JP2010219102A - 半導体レーザ素子 - Google Patents
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- 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
- H01S5/3434—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 comprising at least both As and P as V-compounds
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- 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
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Abstract
【解決手段】埋め込みヘテロ構造を有する半導体レーザ素子は、メサ構造の両側をRuドープInGaPワイドギャップ層302で埋め込み、続いてInGaPからInPへ組成が傾斜するRuドープInGaP組成傾斜層303で埋め込んだ後、RuドープInP層304で埋め込むことによって作製される。RuドープInGaPワイドギャップ層302とRuドープInP層304との間にRuドープInGaP組成傾斜層303を設けることにより、格子整合しないRuドープInGaPワイドギャップ層302とRuドープInP層304とを、結晶性が良好な埋め込み層とすることが可能となる。
【選択図】図3
Description
本実施の形態1は、本発明を端面発光型レーザ素子に適用したものである。半導体層の成長方法としてMOVPE法を用い、キャリアガスとして水素を用いた。また、III族元素の原料には、トリエチルガリウム(TEG)とトリメチルインジウム(TMI)を用い、V族元素の原料には、アルシン(AsH3)とフォスフィン(PH3)を用いた。さらに、n型ドーパントとしてジシラン(Si2H6)を用い、p型ドーパントとしてジメチル亜鉛(DMZ)を用いた。
本実施の形態2は、素子内に変調器部、導波路部およびレーザ部が一体に形成された変調器集積化光源に適用したものである。半導体層の成長方法としては、実施の形態1と同じMOVPE法を用いた。また、III族元素の原料は、実施の形態1の原料に加え、Al原料としてトリメチルアルミニウム(TMA)を用いた。
本実施の形態3は、本発明を裏面出射型レーザ素子に適用したものである。この素子構造は、プレーナ埋め込みヘテロ構造と呼ばれるものである。半導体層の成長方法としては、実施の形態1と同じMOVPE法を用いた。用いた原料は、実施の形態1、2と同じである。
本実施の形態4は、本発明を2×2型のInP系MQW型MZ変調器に適用したものである。この素子内には、入力した光の分離部、MZ変調器部、出力光の合波部のそれぞれが形成されている。半導体層の成長方法としては、実施の形態1と同じMOVPE法を用いた。用いた原料は、実施の形態1〜3と同じである。
102 下部クラッド層
103 活性層
104 上部クラッド層
105 コンタクト層
106 埋込み層
107 ワイドギャップ層
302 RuドープInGaPワイドギャップ層
303 RuドープInGaP組成傾斜層
304 RuドープInP層
601 下部電極
602 n型InP基板
603 n型InPバッファー層
604 Ruドープ半絶縁性埋め込み層
605 RuドープInGaPワイドギャップ層
606 RuドープInGaP組成傾斜層
607 RuドープInP層
608 上部電極
609 多重量子井戸(MQW)層
610 上部p型InPクラッド層
612 回折格子層
611 p+型InGaAsコンタクト層
613 パッシベーション膜
701 下部電極
702 n型InP基板
703 n型InPバッファー層
704 MQW層
705 導波路層
706 MQW層
707 回折格子層
708 Ruドープ半絶縁性埋め込み層
709 RuドープInGaP組成傾斜層
710 RuドープInGaPワイドギャップ層
711 RuドープInGaP組成傾斜層
712 RuドープInP層
713 上部電極
714 p型InPクラッド層
715 p型InGaAsコンタクト層
716 p+型InGaAsコンタクト層
717 パッシベーション膜
718 上部電極
801 下部電極
802 p型InP基板
803 p型InPバッファー層
804 Ruドープ半絶縁性埋め込み層
805 RuドープInGaPワイドギャップ層
806 RuドープInGaP組成傾斜層
807 RuドープInP層
808 上部n型InPクラッド層
809 n型InGaAsPコンタクト層
810 上部電極
811 MQW層
812 回折格子層
813 反射鏡
814 裏面レンズ
901 下部電極
902 n型InP基板
903 n型InPバッファー層
904 MQW層
905 p型InPクラッド層
906 Ruドープ半絶縁性埋め込み層
907 RuドープInP層
908 RuドープInGaPワイドギャップ層
909 RuドープInGaP組成傾斜層
910 RuドープInP層
911 上部電極
Claims (9)
- 半導体基板上にn型クラッド層、n型ガイド層、活性層、p型ガイド層、p型クラッド層を有し、前記n型クラッド層、前記n型ガイド層、前記活性層、前記p型ガイド層、前記p型クラッド層のそれぞれの両側が半絶縁性半導体層で埋め込まれた半導体レーザ素子であって、前記半絶縁性半導体層にRuが添加されていることを特徴とする半導体レーザ素子。
- 前記半絶縁性半導体層は、InP層、InGaP組成傾斜層、InGaP層の積層構造からなり、前記InP層、前記InGaP組成傾斜層、前記InGaP層のそれぞれに前記Ruが添加されていることを特徴とする請求項1記載の半導体レーザ素子。
- 前記活性層およびクラッド層と前記InP層との間に、前記InGaP層と前記InGaP組成傾斜層とを設けたことを特徴とする請求項2記載の半導体レーザ素子。
- 前記InGaP層と前記InP層の間に、前記InGaP組成傾斜層を設けたことを特徴とする請求項2記載の半導体レーザ素子。
- 前記InGaP層の膜厚は、臨界膜厚以下であることを特徴とする請求項1記載の半導体レーザ素子。
- 端面発光型レーザ素子であることを特徴とする請求項1記載の半導体レーザ素子。
