JP7016933B2 - レーザ装置 - Google Patents
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- JP7016933B2 JP7016933B2 JP2020184542A JP2020184542A JP7016933B2 JP 7016933 B2 JP7016933 B2 JP 7016933B2 JP 2020184542 A JP2020184542 A JP 2020184542A JP 2020184542 A JP2020184542 A JP 2020184542A JP 7016933 B2 JP7016933 B2 JP 7016933B2
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/023—Mount members, e.g. sub-mount members
- H01S5/02325—Mechanically integrated components on mount members or optical micro-benches
- H01S5/02326—Arrangements for relative positioning of laser diodes and optical components, e.g. grooves in the mount to fix optical fibres or lenses
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- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
- H01S5/0071—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for beam steering, e.g. using a mirror outside the cavity to change the beam direction
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/02218—Material of the housings; Filling of the housings
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
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- H01S5/0225—Out-coupling of light
- H01S5/02255—Out-coupling of light using beam deflecting elements
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0235—Method for mounting laser chips
- H01S5/02355—Fixing laser chips on mounts
- H01S5/0236—Fixing laser chips on mounts using an adhesive
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/024—Arrangements for thermal management
- H01S5/02469—Passive cooling, e.g. where heat is removed by the housing as a whole or by a heat pipe without any active cooling element like a TEC
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/024—Arrangements for thermal management
- H01S5/02476—Heat spreaders, i.e. improving heat flow between laser chip and heat dissipating elements
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- H—ELECTRICITY
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- 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
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- H01S5/18361—Structure of the reflectors, e.g. hybrid mirrors
- H01S5/1838—Reflector bonded by wafer fusion or by an intermediate compound
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- 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
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- H01S5/18397—Plurality of active layers vertically stacked in a cavity for multi-wavelength emission
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- 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
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- 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
- H01S5/4075—Beam steering
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- H—ELECTRICITY
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- 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
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/32—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
- H01S5/323—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
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- 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
- H01S5/4093—Red, green and blue [RGB] generated directly by laser action or by a combination of laser action with nonlinear frequency conversion
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Description
1a 主表面
2 レーザ発振部
2a 赤色レーザ素子
2b 青色レーザ素子
2c 緑色レーザ素子
3 反射部材
3a 反射層
3b 土台部
4 カバー部材
4a 透光性部
7 凹部
7a 側面
7b 底面
8 放熱部材
9 接着剤
20 発光層
20a 出射面
20b レーザ素子の側面
21 第1主外表面
22 第2主外表面
30 傾斜面
71 中央部
72 周辺部
100 レーザ装置
L レーザ光
L1 レーザビーム
L2 レーザビーム
L3 レーザビーム
Claims (12)
- 主表面および前記主表面に設けられた凹部を含む基板と、
前記主表面に対して直接接触するようにまたは接着剤を媒介として固定され、前記主表面に沿ってレーザ光を出射する出射面を有するレーザ発振部と、
前記凹部の底面に対して固定され、前記レーザ光を反射する位置に前記主表面に対して斜めに傾いた傾斜面を有する反射部材と、を備え、
前記傾斜面の少なくとも一部が、前記凹部の内側の空間に位置付けられ、
前記底面は、前記反射部材が固定された中央部と、前記中央部を取り囲む周辺部と、を含み、
前記周辺部が、前記中央部よりも低い、レーザ装置。 - 前記レーザ発振部および前記主表面を覆うように前記基板に取り付けられたカバー部材をさらに備え、
前記カバー部材は、前記傾斜面で反射した前記レーザ光を透過する透光性部を含んでいる、請求項1に記載のレーザ装置。 - 前記レーザ発振部は、前記レーザ光を構成する複数のレーザビームをそれぞれ出射する複数のレーザ素子を含み、
前記複数のレーザ素子は、前記複数のレーザビームのそれぞれが所定の一方向に沿って出射されるように配置されている、請求項1に記載のレーザ装置。 - 前記出射面が、前記凹部の内側の空間の上方に位置付けられているか、または、前記凹部の側面と同一面内に配置されている、請求項1に記載のレーザ装置。
- 前記レーザ発振部は、前記出射面を有する発光層を含む積層構造体の半導体レーザ素子を含み、
前記積層構造体は、前記発光層に相対的に近い第1主外表面と、前記発光層から相対的に遠い第2主外表面と、を含み、
前記第1主外表面と前記主表面とが、直接接触するか、または、前記接着剤を介して固定された、請求項1に記載のレーザ装置。 - 前記レーザ発振部の周囲空間が密閉状態になるように、前記基板と前記カバー部材との間の隙間が封止されている、請求項2に記載のレーザ装置。
- 前記基板は、前記主表面とは反対側にある裏側面を含み、
前記レーザ発振部に対向する位置の前記裏側面の上に前記基板の熱貫流率よりも高い熱貫流率を有する放熱部材をさらに備えた、請求項1に記載のレーザ装置。 - 前記複数のレーザ素子は、赤色のレーザビームを発する赤色レーザ素子と、緑糸のレーザビームを発する緑色レーザ素子、青色のレーザビームを発する青色レーザ素子を含み、
前記青色レーザ素子が前記赤色レーザ素子と前記緑色レーザ素子との間に設けられた、請求項3に記載のレーザ装置。 - 前記レーザ発振部は、レーザ光を出射するIII-V族半導体を含み、
前記基板の熱膨張係数が2.6×10-6/K~8.8×10-6/Kの範囲内にある、請求項1に記載のレーザ装置。 - 前記傾斜面は、銀の層の表面である、請求項1に記載のレーザ装置。
- 前記反射部材は、前記凹部の内側の空間で前記レーザ光の少なくとも一部を反射する、請求項1に記載のレーザ装置。
- 前記反射部材の傾斜面の下端の高さ位置と前記反射部材の下側面の傾斜面側の端の高さ位置とが異なる、請求項1に記載のレーザ装置。
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US16/700,827 | 2019-12-02 | ||
US16/700,827 US10992103B1 (en) | 2019-12-02 | 2019-12-02 | Laser device |
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JP2021090044A JP2021090044A (ja) | 2021-06-10 |
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JP6784870B1 (ja) * | 2019-04-24 | 2020-11-11 | 日本碍子株式会社 | 半導体膜 |
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- 2019-12-02 US US16/700,827 patent/US10992103B1/en active Active
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- 2020-11-04 JP JP2020184542A patent/JP7016933B2/ja active Active
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JP2005340408A (ja) | 2004-05-26 | 2005-12-08 | Matsushita Electric Ind Co Ltd | 半導体レーザ装置およびその製造方法 |
JP2010103487A (ja) | 2008-09-26 | 2010-05-06 | Sanyo Electric Co Ltd | 半導体レーザ装置および表示装置 |
JP2014102498A (ja) | 2012-10-26 | 2014-06-05 | Sumitomo Electric Ind Ltd | 波長多重光送信モジュール及びその製造方法 |
CN104426053A (zh) | 2013-09-06 | 2015-03-18 | 福州高意通讯有限公司 | 一种半导体激光器封装结构 |
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US20190103723A1 (en) | 2017-10-02 | 2019-04-04 | Nichia Corporation | Light emitting device and optical device |
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US10992103B1 (en) | 2021-04-27 |
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