JPS574007A - Multiple wavelength light communication system - Google Patents

Multiple wavelength light communication system

Info

Publication number
JPS574007A
JPS574007A JP7697480A JP7697480A JPS574007A JP S574007 A JPS574007 A JP S574007A JP 7697480 A JP7697480 A JP 7697480A JP 7697480 A JP7697480 A JP 7697480A JP S574007 A JPS574007 A JP S574007A
Authority
JP
Japan
Prior art keywords
diffraction grating
semiconductor laser
light
single mode
diffraction
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP7697480A
Other languages
Japanese (ja)
Inventor
Takumi Tomijima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7697480A priority Critical patent/JPS574007A/en
Publication of JPS574007A publication Critical patent/JPS574007A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • 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

Abstract

PURPOSE:To obtain a laser light source of multiwavelength single mode oscillation, by fixing oscillation wavelength of an array of plural multimode semiconductor lasers through a diffraction grating to oscillate them in a single mode. CONSTITUTION:The light emitted from a semiconductor laser array 1 where plural semiconductor lasers are arranged in a line along the direction of dispersion of a diffraction grating becomes a parallel light flux by a collimator 4 and is incident to the diffraction grating at an incident angle different by position of each semiconductor laser. The light of a wavelength, which has a diffraction angle equal to an incident angle thetan, from the nth semiconductor laser is fed back to the nth semiconductor laser to fix the oscillation wavelength to lambdan. The oscillation wavelength is fixed similarly for semiconductor laser arrays 2 and 3. The diffracted light of the 0 order of a diffraction grating 7 is diffracted by a diffraction grating 8 of, for example, a double diffraction constant placed here and is condensed to the same point by a telemeter 9. Thus, a light source of multiwavelength single mode oscillation is obtained cheaply.
JP7697480A 1980-06-07 1980-06-07 Multiple wavelength light communication system Pending JPS574007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7697480A JPS574007A (en) 1980-06-07 1980-06-07 Multiple wavelength light communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7697480A JPS574007A (en) 1980-06-07 1980-06-07 Multiple wavelength light communication system

Publications (1)

Publication Number Publication Date
JPS574007A true JPS574007A (en) 1982-01-09

Family

ID=13620748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7697480A Pending JPS574007A (en) 1980-06-07 1980-06-07 Multiple wavelength light communication system

Country Status (1)

Country Link
JP (1) JPS574007A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5369659A (en) * 1993-12-07 1994-11-29 Cynosure, Inc. Fault tolerant optical system using diode laser array
JPH0918423A (en) * 1995-06-30 1997-01-17 Nec Corp Optical connecting element and optical connector
FR2803116A1 (en) * 1999-12-23 2001-06-29 Thomson Csf Laser source wavelength multiplexer, having laser sources transmitting different wavelengths, diffraction network forming cavity mirror, reflecting beam part, second diffraction network focus point forming single beam
WO2006045303A2 (en) * 2004-10-29 2006-05-04 Volker Raab Multispectral laser comprising several gain elements
US8915948B2 (en) 2002-06-19 2014-12-23 Palomar Medical Technologies, Llc Method and apparatus for photothermal treatment of tissue at depth
US9028536B2 (en) 2006-08-02 2015-05-12 Cynosure, Inc. Picosecond laser apparatus and methods for its operation and use
WO2015075102A1 (en) * 2013-11-22 2015-05-28 Trumpf Laser Gmbh Wavelength selective external resonator and beam combining system for dense wavelength beam combining laser
WO2015055518A3 (en) * 2013-10-14 2015-07-16 Trumpf Laser Gmbh High brightness dense wavelength multiplexing laser
US9780518B2 (en) 2012-04-18 2017-10-03 Cynosure, Inc. Picosecond laser apparatus and methods for treating target tissues with same
US10245107B2 (en) 2013-03-15 2019-04-02 Cynosure, Inc. Picosecond optical radiation systems and methods of use
US10434324B2 (en) 2005-04-22 2019-10-08 Cynosure, Llc Methods and systems for laser treatment using non-uniform output beam
US11418000B2 (en) 2018-02-26 2022-08-16 Cynosure, Llc Q-switched cavity dumped sub-nanosecond laser

