JP5385526B2 - 半導体レーザ - Google Patents
半導体レーザ Download PDFInfo
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- JP5385526B2 JP5385526B2 JP2007298381A JP2007298381A JP5385526B2 JP 5385526 B2 JP5385526 B2 JP 5385526B2 JP 2007298381 A JP2007298381 A JP 2007298381A JP 2007298381 A JP2007298381 A JP 2007298381A JP 5385526 B2 JP5385526 B2 JP 5385526B2
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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
- H01S5/20—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
- H01S5/223—Buried stripe structure
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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
- H01S5/20—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
- H01S5/2205—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 comprising special burying or current confinement layers
- H01S5/2206—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 comprising special burying or current confinement layers based on III-V materials
- H01S5/221—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 comprising special burying or current confinement layers based on III-V materials containing aluminium
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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
- H01S5/20—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
- H01S5/2205—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 comprising special burying or current confinement layers
- H01S5/2218—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 comprising special burying or current confinement layers having special optical properties
- H01S5/2219—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 comprising special burying or current confinement layers having special optical properties absorbing
-
- 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
- H01S5/20—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
- H01S5/223—Buried stripe structure
- H01S5/2231—Buried stripe structure with inner confining structure only between the active layer and the upper electrode
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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
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/34—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
- H01S5/343—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/34326—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser with a well layer based on InGa(Al)P, e.g. red laser
-
- 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
- H01S5/20—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
- H01S5/2054—Methods of obtaining the confinement
- H01S5/2081—Methods of obtaining the confinement using special etching techniques
- H01S5/209—Methods of obtaining the confinement using special etching techniques special etch stop layers
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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
- H01S5/20—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
- H01S5/2205—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 comprising special burying or current confinement layers
- H01S5/2222—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 comprising special burying or current confinement layers having special electric properties
- H01S5/2227—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 comprising special burying or current confinement layers having special electric properties special thin layer sequence
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Semiconductor Lasers (AREA)
Description
本発明の実施の形態に係る半導体レーザは、図1及び図2に示すように、基板10と、基板10上に設けられたn型(第1導電型)クラッド層12と、n型クラッド層12上に設けられた活性層13と、活性層13上に設けられたアルミニウム(Al)を含有する化合物であり、電流通路となるストライプ状のリッジ構造を有するp型(第2導電型)クラッド層14と、リッジ構造の上面を除くp型クラッド層14の表面に設けられたAlを含有する化合物であり、Alの組成比がp型クラッド層14のAlの組成比以下である電流ブロック層16と、電流ブロック層16上に設けられ、レーザ発振波長に対して光を吸収する光吸収層17とを備える。
上記のように、本発明は実施の形態によって記載したが、この開示の一部をなす記述及び図面はこの発明を限定するものであると理解するべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかになるはずである。
12…n型クラッド層
13…活性層
14…p型クラッド層
14a…第1p型クラッド層
14b…第2p型クラッド層
15…エッチングストップ層
16…電流ブロック層
17…光吸収層
18…BDR層
19…コンタクト層
20…n側電極
21…p側電極
30…マスク
Claims (8)
- 基板と、
前記基板上に設けられた第1導電型クラッド層と、
前記第1導電型クラッド層上に設けられた活性層と、
前記活性層上に設けられたAlを含有する化合物であり、電流通路となるストライプ状のリッジ構造を有する第2導電型クラッド層と、
前記リッジ構造の上面を除く前記第2導電型クラッド層の表面に設けられたAlを含有する化合物であり、Alの組成比が前記第2導電型クラッド層のAlの組成比以下である電流ブロック層と、
前記電流ブロック層上に設けられ、レーザ発振波長に対して光を吸収する光吸収層
とを備え、
前記電流ブロック層は、前記第2導電型クラッド層とのAlの組成比の差が5%以内であることを特徴とする半導体レーザ。 - 前記活性層は、5〜8ペアの井戸層が積層された多重量子井戸構造であることを特徴とする請求項1に記載の半導体レーザ。
