distance of the 25G signal can be extended to 300M, compared with the 100M transmission distance of the traditional optical module, Undoubtedly, the transmission distance of the 25G signal has been greatly extended.

In another optional embodiment, the electrical interface 210 is provided with rate selection bits RS0 and RS1 for identifying the rate of the input electrical signal and the rate of the output electrical signal respectively, and outputting the identification result to the main control device 220 . The main control device 220 controls the opening and bypass of the transmitting signal shaping circuit 270 and the receiving signal shaping circuit 280, so that the optical module of the present invention can support CPRI, eCPRI, Ethernet, Fibre-Channel and SDH in the range of 622Mbps-28.05Gbps. It can improve the stability of the 25G signal by shaping and adjusting the 25G signal, so that the effective distance of the 25G signal transmission can be increased.

In an optional embodiment, the optical module of the present invention may further have a power management circuit 290, and the power management circuit 290 may be implemented by using a multi-channel DC-DC circuit or a power management integrated circuit. The electrical interface 210 is also used for connecting a DC voltage to provide a power supply voltage for the operation of the optical module. In this optional embodiment, the power supply terminals of the main control device 220 , the transmission signal shaping circuit 270 and the reception signal shaping circuit 280 are respectively connected to the electrical interface 210 , and are directly powered by the DC voltage connected to the electrical interface 210 . The main control device 220 can control the power management circuit 290 to output an appropriate power supply voltage to the corresponding functional circuit according to the monitoring results of other functional circuits, so as to provide an appropriate working voltage for the functional module or components in the circuit, thereby reducing the overall loss of the optical module . In another optional embodiment, the power management circuit 290 also has a power-on slow start function, which is used to control the power-on sequence of each functional circuit in the optical module at the initial stage of power-on to avoid power-on inrush current damage to each circuit. It can be understood that the main control device 220 can also be used to detect the working voltage of each functional circuit in the optical module, and output corresponding control signals to the power management circuit when the working voltage of each functional circuit is detected to be overvoltage or undervoltage. 290 to control the power management circuit 290 to disconnect the power supply of the circuit. In another optional embodiment, the optical module of the present invention has a FEC (Forward Error Correction: Forward Error Correction) function, and with the cooperation of the FEC function, 25G signals can be transmitted in 200m in OM3 fiber and 300m in OM4 fiber; Without enabling the FEC function, it can transmit 150m in OM3 fiber and 200m in OM4 fiber, thus expanding its application scenarios.

The present invention also provides an optical fiber communication device, the optical fiber communication device includes the above-mentioned laser assembly;

Alternatively, the optical fiber communication device includes the above-mentioned optical module.

The optical fiber communication equipment includes the above-mentioned laser assembly; the detailed structure of the laser assembly can refer to the above-mentioned embodiments, which will not be repeated here; it can be understood that since the above-mentioned laser assembly is used in the optical fiber communication equipment, the The embodiments of the device include all the technical solutions of all the above embodiments of the laser assembly, and the technical effects achieved are also the same, which will not be repeated here. The optical fiber communication device may further include the above-mentioned optical module, which has been described above and will not be repeated here.

The above descriptions are only optional embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, any equivalent structural transformations made by using the contents of the description and drawings of the present invention, or direct/indirect Applications in other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. A laser assembly for use in an optical module, wherein the laser assembly comprises: base; a laser module, arranged on the base; a tube cap, the tube cap sealing cover is arranged on the base and accommodates the laser module therein; The pipe cap has a first side wall facing the base, and the first side wall is arranged as a flat plate; and and a lens, which is arranged on the outer surface of the first side wall and is used to change the angle of the light entering the laser module or the light emitted by the laser module. 2. The laser assembly of claim 1, wherein the laser assembly further comprises: A pin assembly, one end of the pin assembly is connected to the laser module, and the other end of the pin assembly is disposed away from the cap and protruding from the base. 3. The laser assembly of claim 2, wherein the laser module comprises: a conductive sheet, disposed on the base, and connected with the pin assembly; and A laser is arranged on the conductive sheet. 4. The laser assembly of claim 3, wherein the laser module further comprises: The light detector is arranged on the base and connected with the pin assembly. 5. The laser assembly of claim 3, wherein the laser is a laser transmitter or a laser receiver. 6. An optical module, characterized in that the optical module comprises: electrical interface; A laser assembly, which is the laser assembly of any one of claims 1-5, the laser assembly is electrically connected to the electrical interface; and The main control device is electrically connected with the laser assembly. 7. The optical module according to claim 6, wherein the number of the laser components is two, one is a laser emitting component, and the other is a laser receiving component; The laser emitting component is used to convert the electrical signal connected to the electrical interface into an optical signal and then output it; The laser receiving component is used for receiving an optical signal, and is used for converting the received optical signal into an electrical signal and outputting it to the electrical interface; The optical module further includes: a laser driver, which is respectively electrically connected to the electrical interface, the main control device and the laser emitting component; the laser driver is used for, under the control of the main controller, according to the electrical signal connected to the electrical interface driving the laser emitting assembly to work; and Limiting amplifier, the limiting amplifier is respectively electrically connected with the main control device, the electrical interface and the laser receiving component; the limiting amplifier is used for, under the control of the main control device, the The electrical signal output by the laser receiving component is output to the electrical interface after being limited and amplified. 8. The optical module of claim 7, wherein the optical module further comprises: a first casing and a first heat sink, the laser emitting component, the laser driver and the first heat sink are accommodated in the first casing; the first heat sink and the first casing The inner surface side of the first heat dissipation table is attached and arranged on the side of the first heat sink away from the first casing. The laser emitting assembly and the laser driver are respectively provided with high-conductivity heat sinks, and the laser emitting assembly, The laser drivers are attached to their corresponding high-conductivity heat sinks, so as to transfer heat to the first casing through the high-conductivity heat sinks and the heat sink; A second casing and a second heat dissipation stage, the laser receiving assembly, the limiting amplifier and the second heat dissipation stage are accommodated in the second shell; the second heat dissipation stage and the second shell The inner surface side of the body is attached and arranged, and the side of the second heat dissipation table facing away from the second shell is provided with a high-conductivity heat sink corresponding to the laser receiving component and the limiting amplifier, respectively. The component, the limiting amplifier and the corresponding high-conductivity heat sink are attached and disposed, so as to transfer heat to the second casing through the high-conductivity heat sink and the heat sink; an outer casing, the first casing and the second casing are accommodated in the outer casing, the outer casing respectively protrudes a connecting portion corresponding to the first casing and the second casing, and the outer casing The outer surfaces of the first casing and the second casing are fitted with their corresponding connecting parts, so as to transmit heat to the outer casing. 9. The optical module of claim 7, wherein the optical module further comprises a transmit signal shaping circuit and a receive signal shaping circuit; The transmission signal shaping circuit is respectively electrically connected with the electrical interface, the laser driver and the main control device; the transmission signal shaping circuit is used to connect the electrical interface under the control of the main control device The incoming electrical signal is shaped to lock the electrical signal in the preset rate range, and the corresponding electrical signal is shaped and output to the laser driver; The received signal shaping circuit is respectively electrically connected with the limiting amplifier, the electrical interface and the main control device; the received signal shaping circuit is used for limiting the amplitude under the control of the main control device The electric signal output by the amplifier is limited and amplified to be shaped to lock the electric signal in the preset rate range, and the corresponding electric signal is output to the electric interface after being shaped. 10. An optical fiber communication device, wherein the optical fiber communication device comprises the laser assembly according to any one of claims 1-5; Alternatively, the optical fiber communication device includes the optical module according to any one of claims 6-9.

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