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WO2003036766A3 - Laser apparatus - Google Patents

Laser apparatus Download PDF

Info

Publication number
WO2003036766A3
WO2003036766A3 PCT/EP2002/011731 EP0211731W WO03036766A3 WO 2003036766 A3 WO2003036766 A3 WO 2003036766A3 EP 0211731 W EP0211731 W EP 0211731W WO 03036766 A3 WO03036766 A3 WO 03036766A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
combined
feedback
laser
lobe
Prior art date
Application number
PCT/EP2002/011731
Other languages
French (fr)
Other versions
WO2003036766A2 (en
Inventor
Christian Pedersen
Peter Tidemand-Lictenberg
Weidong Sheng
Original Assignee
Torsana Laser Technologies As
Christian Pedersen
Peter Tidemand-Lictenberg
Weidong Sheng
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Torsana Laser Technologies As, Christian Pedersen, Peter Tidemand-Lictenberg, Weidong Sheng filed Critical Torsana Laser Technologies As
Priority to AU2002350581A priority Critical patent/AU2002350581A1/en
Publication of WO2003036766A2 publication Critical patent/WO2003036766A2/en
Publication of WO2003036766A3 publication Critical patent/WO2003036766A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
    • H01S5/4031—Edge-emitting structures
    • H01S5/4062—Edge-emitting structures with an external cavity or using internal filters, e.g. Talbot filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08018—Mode suppression
    • H01S3/0804—Transverse or lateral modes
    • H01S3/0805—Transverse or lateral modes by apertures, e.g. pin-holes or knife-edges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4012—Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
    • H01S5/4087—Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Semiconductor Lasers (AREA)

Abstract

A laser assembly (31) comprises a plurality of spaced apart laser devices (30). A light feedback device (40) forms a resonant external cavity with the laser assembly (31). A dispersive device (36) is positioned to receive light from the laser assembly (31) and to transmit or reflect light to the feedback device (40). An imaging device (32, 35) images primary beams (33) from the laser devices (30) at the dispersive device (36) to form a combined intensity distribution pattern having multiple combined lobes (46A, 46B) corresponding to multiple lobes of the individual primary beams (33), each primary light beam contributing to each combined far-field lobe of the combined intensity distribution pattern by light from a corresponding far-field lobe of that primary light beam. Each laser device (30) lases at a different frequency such that its light is directed by the dispersive device (36) along a preferred direction of the light feedback device (40) to obtain maximum feedback. The primary beams combine to form at least one combined feedback beam (37) reflected back to the laser assembly (31) and at least one combined output beam (38) leaving the apparatus, each combined beam having a common axial direction. The light feedback device (40) provides a different reflectance to light from one off-axis lobe of the said combined intensity distribution pattern than to light from another off-axis lobe of the said pattern.
PCT/EP2002/011731 2001-10-23 2002-10-18 Laser apparatus WO2003036766A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002350581A AU2002350581A1 (en) 2001-10-23 2002-10-18 Laser apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33050901P 2001-10-23 2001-10-23
US60/330,509 2001-10-23

Publications (2)

Publication Number Publication Date
WO2003036766A2 WO2003036766A2 (en) 2003-05-01
WO2003036766A3 true WO2003036766A3 (en) 2003-10-23

Family

ID=23290076

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/011731 WO2003036766A2 (en) 2001-10-23 2002-10-18 Laser apparatus

Country Status (2)

Country Link
AU (1) AU2002350581A1 (en)
WO (1) WO2003036766A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9793674B2 (en) 2003-07-03 2017-10-17 Necsel Intellectual Property, Inc. Chirped Bragg grating elements