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5369659A (en) * 1993-12-07 1994-11-29 Cynosure, Inc. Fault tolerant optical system using diode laser array
JPH0918423A (en) * 1995-06-30 1997-01-17 Nec Corp Optical connecting element and optical connector
FR2803116A1 (en) * 1999-12-23 2001-06-29 Thomson Csf Laser source wavelength multiplexer, having laser sources transmitting different wavelengths, diffraction network forming cavity mirror, reflecting beam part, second diffraction network focus point forming single beam
WO2001048882A1 (en) * 1999-12-23 2001-07-05 Thales Laser source wavelength multiplexer
US8915948B2 (en) 2002-06-19 2014-12-23 Palomar Medical Technologies, Llc Method and apparatus for photothermal treatment of tissue at depth
WO2006045303A2 (en) * 2004-10-29 2006-05-04 Volker Raab Multispectral laser comprising several gain elements
WO2006045303A3 (en) * 2004-10-29 2006-10-26 Volker Raab Multispectral laser comprising several gain elements
US10434324B2 (en) 2005-04-22 2019-10-08 Cynosure, Llc Methods and systems for laser treatment using non-uniform output beam
US11712299B2 (en) 2006-08-02 2023-08-01 Cynosure, LLC. Picosecond laser apparatus and methods for its operation and use
US10966785B2 (en) 2006-08-02 2021-04-06 Cynosure, Llc Picosecond laser apparatus and methods for its operation and use
US10849687B2 (en) 2006-08-02 2020-12-01 Cynosure, Llc Picosecond laser apparatus and methods for its operation and use
US9028536B2 (en) 2006-08-02 2015-05-12 Cynosure, Inc. Picosecond laser apparatus and methods for its operation and use
US11664637B2 (en) 2012-04-18 2023-05-30 Cynosure, Llc Picosecond laser apparatus and methods for treating target tissues with same
US11095087B2 (en) 2012-04-18 2021-08-17 Cynosure, Llc Picosecond laser apparatus and methods for treating target tissues with same
US9780518B2 (en) 2012-04-18 2017-10-03 Cynosure, Inc. Picosecond laser apparatus and methods for treating target tissues with same
US10305244B2 (en) 2012-04-18 2019-05-28 Cynosure, Llc Picosecond laser apparatus and methods for treating target tissues with same
US10581217B2 (en) 2012-04-18 2020-03-03 Cynosure, Llc Picosecond laser apparatus and methods for treating target tissues with same
US10765478B2 (en) 2013-03-15 2020-09-08 Cynosurce, Llc Picosecond optical radiation systems and methods of use
US10285757B2 (en) 2013-03-15 2019-05-14 Cynosure, Llc Picosecond optical radiation systems and methods of use
US10245107B2 (en) 2013-03-15 2019-04-02 Cynosure, Inc. Picosecond optical radiation systems and methods of use
US11446086B2 (en) 2013-03-15 2022-09-20 Cynosure, Llc Picosecond optical radiation systems and methods of use
CN105814476B (en) * 2013-10-14 2018-04-20 通快激光有限责任公司 The intensive ripple multiplexed laser of high brightness
CN105814476A (en) * 2013-10-14 2016-07-27 通快激光有限责任公司 High brightness dense wavelength multiplexing laser
WO2015055518A3 (en) * 2013-10-14 2015-07-16 Trumpf Laser Gmbh High brightness dense wavelength multiplexing laser
US9905993B2 (en) 2013-11-22 2018-02-27 Trumpf Laser Gmbh Wavelength selective external resonator and beam combining system for dense wavelength beam combining laser
JP2016539505A (en) * 2013-11-22 2016-12-15 トルンプフ レーザー ゲゼルシャフト ミット ベシュレンクテル ハフツングＴＲＵＭＰＦ Ｌａｓｅｒ ＧｍｂＨ Wavelength selective external resonator and beam combining system for high density wavelength beam coupled laser
CN105765801A (en) * 2013-11-22 2016-07-13 通快激光有限责任公司 Wavelength selective external resonator and beam combining system for dense wavelength beam combining laser
WO2015075102A1 (en) * 2013-11-22 2015-05-28 Trumpf Laser Gmbh Wavelength selective external resonator and beam combining system for dense wavelength beam combining laser
US11418000B2 (en) 2018-02-26 2022-08-16 Cynosure, Llc Q-switched cavity dumped sub-nanosecond laser
US11791603B2 (en) 2018-02-26 2023-10-17 Cynosure, LLC. Q-switched cavity dumped sub-nanosecond laser

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