JP2007250896A - 半導体光素子 - Google Patents
半導体光素子 Download PDFInfo
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- 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
- H01S5/3235—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 emitting light at a wavelength longer than 1000 nm, e.g. InP-based 1300 nm and 1500 nm lasers
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- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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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
- H01S5/3211—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures characterised by special cladding layers, e.g. details on band-discontinuities
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- 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
- H01S5/3211—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures characterised by special cladding layers, e.g. details on band-discontinuities
- H01S5/3213—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures characterised by special cladding layers, e.g. details on band-discontinuities asymmetric clading layers
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- H—ELECTRICITY
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- 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
- H01S5/3235—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 emitting light at a wavelength longer than 1000 nm, e.g. InP-based 1300 nm and 1500 nm lasers
- H01S5/32358—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 emitting light at a wavelength longer than 1000 nm, e.g. InP-based 1300 nm and 1500 nm lasers containing very small amounts, usually less than 1%, of an additional III or V compound to decrease the bandgap strongly in a non-linear way by the bowing effect
- H01S5/32366—(In)GaAs with small amount of N
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- 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
- H01S5/34306—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 emitting light at a wavelength longer than 1000nm, e.g. InP based 1300 and 1500nm lasers
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Abstract
【解決手段】半導体光素子10は、第1導電型のGaAs基板12と、GaAs基板12上に設けられたIII−V族化合物半導体層14と、III−V族化合物半導体層14上に設けられた活性層16と、活性層16上に設けられた第2導電型の上部クラッド層18とを備える。III−V族化合物半導体層14のバンドギャップエネルギー(Eg2)は、GaAs基板12のバンドギャップエネルギー(Eg1)よりも大きい。活性層16のバンドギャップエネルギー(Eg3)は、GaAs基板12のバンドギャップエネルギー(Eg1)よりも小さい。III−V族化合物半導体層14の厚さは0.2μm以下である。
【選択図】図1
Description
図1は、第1実施形態に係る半導体光素子を模式的に示す断面図である。図1中には3次元空間を表すX軸、Y軸及びZ軸が示されている。また、図1中には、第1実施形態に係る半導体光素子のエネルギーバンド図についても併せて示されている。軸Egは、バンドギャップエネルギーの大きさを示す。
Al平均組成=(x1*d1*N1+x2*d2*N2)/(d1*N1+d2*N2)
Ga平均組成={(1-x1)*d1*N1+(1-x2)*d2*N2}/(d1*N1+d2*N2)
As平均組成=(1*d1*N1+1*d2*N2)/(d1*N1+d2*N2)=1
と計算され、本超格子層の等価的バンドギャップエネルギーは、上記平均組成で与えられるAlGaAsのバンドギャップエネルギーと同等になる。
図4は、第2実施形態に係る半導体光素子を模式的に示す断面図である。図4に示される半導体光素子10aは、第1実施形態に係る半導体光素子10の構成に加えて、活性層16とIII−V族化合物半導体層14との間に設けられた光閉じ込め層30と、活性層16と上部クラッド層18との間に設けられた光閉じ込め層32とを備える。光閉じ込め層30,32はアンドープのIII−V族化合物半導体からなることが好ましい。光閉じ込め層30は、第1導電型であってもよい。光閉じ込め層32は、第2導電型であってもよい。
図5は、第3実施形態に係る半導体光素子を模式的に示す斜視図である。図6は、図5に示されるVI−VI線に沿った断面図である。図5及び図6に示される半導体光素子10bは、第2実施形態に係る半導体光素子10aの構成において、上部クラッド層18がリッジ部19を有し、リッジ部19を埋め込むように上部クラッド層18とコンタクト層20との間に設けられた第1導電型(ここではn型とする)の電流ブロック領域38を更に備える。リッジ部19及び電流ブロック領域38によって、電流狭窄構造が形成される。また、活性層16は、量子井戸構造を有しており、交互に積層された井戸層34とバリア層36とを有する。
Claims (3)
- 第1導電型のGaAs基板と、
前記GaAs基板上に設けられたIII−V族化合物半導体層と、
前記III−V族化合物半導体層上に設けられた活性層と、
前記活性層上に設けられた第2導電型のクラッド層と、
を備え、
前記III−V族化合物半導体層のバンドギャップエネルギーは、前記GaAs基板のバンドギャップエネルギーよりも大きく、
前記活性層のバンドギャップエネルギーは、前記GaAs基板のバンドギャップエネルギーよりも小さく、