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7528385B2 (en) 2002-03-15 2009-05-05 Pd-Ld, Inc. Fiber optic devices having volume Bragg grating elements
EP1502139A4 (en) 2002-03-15 2005-06-29 Pd Ld Inc Fiber optic devices having volume bragg grating elements
JP2007519940A (en) 2003-09-26 2007-07-19 ピーディー−エルディー、インク． Volume Bragg Grating Element Manufacturing Method
EP1756922B1 (en) * 2004-06-16 2008-07-09 Danmarks Tekniske Universitet Segmented diode laser system
DE102004040608B4 (en) * 2004-08-21 2006-09-07 Dilas Diodenlaser Gmbh Diode laser with an optical device for increasing the radiance of an output laser beam emerging from it
US7949030B2 (en) 2005-02-03 2011-05-24 Pd-Ld, Inc. High-power, phased-locked, laser arrays
TW200644365A (en) * 2005-03-25 2006-12-16 Sumitomo Osaka Cement Co Ltd External resonance type semiconductor laser
EP1961086B1 (en) 2005-12-16 2009-07-01 Danmarks Tekniske Universitet Laser system with segmented diode laser
US7583476B2 (en) 2006-08-22 2009-09-01 Intri-Plex Technologies, Inc. Tolerance ring for data storage with cut-out feature for mass control
DE112007002367B9 (en) * 2006-10-05 2013-07-18 Northrop Grumman Corp. Method and system for the diffractive combination of beams through a DOE beamformer with passive phase control
US7468832B2 (en) * 2006-10-05 2008-12-23 Northrop Grumman Corporation Method and system for coherent beam combining using an integrated diffractive beam combiner and sampler
US7436588B2 (en) * 2006-10-05 2008-10-14 Northrop Grumman Corporation Method and system for hybrid coherent and incoherent diffractive beam combining
US8455157B1 (en) 2007-04-26 2013-06-04 Pd-Ld, Inc. Methods for improving performance of holographic glasses
DE102008052475A1 (en) 2008-10-20 2010-04-29 Raab, Volker, Dr. A polarization
GB201107948D0 (en) * 2011-05-12 2011-06-22 Powerphotonic Ltd Multi-wavelength diode laser array
US9391713B2 (en) 2013-10-14 2016-07-12 Trumpf Laser Gmbh High brightness dense wavelength multiplexing laser
CN103904557A (en) * 2014-03-25 2014-07-02 中国科学院半导体研究所 Device and method for beam combination of laser devices
CN103996967B (en) * 2014-06-11 2018-03-06 中国科学院半导体研究所 The device of beam quality is improved for high power solid state laser
CA3181132A1 (en) 2020-12-29 2022-07-07 Carles ORIACH FONT Spectral splitter device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998056087A1 (en) * 1997-06-06 1998-12-10 Torsana A/S Laser systems using phase conjugate feedback
US6192062B1 (en) * 1998-09-08 2001-02-20 Massachusetts Institute Of Technology Beam combining of diode laser array elements for high brightness and power

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998056087A1 (en) * 1997-06-06 1998-12-10 Torsana A/S Laser systems using phase conjugate feedback
US6192062B1 (en) * 1998-09-08 2001-02-20 Massachusetts Institute Of Technology Beam combining of diode laser array elements for high brightness and power

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DANEU V ET AL: "SPECTRAL BEAM COMBINING OF A BROAD-STRIPE DIODE LASER ARRAY IN AN EXTERNAL CAVITY", OPTICS LETTERS, OPTICAL SOCIETY OF AMERICA, WASHINGTON, US, vol. 25, no. 6, 15 March 2000 (2000-03-15), pages 405 - 407, XP000947019, ISSN: 0146-9592 *
MACCORMACK S ET AL: "HIGH-BRIGHTNESS OUTPUT FROM A LASER-DIODE ARRAY COUPLED TO A PHASE-CONJUGATING MIRROR", OPTICS LETTERS, OPTICAL SOCIETY OF AMERICA, WASHINGTON, US, vol. 18, no. 3, 1 February 1993 (1993-02-01), pages 211 - 213, XP000336402, ISSN: 0146-9592 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9793674B2 (en) 2003-07-03 2017-10-17 Necsel Intellectual Property, Inc. Chirped Bragg grating elements
US10205295B2 (en) 2003-07-03 2019-02-12 Necsel Intellectual Property, Inc. Chirped Bragg grating elements

Also Published As

Publication number Publication date
AU2002350581A1 (en) 2003-05-06
WO2003036766A2 (en) 2003-05-01

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