JP6213915B2 - 半導体レーザ素子 - Google Patents
半導体レーザ素子 Download PDFInfo
- Publication number
- JP6213915B2 JP6213915B2 JP2013202086A JP2013202086A JP6213915B2 JP 6213915 B2 JP6213915 B2 JP 6213915B2 JP 2013202086 A JP2013202086 A JP 2013202086A JP 2013202086 A JP2013202086 A JP 2013202086A JP 6213915 B2 JP6213915 B2 JP 6213915B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- diffraction grating
- roundness
- aspect ratio
- semiconductor laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08004—Construction or shape of optical resonators or components thereof incorporating a dispersive element, e.g. a prism for wavelength selection
- H01S3/08009—Construction or shape of optical resonators or components thereof incorporating a dispersive element, e.g. a prism for wavelength selection using a diffraction grating
-
- 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
- H01S5/04—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
-
- 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
- H01S5/10—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
- H01S5/11—Comprising a photonic bandgap structure
-
- 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
- H01S5/10—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
- H01S5/1231—Grating growth or overgrowth details
-
- 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
- H01S5/10—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
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
-
- 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
- H01S5/10—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
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- H01S5/18308—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL] having a special structure for lateral current or light confinement
- H01S5/18319—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL] having a special structure for lateral current or light confinement comprising a periodical structure in lateral directions
-
- 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
- H01S5/10—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
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/185—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only horizontal cavities, e.g. horizontal cavity surface-emitting lasers [HCSEL]
-
- 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
- H01S5/10—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
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/185—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only horizontal cavities, e.g. horizontal cavity surface-emitting lasers [HCSEL]
- H01S5/187—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only horizontal cavities, e.g. horizontal cavity surface-emitting lasers [HCSEL] using Bragg reflection
-
- 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
- H01S2301/00—Functional characteristics
- H01S2301/14—Semiconductor lasers with special structural design for lasing in a specific polarisation mode
-
- 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