前記III−V族化合物半導体層の厚さは0.2μm以下である、半導体光素子。 - 前記III−V族化合物半導体層は、アンドープのIII−V族化合物半導体からなる、請求項1に記載の半導体光素子。
- 前記III−V族化合物半導体層は、交互に積層された第1の半導体層及び第2の半導体層を含み、
前記第1の半導体層のバンドギャップエネルギーは、前記第2の半導体層のバンドギャップエネルギーとは異なっている、請求項1又は2に記載の半導体光素子。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006073266A JP2007250896A (ja) | 2006-03-16 | 2006-03-16 | 半導体光素子 |
US11/716,682 US7579630B2 (en) | 2006-03-16 | 2007-03-12 | Semiconductor optical device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006073266A JP2007250896A (ja) | 2006-03-16 | 2006-03-16 | 半導体光素子 |
Publications (1)
Publication Number | Publication Date |
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JP2007250896A true JP2007250896A (ja) | 2007-09-27 |
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JP2006073266A Pending JP2007250896A (ja) | 2006-03-16 | 2006-03-16 | 半導体光素子 |
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US (1) | US7579630B2 (ja) |
JP (1) | JP2007250896A (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090173956A1 (en) | 2007-12-14 | 2009-07-09 | Philips Lumileds Lighting Company, Llc | Contact for a semiconductor light emitting device |
US8421433B2 (en) | 2010-03-31 | 2013-04-16 | Maxim Integrated Products, Inc. | Low noise bandgap references |
CN110304761A (zh) * | 2019-06-28 | 2019-10-08 | 招商局生态环保科技有限公司 | 一种六价铬淋洗废液处置自动化控制系统 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10126004A (ja) * | 1996-08-27 | 1998-05-15 | Ricoh Co Ltd | 半導体発光素子及び半導体発光素子の製造方法 |
JPH1174607A (ja) * | 1997-06-23 | 1999-03-16 | Sharp Corp | 半導体レーザ装置 |
JP2001024282A (ja) * | 1999-07-09 | 2001-01-26 | Hitachi Ltd | Iii−v族混晶半導体を用いた半導体装置の製造方法及び光通信システム |
JP2003017812A (ja) * | 2001-04-25 | 2003-01-17 | Furukawa Electric Co Ltd:The | 半導体レーザ素子 |
JP2004179209A (ja) * | 2002-11-25 | 2004-06-24 | Sony Corp | 半導体レーザ素子 |
JP2005039045A (ja) * | 2003-07-14 | 2005-02-10 | Hamamatsu Photonics Kk | 量子カスケードレーザ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0637355A (ja) | 1992-07-20 | 1994-02-10 | Nippon Telegr & Teleph Corp <Ntt> | Iii−v族合金半導体およびその製造方法 |
CA2112319C (en) * | 1992-12-28 | 1999-01-05 | Ichiro Yoshida | Semiconductor laser having an algainp cladding layer |
DE69425186T3 (de) * | 1993-04-28 | 2005-04-14 | Nichia Corp., Anan | Halbleitervorrichtung aus einer galliumnitridartigen III-V-Halbleiterverbindung und Verfahren zu ihrer Herstellung |
JP2639358B2 (ja) * | 1994-02-28 | 1997-08-13 | 日本電気株式会社 | 接合型fet |
JPH09213918A (ja) * | 1996-02-01 | 1997-08-15 | Furukawa Electric Co Ltd:The | 光電子集積回路素子 |
JP2005051124A (ja) * | 2003-07-30 | 2005-02-24 | Sumitomo Electric Ind Ltd | 面発光型半導体素子 |
JP2005217091A (ja) | 2004-01-29 | 2005-08-11 | Japan Science & Technology Agency | 混晶半導体とその製造方法およびそれを用いた半導体レーザ装置 |
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2006
- 2006-03-16 JP JP2006073266A patent/JP2007250896A/ja active Pending
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2007
- 2007-03-12 US US11/716,682 patent/US7579630B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10126004A (ja) * | 1996-08-27 | 1998-05-15 | Ricoh Co Ltd | 半導体発光素子及び半導体発光素子の製造方法 |
JPH1174607A (ja) * | 1997-06-23 | 1999-03-16 | Sharp Corp | 半導体レーザ装置 |
JP2001024282A (ja) * | 1999-07-09 | 2001-01-26 | Hitachi Ltd | Iii−v族混晶半導体を用いた半導体装置の製造方法及び光通信システム |
JP2003017812A (ja) * | 2001-04-25 | 2003-01-17 | Furukawa Electric Co Ltd:The | 半導体レーザ素子 |
JP2004179209A (ja) * | 2002-11-25 | 2004-06-24 | Sony Corp | 半導体レーザ素子 |
JP2005039045A (ja) * | 2003-07-14 | 2005-02-10 | Hamamatsu Photonics Kk | 量子カスケードレーザ |
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US7579630B2 (en) | 2009-08-25 |
US20070215904A1 (en) | 2007-09-20 |
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