JP2017162976A - 半導体レーザ装置 - Google Patents
半導体レーザ装置 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 80
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 32
- 229910052737 gold Inorganic materials 0.000 abstract description 25
- 239000010931 gold Substances 0.000 abstract description 25
- 238000007747 plating Methods 0.000 description 15
- 239000010408 film Substances 0.000 description 8
- 238000009826 distribution Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 238000005253 cladding Methods 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000031700 light absorption Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002109 crystal growth method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 239000005394 sealing glass Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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- H01S5/022—Mountings; Housings
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- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
- H01S5/0425—Electrodes, e.g. characterised by the structure
- H01S5/04252—Electrodes, e.g. characterised by the structure characterised by the material
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- H01S5/042—Electrical excitation ; Circuits therefor
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- 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
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- H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
- H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
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- Semiconductor Lasers (AREA)
Abstract
【解決手段】半導体レーザ素子1は、電流が注入されてレーザ光を発光する複数の発光領域24,25と、互いに対向する第1及び第2主面とを有する。複数の第1ワイヤ8が半導体レーザ素子1の第1主面にワイヤボンドされている。半導体レーザ素子1の第1主面は、複数の発光領域24,25の1つに対応する第1ストライプ領域26と他の発光領域に対応する第2ストライプ領域27を有する。複数の金ワイヤ8は、第1ストライプ領域26に第2ストライプ領域27よりも多くワイヤボンドされている。
【選択図】図4
Description
図1は、本発明の実施の形態1に係る半導体レーザ装置を示す側面図である。図2は、本発明の実施の形態1に係る半導体レーザ装置を示す正面図である。半導体レーザ素子1は、通信用、ディスクシステム又はプロジェクタの光源用としてよく用いられるφ9.0mmステムパッケージに搭載されている。
図9は、本発明の実施の形態2に係る半導体レーザ装置の主要部を示す平面図である。複数の金ワイヤ8は、第1ストライプ領域26に第2ストライプ領域27よりも多くワイヤボンドされている。このように、必ずしも全ての金ワイヤ8を1つの発光領域上のみにワイヤボンドする必要はなく、ワイヤ本数に偏りがあれば第1発光領域24と第2発光領域25の温度差が生じるため、スペックルノイズを軽減することができる。
図10は、本発明の実施の形態3に係る半導体レーザ装置の主要部を示す平面図である。複数の金ワイヤ8は第1ストライプ領域26のみにワイヤボンドされている。これにより、実施の形態2よりも第1発光領域24と第2発光領域25の温度差が大きくなるため、更にスペックルノイズを軽減することができる。ただし、実施の形態1のようにn側電極22及び金メッキ層23を第1ストライプ領域26のみに形成した方が、温度差が大きくなる。
Claims (5)
- 電流が注入されてレーザ光を発光する複数の発光領域と、互いに対向する第1及び第2主面とを有する半導体レーザ素子と、
前記半導体レーザ素子の前記第1主面にワイヤボンドされた複数の第1ワイヤとを備え、
前記半導体レーザ素子の前記第1主面は、前記複数の発光領域の1つに対応する第1ストライプ領域と他の発光領域に対応する第2ストライプ領域を有し、
前記複数の第1ワイヤは、前記第1ストライプ領域に前記第2ストライプ領域よりも多くワイヤボンドされていることを特徴とする半導体レーザ装置。 - 前記複数の第1ワイヤは、前記第1ストライプ領域のみにワイヤボンドされていることを特徴とする請求項1に記載の半導体レーザ装置。
- 前記半導体レーザ素子は、前記複数の第1ワイヤがワイヤボンドされる電極を更に有し、
前記電極は前記第1ストライプ領域に形成され、前記第2ストライプ領域には形成されていないことを特徴とする請求項2に記載の半導体レーザ装置。 - 前記半導体レーザ素子の前記第2主面が接合されたサブマウントと、
前記サブマウントにワイヤボンドされた第2ワイヤとを更に備え、
前記半導体レーザ素子の前記第1ストライプ領域は前記第2ストライプ領域よりも前記サブマウントのワイヤボンドされた領域に近いことを特徴とする請求項1〜3の何れか1項に記載の半導体レーザ装置。 - 前記複数の発光領域の数が2つであることを特徴とする請求項1〜4の何れか1項に記載の半導体レーザ装置。
Priority Applications (5)
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JP2016045757A JP6572803B2 (ja) | 2016-03-09 | 2016-03-09 | 半導体レーザ装置 |
US15/344,830 US9935423B2 (en) | 2016-03-09 | 2016-11-07 | Semiconductor laser device |
TW105136222A TWI659582B (zh) | 2016-03-09 | 2016-11-08 | 半導體雷射裝置 |
DE102017201875.5A DE102017201875B4 (de) | 2016-03-09 | 2017-02-07 | Halbleiterlaseranordnung |
CN201710137479.7A CN107181164B (zh) | 2016-03-09 | 2017-03-09 | 半导体激光器装置 |
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JP2016045757A JP6572803B2 (ja) | 2016-03-09 | 2016-03-09 | 半導体レーザ装置 |
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JP2017162976A true JP2017162976A (ja) | 2017-09-14 |
JP2017162976A5 JP2017162976A5 (ja) | 2018-08-30 |
JP6572803B2 JP6572803B2 (ja) | 2019-09-11 |
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JP (1) | JP6572803B2 (ja) |
CN (1) | CN107181164B (ja) |
DE (1) | DE102017201875B4 (ja) |
TW (1) | TWI659582B (ja) |
Cited By (1)
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WO2021079969A1 (ja) * | 2019-10-24 | 2021-04-29 | ヌヴォトンテクノロジージャパン株式会社 | 半導体レーザ装置 |
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JP6861062B2 (ja) * | 2017-03-22 | 2021-04-21 | 日本ルメンタム株式会社 | サブマウント、光送信モジュール、光モジュール、光伝送装置、並びに、それらの制御方法 |
DE112019006646B4 (de) * | 2019-01-10 | 2024-04-18 | Mitsubishi Electric Corporation | Halbleiter-Laservorrichtung |
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US9935423B2 (en) | 2018-04-03 |
US20170264075A1 (en) | 2017-09-14 |
DE102017201875A1 (de) | 2017-09-14 |
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TW201801430A (zh) | 2018-01-01 |
TWI659582B (zh) | 2019-05-11 |
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