- H01S5/04—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
- H01S5/04254—Electrodes, e.g. characterised by the structure characterised by the shape
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Semiconductor Lasers (AREA)
Description
(1)丸み(K1であり以下同様)が0.00×格子定数(格子定数は上記説明ではaと表されている場合がある、以下同様)、フィリングファクタ(K3であり以下同様)が10%以上25%以下、縦横比(K2であり以下同様)が1.00以上1.16以下;
(2)丸みが0.00×格子定数、フィリングファクタが15%以上25%以下、縦横比が1.16以上1.20以下;
(3)丸みが0.05×格子定数、フィリングファクタが9%以上24%以下、縦横比が1.00以上1.20以下;
(4)丸みが0.10×格子定数、フィリングファクタが10%以上22%以下、縦横比が1.00以上1.08以下;
(5)丸みが0.10×格子定数、フィリングファクタが10%以上21%以下、縦横比が1.08以上1.12以下;
(6)丸みが0.10×格子定数、フィリングファクタが10%以上18%以下、縦横比が1.12以上1.20以下;
(7)丸みが0.15×格子定数、フィリングファクタが11%以上22%以下、縦横比が1.00以上1.08以下;
(8)丸みが0.15×格子定数、フィリングファクタが11%以上21%以下、縦横比が1.08以上1.16以下;
(9)丸みが0.15×格子定数、フィリングファクタが11%以上20%以下、縦横比が1.16以上1.20以下;
(10)丸みが0.20×格子定数、フィリングファクタが13%以上22%以下、縦横比が1.00以上1.20以下。
上記の条件(1)〜(10)の縦横比(K2)は、回折格子6baの全ての単位格子R3aで共通していれば、図3に示す単位格子R3aの孔部6bのh/b又はb/hの何れであってもよい。
Claims (5)
- 半導体積層を備え、
前記半導体積層は、
支持基体と、第1のクラッド層と、活性層と、回折格子層と、第2のクラッド層とを備え、
前記第1のクラッド層と、前記活性層と、前記回折格子層と、前記第2のクラッド層とは、前記支持基体の主面の上に設けられ、
前記活性層と前記回折格子層とは、前記第1のクラッド層と前記第2のクラッド層との間に設けられ、
前記活性層は、光を発生し、
前記第2のクラッド層は、前記第1のクラッド層の導電型とは異なった導電型を備え、
前記回折格子層は、回折格子を備え、
前記回折格子は、正方格子配置の2次元フォトニック結晶構造を備え、
前記2次元フォトニック結晶構造は、複数の孔部を備え、前記主面に沿って延在し、
前記複数の孔部は、同一の形状を備え、前記回折格子の正方格子に沿って配置され、
前記孔部は、前記回折格子の格子点に対応し、
前記孔部の底面の形状は、略直角三角形であり、
前記孔部は、前記回折格子の母材の屈折率とは異なった屈折率を備え、
前記活性層の発光によって前記回折格子に生じる電磁界の節は、前記孔部の略直角三角形の重心と、略同じ位置にあり、
前記電磁界における磁界の強度の極値は、前記孔部の周囲に存在し、
前記孔部の略直角三角形は、第1の辺と第2の辺とを備え、
前記第1の辺と前記第2の辺とは、直角を成し、
前記孔部の略直角三角形の三つの頂点は、当該略直角三角形の中にある基準円の円周に重なるように丸められており、
前記孔部の略直角三角形の形状は、下記(1)〜(9)の条件、
(1)丸みが0.00×格子定数、フィリングファクタが15%以上25%以下、縦横比が1.16以上1.20以下;
(2)丸みが0.05×格子定数、フィリングファクタが9%以上24%以下、縦横比が1.00以上1.20以下;
(3)丸みが0.10×格子定数、フィリングファクタが10%以上22%以下、縦横比が1.00以上1.08以下;
(4)丸みが0.10×格子定数、フィリングファクタが10%以上21%以下、縦横比が1.08以上1.12以下;
(5)丸みが0.10×格子定数、フィリングファクタが10%以上18%以下、縦横比が1.12以上1.20以下;
(6)丸みが0.15×格子定数、フィリングファクタが11%以上22%以下、縦横比が1.00以上1.08以下;
(7)丸みが0.15×格子定数、フィリングファクタが11%以上21%以下、縦横比が1.08以上1.16以下;
(8)丸みが0.15×格子定数、フィリングファクタが11%以上20%以下、縦横比が1.16以上1.20以下;
(9)丸みが0.20×格子定数、フィリングファクタが13%以上22%以下、縦横比が1.00以上1.20以下、
の何れかを満たし、
前記丸みは、前記基準円の半径であり、
前記格子定数は、前記回折格子の単位格子の一辺の長さであり、
前記フィリングファクタは、前記単位格子の面積において前記孔部の略直角三角形の面積の占める割合であり、
前記縦横比は、前記頂点が丸められていないとした場合の前記第1の辺の辺長と前記第2の辺の辺長との比である、
ことを特徴とする半導体レーザ素子。 - 前記半導体積層は、電子ブロック層を更に備え、
前記電子ブロック層は、前記第1のクラッド層と前記第2のクラッド層とにおいてp型の導電型を有する層と、前記活性層との間にある、
ことを特徴とする請求項1に記載の半導体レーザ素子。 - 前記回折格子層は、前記第1のクラッド層と前記第2のクラッド層とにおいてp型の導電型を有する層と、前記活性層との間にある、
ことを特徴とする請求項1又は請求項2に記載の半導体レーザ素子。 - 前記半導体積層の材料は、GaAsを含むIII−V族半導体である、
ことを特徴とする請求項1〜請求項3の何れか一項に記載の半導体レーザ素子。 - 前記底面は、第1の辺と第2の辺とを備え、
前記第1の辺と前記第2の辺とは、直角を成し、
前記第1の辺は、正方格子の一の格子ベクトルに対し、傾斜している、
ことを特徴とする請求項1〜請求項4の何れか一項に記載の半導体レーザ素子。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013202086A JP6213915B2 (ja) | 2013-03-04 | 2013-09-27 | 半導体レーザ素子 |
PCT/JP2014/054916 WO2014136653A1 (ja) | 2013-03-04 | 2014-02-27 | 半導体レーザ素子 |
DE112014001115.0T DE112014001115T5 (de) | 2013-03-04 | 2014-02-27 | Halbleiterlaserelement |
