JP2011249618A - 半導体レーザ - Google Patents
半導体レーザ Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 55
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000005253 cladding Methods 0.000 description 21
- 239000010408 film Substances 0.000 description 20
- 239000000758 substrate Substances 0.000 description 14
- 238000001228 spectrum Methods 0.000 description 11
- 230000031700 light absorption Effects 0.000 description 10
- 230000010355 oscillation Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 239000013078 crystal Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010282 TiON Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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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
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
- H01S5/0625—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in multi-section lasers
- H01S5/06255—Controlling the frequency of the radiation
- H01S5/06258—Controlling the frequency of the radiation with DFB-structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/026—Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers
- H01S5/0265—Intensity modulators
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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
- H01S5/02—Structural details or components not essential to laser action
- H01S5/028—Coatings ; Treatment of the laser facets, e.g. etching, passivation layers or reflecting layers
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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
- H01S5/04256—Electrodes, e.g. characterised by the structure characterised by the configuration
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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
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/0607—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature
- H01S5/0612—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by temperature
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
- H01S5/0625—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in multi-section lasers
- H01S5/06255—Controlling the frequency of the radiation
- H01S5/06256—Controlling the frequency of the radiation with DBR-structure
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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
- H01S5/12—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 the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
- H01S5/1206—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 the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers having a non constant or multiplicity of periods
- H01S5/1209—Sampled grating
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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
- H01S5/12—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 the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
- H01S5/1206—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 the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers having a non constant or multiplicity of periods
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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
- H01S5/12—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 the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
- H01S5/1206—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 the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers having a non constant or multiplicity of periods
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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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- Semiconductor Lasers (AREA)
Abstract
【解決手段】 半導体レーザは、両端が回折格子によって挟まれたスペース部と回折格子部とが連結されたセグメントが複数設けられた第1反射器と、前記第1反射器に対応して設けられた導波路とを備え、前記導波路は、前記セグメントのうち隣接する2つのセグメントの両方にまたがって延在する利得領域と、前記セグメントのうち隣接する2つのセグメントの両方にまたがって延在する屈折率可変領域とを有している。
【選択図】 図1
Description
L22 > L21 (8)
L11 = 2×L21 (9)
L12 = 2×L22 (10)
2 下クラッド層
3 導波路コア
4 上クラッド層
5 コンタクト層
6 絶縁膜
7 利得制御用電極
8 屈折率調整用電極
9 回折格子
10 裏面電極
11,12 AR膜
50 HR膜
100 半導体レーザ
Claims (7)
- 両端が回折格子によって挟まれたスペース部と回折格子部とが連結されたセグメントが複数設けられた第1反射器と、
前記第1反射器に対応して設けられた導波路とを備え、
前記導波路は、前記セグメントのうち隣接する2つのセグメントの両方にまたがって延在する利得領域と、前記セグメントのうち隣接する2つのセグメントの両方にまたがって延在する屈折率可変領域とを有することを特徴とする半導体レーザ。 - 前記第1反射器における各セグメントに対応する前記利得領域の長さと前記屈折率可変領域の長さは、互いに等しいことを特徴とする請求項1記載の半導体レーザ。
- 前記各セグメントに対する前記利得領域の長さと前記屈折率可変領域の長さとの比は、1対0.4〜1.0であることを特徴とする請求項1記載の半導体レーザ。
- 前記第1反射器に光結合する第2反射器をさらに備え、
前記第2反射器は、回折格子部とスペース部とが連結されたセグメントが複数設けられてなることを特徴とする請求項1記載の半導体レーザ。 - 前記第2反射器の導波路は、前記セグメントのうち隣接する2つのセグメントの両方にまたがって延在する利得領域と、前記セグメントのうち隣接する2つのセグメントの両方にまたがって延在する屈折率可変領域とを有する請求項4記載の半導体レーザ。