- 前記リッジ構造のない箇所の前記第2導電型クラッド層の厚さは200〜500nmであり、且つ、前記電流ブロック層の厚さは100〜400nmであることを特徴とする請求項1または請求項2に記載の半導体レーザ。
- 前記リッジ構造のない箇所の前記第2導電型クラッド層と前記電流ブロック層とを合わせた厚さは、400〜800nmであることを特徴とする請求項1〜3のいずれか1項に記載の半導体レーザ。
- 前記リッジ構造の底部の幅は、1.5〜4.0μmであることを特徴とする請求項1〜4のいずれか1項に記載の半導体レーザ。
- 前記活性層の厚さは、15〜90nmであることを特徴とする請求項1〜5のいずれか1項に記載の半導体レーザ。
- 前記リッジ構造のストライプ方向の長さは、250〜500μmであることを特徴とする請求項1〜6のいずれか1項に記載の半導体レーザ。
- 前記活性層周辺に形成された可飽和吸収域が、前記活性層で生じたレーザ光の吸収及び放出を行ってセルフパルセーションすることを特徴とする請求項1〜7のいずれか1項に記載の半導体レーザ。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007298381A JP5385526B2 (ja) | 2007-11-16 | 2007-11-16 | 半導体レーザ |
US12/734,665 US9099841B2 (en) | 2007-11-16 | 2008-10-17 | Semiconductor laser |
CN2008801197490A CN101889374B (zh) | 2007-11-16 | 2008-10-17 | 半导体激光器 |
KR1020107013173A KR101579988B1 (ko) | 2007-11-16 | 2008-10-17 | 반도체 레이저 |
PCT/JP2008/068873 WO2009063720A1 (ja) | 2007-11-16 | 2008-10-17 | 半導体レーザ |
TW097142669A TW200943654A (en) | 2007-11-16 | 2008-11-05 | Semiconductor laser |
US14/815,748 US20150340840A1 (en) | 2007-11-16 | 2015-07-31 | Semiconductor laser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007298381A JP5385526B2 (ja) | 2007-11-16 | 2007-11-16 | 半導体レーザ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009124045A JP2009124045A (ja) | 2009-06-04 |
JP5385526B2 true JP5385526B2 (ja) | 2014-01-08 |
Family
ID=40638573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007298381A Active JP5385526B2 (ja) | 2007-11-16 | 2007-11-16 | 半導体レーザ |
Country Status (6)
Country | Link |
---|---|
US (2) | US9099841B2 (ja) |
JP (1) | JP5385526B2 (ja) |
KR (1) | KR101579988B1 (ja) |
CN (1) | CN101889374B (ja) |
TW (1) | TW200943654A (ja) |
WO (1) | WO2009063720A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011075502A1 (de) * | 2011-05-09 | 2012-11-15 | Forschungsverbund Berlin E.V. | Breitstreifen-Diodenlaser mit hoher Effizienz und geringer Fernfelddivergenz |
JP2013165275A (ja) * | 2013-03-12 | 2013-08-22 | Rohm Co Ltd | 半導体レーザ素子 |
EP3016219B1 (en) * | 2014-10-31 | 2018-12-26 | Nichia Corporation | Semiconductor laser element |
JP7145936B2 (ja) * | 2018-04-04 | 2022-10-03 | 三菱電機株式会社 | 半導体レーザおよびその製造方法 |
DE102019102499A1 (de) * | 2019-01-31 | 2020-08-06 | Forschungsverbund Berlin E.V. | Vorrichtung zur Erzeugung von Laserstrahlung |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5161167A (en) * | 1990-06-21 | 1992-11-03 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor laser producing visible light |
US5523256A (en) * | 1993-07-21 | 1996-06-04 | Matsushita Electric Industrial Co., Ltd. | Method for producing a semiconductor laser |
JPH07335981A (ja) | 1994-06-07 | 1995-12-22 | Mitsubishi Electric Corp | 半導体発光素子,レーザアンプ,及び増幅機能を有する波長可変フィルタ |
JP3778840B2 (ja) | 1995-12-28 | 2006-05-24 | 三洋電機株式会社 | 半導体レーザ素子とその製造方法 |
WO1997032376A1 (fr) * | 1996-03-01 | 1997-09-04 | Matsushita Electric Industrial Co., Ltd. | Laser a semi-conducteur et procede de clivage |
JPH09283842A (ja) * | 1996-04-16 | 1997-10-31 | Toshiba Corp | 半導体レーザ素子 |
JPH1098233A (ja) | 1996-09-25 | 1998-04-14 | Rohm Co Ltd | 半導体レーザおよびその製法 |
JPH11233881A (ja) * | 1998-02-17 | 1999-08-27 | Sony Corp | 自励発振型半導体レーザ |
JP2000183457A (ja) * | 1998-12-10 | 2000-06-30 | Sony Corp | 半導体レーザとその製造方法 |
JP2004165481A (ja) * | 2002-11-14 | 2004-06-10 | Sharp Corp | 自励発振型半導体レーザ |
JP2004342719A (ja) * | 2003-05-14 | 2004-12-02 | Toshiba Corp | 半導体レーザ装置及びその製造方法 |
JP2005243945A (ja) * | 2004-02-26 | 2005-09-08 | Sony Corp | 半導体発光装置 |
JP2006054426A (ja) * | 2004-07-16 | 2006-02-23 | Mitsubishi Chemicals Corp | 自励発振型半導体レーザ装置 |
-
2007
- 2007-11-16 JP JP2007298381A patent/JP5385526B2/ja active Active
-
2008
- 2008-10-17 WO PCT/JP2008/068873 patent/WO2009063720A1/ja active Application Filing
- 2008-10-17 CN CN2008801197490A patent/CN101889374B/zh active Active
- 2008-10-17 US US12/734,665 patent/US9099841B2/en active Active
- 2008-10-17 KR KR1020107013173A patent/KR101579988B1/ko active IP Right Grant
- 2008-11-05 TW TW097142669A patent/TW200943654A/zh unknown
-
2015
- 2015-07-31 US US14/815,748 patent/US20150340840A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2009063720A1 (ja) | 2009-05-22 |
US9099841B2 (en) | 2015-08-04 |
US20110128985A1 (en) | 2011-06-02 |
CN101889374B (zh) | 2011-09-28 |
US20150340840A1 (en) | 2015-11-26 |
TW200943654A (en) | 2009-10-16 |
KR101579988B1 (ko) | 2015-12-23 |
KR20100094512A (ko) | 2010-08-26 |
CN101889374A (zh) | 2010-11-17 |
JP2009124045A (ja) | 2009-06-04 |
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