US14/771,911 US9583914B2 (en) | 2013-03-04 | 2014-02-27 | Semiconductor laser element |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013041973 | 2013-03-04 | ||
JP2013041973 | 2013-03-04 | ||
JP2013202086A JP6213915B2 (ja) | 2013-03-04 | 2013-09-27 | 半導体レーザ素子 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014197659A JP2014197659A (ja) | 2014-10-16 |
JP6213915B2 true JP6213915B2 (ja) | 2017-10-18 |
Family
ID=51491172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013202086A Active JP6213915B2 (ja) | 2013-03-04 | 2013-09-27 | 半導体レーザ素子 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9583914B2 (ja) |
JP (1) | JP6213915B2 (ja) |
DE (1) | DE112014001115T5 (ja) |
WO (1) | WO2014136653A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI791217B (zh) * | 2021-04-01 | 2023-02-01 | 富昱晶雷射科技股份有限公司 | 光子晶體面射型雷射元件 |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6427003B2 (ja) * | 2014-12-25 | 2018-11-21 | ヤマハ発動機株式会社 | 電子部品供給装置、リール装置、及び部品収納テープの補給方法 |
JP6581024B2 (ja) | 2016-03-15 | 2019-09-25 | 株式会社東芝 | 分布帰還型半導体レーザ |
JP6808336B2 (ja) * | 2016-03-15 | 2021-01-06 | 株式会社東芝 | 半導体レーザ装置 |
JP6182230B1 (ja) * | 2016-03-15 | 2017-08-16 | 株式会社東芝 | 面発光量子カスケードレーザ |
JP2017168591A (ja) * | 2016-03-15 | 2017-09-21 | 株式会社東芝 | 半導体レーザ装置 |
JP6868864B2 (ja) * | 2017-03-06 | 2021-05-12 | スタンレー電気株式会社 | 照明装置 |
JP6868865B2 (ja) * | 2017-03-06 | 2021-05-12 | スタンレー電気株式会社 | 照明装置 |
US11646546B2 (en) | 2017-03-27 | 2023-05-09 | Hamamatsu Photonics K.K. | Semiconductor light emitting array with phase modulation regions for generating beam projection patterns |
US11637409B2 (en) * | 2017-03-27 | 2023-04-25 | Hamamatsu Photonics K.K. | Semiconductor light-emitting module and control method therefor |
JP6959042B2 (ja) | 2017-06-15 | 2021-11-02 | 浜松ホトニクス株式会社 | 発光装置 |
JP6580097B2 (ja) | 2017-09-05 | 2019-09-25 | 株式会社東芝 | 面発光量子カスケードレーザ |
JP6774400B2 (ja) * | 2017-11-16 | 2020-10-21 | 株式会社東芝 | 面発光量子カスケードレーザ |
JP6818672B2 (ja) | 2017-11-16 | 2021-01-20 | 株式会社東芝 | 面発光量子カスケードレーザ |
WO2019111787A1 (ja) | 2017-12-08 | 2019-06-13 | 浜松ホトニクス株式会社 | 発光装置およびその製造方法 |
JP7173478B2 (ja) * | 2017-12-22 | 2022-11-16 | 国立大学法人京都大学 | 面発光レーザ素子及び面発光レーザ素子の製造方法 |
US11258233B2 (en) | 2017-12-27 | 2022-02-22 | Kabushiki Kaisha Toshiba | Quantum cascade laser |
JP7076414B2 (ja) * | 2019-08-23 | 2022-05-27 | 株式会社東芝 | 面発光量子カスケードレーザ |
CN113644547A (zh) * | 2021-08-09 | 2021-11-12 | 业成科技(成都)有限公司 | 光子晶体面射型激光结构 |
JP2023059111A (ja) | 2021-10-14 | 2023-04-26 | 国立研究開発法人物質・材料研究機構 | 面発光量子カスケードレーザ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4484134B2 (ja) * | 2003-03-25 | 2010-06-16 | 独立行政法人科学技術振興機構 | 2次元フォトニック結晶面発光レーザ |
WO2005086302A1 (ja) * | 2004-03-05 | 2005-09-15 | Kyoto University | 2次元フォトニック結晶面発光レーザ光源 |
JP2007258261A (ja) | 2006-03-20 | 2007-10-04 | Kyoto Univ | 2次元フォトニック結晶面発光レーザ |
US7991036B2 (en) * | 2007-06-28 | 2011-08-02 | Konica Minolta Holdings, Inc. | Two-dimensional photonic crystal plane emission laser |
TWI419427B (zh) * | 2009-08-21 | 2013-12-11 | Univ Nat Chiao Tung | 能帶邊緣型光子晶體雷射二極體 |
JP5488916B2 (ja) * | 2010-07-30 | 2014-05-14 | 浜松ホトニクス株式会社 | 半導体面発光素子及びその製造方法 |