- 前記第2反射器には、光学的長さが互いに異なるセグメントが設けられてなることを特徴とする請求項4記載の半導体レーザ。
- 前記第1反射器において、端部を除く全てのセグメントに対応する前記導波路には、前記隣接する2つのセグメントの両方にまたがって延在する利得領域と、前記隣接する2つのセグメントの両方にまたがって延在する屈折率可変領域とが設けられてなることを特徴とする請求項1記載の半導体レーザ。
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Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010122136A JP5499903B2 (ja) | 2010-05-27 | 2010-05-27 | 半導体レーザ |
US13/115,301 US9172212B2 (en) | 2010-05-27 | 2011-05-25 | Tunable semiconductor laser diode |
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JP2010122136A JP5499903B2 (ja) | 2010-05-27 | 2010-05-27 | 半導体レーザ |
Publications (2)
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JP2011249618A true JP2011249618A (ja) | 2011-12-08 |
JP5499903B2 JP5499903B2 (ja) | 2014-05-21 |
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JP2010122136A Active JP5499903B2 (ja) | 2010-05-27 | 2010-05-27 | 半導体レーザ |
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US (1) | US9172212B2 (ja) |
JP (1) | JP5499903B2 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014013823A (ja) * | 2012-07-04 | 2014-01-23 | Sumitomo Electric Ind Ltd | 波長可変半導体レーザの制御方法 |
JP2015002210A (ja) * | 2013-06-13 | 2015-01-05 | 住友電工デバイス・イノベーション株式会社 | 波長可変レーザ装置 |
US9935426B2 (en) | 2013-06-27 | 2018-04-03 | Sumitomo Electric Industries, Ltd. | Optical semiconductor device |
WO2022211061A1 (ja) * | 2021-03-31 | 2022-10-06 | 住友電工デバイス・イノベーション株式会社 | 波長可変レーザ |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6186864B2 (ja) * | 2012-05-18 | 2017-08-30 | 住友電気工業株式会社 | 半導体レーザ |
JP6241919B2 (ja) * | 2013-09-30 | 2017-12-06 | 住友電工デバイス・イノベーション株式会社 | 光学半導体デバイス |
US9997890B2 (en) | 2015-10-28 | 2018-06-12 | Rockley Photonics Limited | Discrete wavelength tunable laser |
US9627851B1 (en) | 2015-10-28 | 2017-04-18 | Rockley Photonics Limited | Discrete wavelength tunable laser |
US11128102B2 (en) * | 2017-09-07 | 2021-09-21 | Mitsubishi Electric Corporation | Semiconductor optical device |
Citations (6)
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JPH07273400A (ja) * | 1994-03-30 | 1995-10-20 | Nippon Telegr & Teleph Corp <Ntt> | 半導体レーザ |
JPH08172243A (ja) * | 1994-12-17 | 1996-07-02 | Canon Inc | 光伝送装置及びその変調方式 |
JP2004343043A (ja) * | 2003-05-15 | 2004-12-02 | Korea Electronics Telecommun | 広帯域波長可変抽出格子分布帰還型レーザダイオード |
JP2006295103A (ja) * | 2005-03-17 | 2006-10-26 | Fujitsu Ltd | 波長可変レーザ |
JP2007048988A (ja) * | 2005-08-11 | 2007-02-22 | Eudyna Devices Inc | 半導体レーザ、レーザモジュール、光学部品、レーザ装置、半導体レーザの製造方法および半導体レーザの制御方法 |
JP2008103466A (ja) * | 2006-10-18 | 2008-05-01 | Nippon Telegr & Teleph Corp <Ntt> | 半導体レーザ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US7653093B2 (en) * | 2001-09-10 | 2010-01-26 | Imec | Widely tunable twin guide laser structure |
KR100541913B1 (ko) * | 2003-05-02 | 2006-01-10 | 한국전자통신연구원 | 추출 격자 브래그 반사기와 결합된 추출 격자 분포궤환파장가변 반도체 레이저 |
US7366220B2 (en) * | 2005-03-17 | 2008-04-29 | Fujitsu Limited | Tunable laser |
JP5365510B2 (ja) * | 2007-03-06 | 2013-12-11 | 富士通株式会社 | 半導体集積素子 |
-
2010
- 2010-05-27 JP JP2010122136A patent/JP5499903B2/ja active Active
-
2011
- 2011-05-25 US US13/115,301 patent/US9172212B2/en active Active
Patent Citations (6)
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JPH07273400A (ja) * | 1994-03-30 | 1995-10-20 | Nippon Telegr & Teleph Corp <Ntt> | 半導体レーザ |
JPH08172243A (ja) * | 1994-12-17 | 1996-07-02 | Canon Inc | 光伝送装置及びその変調方式 |
JP2004343043A (ja) * | 2003-05-15 | 2004-12-02 | Korea Electronics Telecommun | 広帯域波長可変抽出格子分布帰還型レーザダイオード |
JP2006295103A (ja) * | 2005-03-17 | 2006-10-26 | Fujitsu Ltd | 波長可変レーザ |
JP2007048988A (ja) * | 2005-08-11 | 2007-02-22 | Eudyna Devices Inc | 半導体レーザ、レーザモジュール、光学部品、レーザ装置、半導体レーザの製造方法および半導体レーザの制御方法 |
JP2008103466A (ja) * | 2006-10-18 | 2008-05-01 | Nippon Telegr & Teleph Corp <Ntt> | 半導体レーザ |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014013823A (ja) * | 2012-07-04 | 2014-01-23 | Sumitomo Electric Ind Ltd | 波長可変半導体レーザの制御方法 |
JP2015002210A (ja) * | 2013-06-13 | 2015-01-05 | 住友電工デバイス・イノベーション株式会社 | 波長可変レーザ装置 |
US9935426B2 (en) | 2013-06-27 | 2018-04-03 | Sumitomo Electric Industries, Ltd. | Optical semiconductor device |
WO2022211061A1 (ja) * | 2021-03-31 | 2022-10-06 | 住友電工デバイス・イノベーション株式会社 | 波長可変レーザ |
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Publication number | Publication date |
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JP5499903B2 (ja) | 2014-05-21 |
US20110292955A1 (en) | 2011-12-01 |
US9172212B2 (en) | 2015-10-27 |
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