- 裏面出射型レーザ素子であることを特徴とする請求項1記載の半導体レーザ素子。
- 前記半導体基板の主面上に、さらに変調器部および導波路部が形成された変調器集積化光源であることを特徴とする請求項1記載の半導体レーザ素子。
- 前記半導体基板の主面上に、入力した光の分離部、MZ変調器部、および出力光の合波部が形成されたMZ変調器であることを特徴とする請求項1記載の半導体レーザ素子。
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JP2009061093A JP2010219102A (ja) | 2009-03-13 | 2009-03-13 | 半導体レーザ素子 |
US12/718,009 US8270446B2 (en) | 2009-03-13 | 2010-03-05 | Semiconductor laser device |
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JP2009061093A JP2010219102A (ja) | 2009-03-13 | 2009-03-13 | 半導体レーザ素子 |
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JP5660940B2 (ja) * | 2010-04-27 | 2015-01-28 | 住友電工デバイス・イノベーション株式会社 | 光半導体装置の製造方法 |
JP2013077797A (ja) * | 2011-09-16 | 2013-04-25 | Mitsubishi Electric Corp | 半導体レーザおよびその製造方法 |
JP5916414B2 (ja) * | 2012-02-09 | 2016-05-11 | 日本オクラロ株式会社 | 光半導体装置 |
US11927839B2 (en) * | 2020-09-14 | 2024-03-12 | Ii-Vi Delaware, Inc. | Broadband electro-absorption optical modulator using on-chip RF input signal termination |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5272191A (en) * | 1975-12-12 | 1977-06-16 | Matsushita Electric Ind Co Ltd | Semiconductor laser device |
JPH01302791A (ja) * | 1988-02-02 | 1989-12-06 | Nec Corp | 埋込み構造半導体レーザ |
JP2003114407A (ja) * | 2001-10-03 | 2003-04-18 | Nippon Telegr & Teleph Corp <Ntt> | 電界吸収型光変調器 |
JP2008277445A (ja) * | 2007-04-26 | 2008-11-13 | Opnext Japan Inc | 半導体レーザおよび光モジュール |
JP2009038120A (ja) * | 2007-07-31 | 2009-02-19 | Nec Corp | 半導体光集積素子およびその製造方法 |
JP2009059919A (ja) * | 2007-08-31 | 2009-03-19 | Sumitomo Electric Ind Ltd | 光半導体デバイス及びその作製方法 |
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DE60212755T2 (de) * | 2001-04-18 | 2006-11-16 | Nippon Telegraph And Telephone Corp. | Optische Halbleitervorrichtung und Herstellungsverfahren |
JP3825652B2 (ja) | 2001-04-18 | 2006-09-27 | 日本電信電話株式会社 | 半導体光素子 |
US6636539B2 (en) * | 2001-05-25 | 2003-10-21 | Novalux, Inc. | Method and apparatus for controlling thermal variations in an optical device |
JP2003060311A (ja) * | 2001-08-21 | 2003-02-28 | Nippon Telegr & Teleph Corp <Ntt> | 半導体光素子及びその製造方法 |
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- 2009-03-13 JP JP2009061093A patent/JP2010219102A/ja active Pending
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5272191A (en) * | 1975-12-12 | 1977-06-16 | Matsushita Electric Ind Co Ltd | Semiconductor laser device |
JPH01302791A (ja) * | 1988-02-02 | 1989-12-06 | Nec Corp | 埋込み構造半導体レーザ |
JP2003114407A (ja) * | 2001-10-03 | 2003-04-18 | Nippon Telegr & Teleph Corp <Ntt> | 電界吸収型光変調器 |
JP2008277445A (ja) * | 2007-04-26 | 2008-11-13 | Opnext Japan Inc | 半導体レーザおよび光モジュール |
JP2009038120A (ja) * | 2007-07-31 | 2009-02-19 | Nec Corp | 半導体光集積素子およびその製造方法 |
JP2009059919A (ja) * | 2007-08-31 | 2009-03-19 | Sumitomo Electric Ind Ltd | 光半導体デバイス及びその作製方法 |
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