JP5549011B2 (ja) * | 2010-07-30 | 2014-07-16 | 浜松ホトニクス株式会社 | 半導体面発光素子及びその製造方法 |
-
2013
- 2013-09-27 JP JP2013202086A patent/JP6213915B2/ja active Active
-
2014
- 2014-02-27 US US14/771,911 patent/US9583914B2/en active Active
- 2014-02-27 DE DE112014001115.0T patent/DE112014001115T5/de active Granted
- 2014-02-27 WO PCT/JP2014/054916 patent/WO2014136653A1/ja active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI791217B (zh) * | 2021-04-01 | 2023-02-01 | 富昱晶雷射科技股份有限公司 | 光子晶體面射型雷射元件 |
Also Published As
Publication number | Publication date |
---|---|
US9583914B2 (en) | 2017-02-28 |
WO2014136653A1 (ja) | 2014-09-12 |
US20160020581A1 (en) | 2016-01-21 |
DE112014001115T5 (de) | 2015-12-24 |
JP2014197659A (ja) | 2014-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6213915B2 (ja) | 半導体レーザ素子 | |
JP6202572B2 (ja) | 半導体レーザモジュール | |
CN111448725B (zh) | 发光装置及其制造方法 | |
CN105720479B (zh) | 一种具有光束扩散结构的高速半导体激光器 | |
JPS5972141A (ja) | 光デバイスの製作方法 | |
US7668219B2 (en) | Surface emitting semiconductor device | |
JP6513626B2 (ja) | フォトニック結晶内蔵基板およびその製造方法、並びに面発光量子カスケードレーザ | |
WO2021081697A1 (zh) | 二维拓扑光子晶体腔及其设计方法和在激光器中的应用 | |
Crump et al. | High-power, high-efficiency monolithic edge-emitting GaAs-based lasers with narrow spectral widths | |
JP5904571B2 (ja) | 端面発光型半導体レーザ素子 | |
JP4310297B2 (ja) | 2次元フォトニック結晶面発光レーザ光源 | |
Ryu et al. | Beam stability of buried-heterostructure quantum cascade lasers employing HVPE regrowth | |
US20190148911A1 (en) | Techniques for providing curved facet semiconductor lasers | |
JP2019106398A (ja) | 発光装置 | |
Itoh et al. | High-power with single-lobe beam of 1.3-μm InP-based double-lattice photonic-crystal surface-emitting lasers | |
Alias et al. | Loss analysis of high order modes in photonic crystal vertical-cavity surface-emitting lasers | |
CN115967011A (zh) | 发光装置及其制造方法 | |
US20230369825A1 (en) | Semiconductor laser element | |
JP2009283639A (ja) | 面発光レーザ素子およびその製造方法 | |
Shterengas et al. | CW room temperature operation of the GaSb-based photonic crystal surface emitting diode lasers | |
Susa | Threshold gain and single-mode oscillation of two-dimensional photonic bandgap defect lasers | |
JPS58158988A (ja) | 分布帰還形半導体レ−ザ | |
Chang et al. | Planarized process for resonant leaky-wave coupled phase-locked arrays of mid-IR quantum cascade lasers | |
Palmquist et al. | Demonstration of III-nitride vertical-cavity surface-emitting lasers with a topside dielectric curved mirror | |
Wang | Surface Emitting Semiconductor Laser Thermal and Radiation Analysis |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20160530 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20160530 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170516 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170713 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20170905 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20170911 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6213915 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |