JP7308948B2 - レーザー素子及びその製造方法 - Google Patents
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- 238000004519 manufacturing process Methods 0.000 title claims description 32
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- 238000005530 etching Methods 0.000 claims description 11
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- 230000004888 barrier function Effects 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 238000005859 coupling reaction Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
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- 229910004205 SiNX Inorganic materials 0.000 description 1
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- 229910052682 stishovite Inorganic materials 0.000 description 1
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- H01S5/2004—Confining in the direction perpendicular to the layer structure
- H01S5/2018—Optical confinement, e.g. absorbing-, reflecting- or waveguide-layers
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
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- H01S5/0203—Etching
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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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- 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
- H01S5/1003—Waveguide having a modified shape along the axis, e.g. branched, curved, tapered, voids
- H01S5/1014—Tapered waveguide, e.g. spotsize converter
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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
- H01S5/1053—Comprising an active region having a varying composition or cross-section in a specific direction
- H01S5/1064—Comprising an active region having a varying composition or cross-section in a specific direction varying width along the optical axis
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- 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
- H01S5/227—Buried mesa structure ; Striped active layer
- H01S5/2275—Buried mesa structure ; Striped active layer mesa created by etching
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
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- 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
- H01S5/0287—Facet reflectivity
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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
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- 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
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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
Claims (17)
- 第1クラッド層と、
前記第1クラッド層上に配置される光導波路と、
前記光導波路上に配置される第2クラッド層と、
前記第2クラッド層上に配置される第1電極と、
前記光導波路上に配置され、前記第2クラッド層及び前記第1電極と離隔して配置されるダミークラッドとを備え、
前記ダミークラッドは、前記ダミークラッドの厚さ方向において前記光導波路の活性層と重なっておらず、前記第2クラッド層と同じ厚さで、かつ、同じ組成であるレーザー素子。 - 前記ダミークラッドは、第1ダミークラッド及び第2ダミークラッドを備え、
前記第1ダミークラッドの面積は、前記第2ダミークラッドの面積より大きい請求項1に記載のレーザー素子。 - 前記第2クラッド層の厚さ、前記第1ダミークラッドの厚さ及び前記第2ダミークラッドの厚さは同一である、請求項2に記載のレーザー素子。
- 前記第1ダミークラッドの長さは、前記第2ダミークラッドの長さと同一である、請求項2に記載のレーザー素子。
- 前記第1電極は、前記第1ダミークラッドと前記第2ダミークラッドとの間に配置される、請求項2に記載のレーザー素子。
- 前記第1ダミークラッドと第2ダミークラッドの組成は、前記第2クラッド層の組成と同一である、請求項2に記載のレーザー素子。
- 前記第1ダミークラッドは、前記第2クラッド層の最大幅と同一であり、
前記第2ダミークラッドは、前記第2クラッド層の最小幅と同一である、請求項2に記載のレーザー素子。 - 前記ダミークラッドは、第1角に配置された第1ダミークラッド、第2角に配置された第2ダミークラッド、第4角に配置された第3ダミークラッド、及び第3角に配置された第4ダミークラッドを備え、
前記第1ダミークラッドと前記第3ダミークラッドの幅は同一であり、
前記第2ダミークラッドと前記第4ダミークラッドの幅は同一である、請求項1に記載のレーザー素子。 - 前記第1ダミークラッドの幅は、前記光導波路の最大幅の半分であり、
前記第2ダミークラッドの幅は、前記光導波路の最小幅の半分である、請求項8に記載のレーザー素子。 - 前記光導波路は、第1光導波路、及び前記第1光導波路を取り囲む第2光導波路を備える、請求項1に記載のレーザー素子。
- 前記第2クラッド層は、一方向に行くほど幅が細くなるように形成される、請求項1に記載のレーザー素子。
- 第1クラッド層上に第1光導波路を形成するステップと、
前記第1クラッド層上に第2光導波路を形成するステップと、
前記第1光導波路と前記第2光導波路上に第2クラッド層を形成するステップと、
前記第2クラッド層をエッチングして複数の第2クラッド層に分割するステップと、
複数のチップに切断するステップとを含み、
前記第2光導波路を形成するステップは、
前記第1光導波路をエッチングして複数の第1光導波路に分割し、前記第1光導波路がエッチングされた領域に第2光導波路を形成し、
前記複数の第1光導波路は、前記第2クラッド層の長手方向に互いにずらして配置され、
複数のチップに切断する際に、各チップ上に前記第2クラッド層のダミークラッドを形成し、
前記ダミークラッドは、前記ダミークラッドの厚さ方向において前記第1光導波路の活性層と重なっていない、レーザー素子の製造方法。 - 前記複数の第2クラッド層に分割するステップは、
前記第2クラッド層をエッチングして複数の第2クラッド層に分割し、
複数の第2クラッド層は、それぞれ前記複数の第1光導波路上に配置される、請求項12に記載のレーザー素子の製造方法。 - 複数の第2クラッド層は、長さ方向に互いにずらして配置される、請求項13に記載のレーザー素子の製造方法。
- 前記複数の第2クラッド層は、複数のチップ単位領域にそれぞれ配置され、
前記第2クラッド層の両端は、前記チップ単位領域の外側に延びる、請求項13に記載のレーザー素子の製造方法。 - 前記複数のチップに切断するステップで、
前記第2クラッド層の長さ方向と垂直な方向に切断するとき、前記複数の第2クラッド層の両末端が一部切断されるようにチップを分離する、請求項13に記載のレーザー素子の製造方法。 - 前記複数の第2クラッド層を形成するステップは、
前記第2クラッド層の一端の幅が細くなるように形成する、請求項12に記載のレーザー素子の製造方法。
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KR1020180147533A KR102068188B1 (ko) | 2018-11-26 | 2018-11-26 | 레이저 소자 및 그 제조방법 |
KR10-2018-0147533 | 2018-11-26 | ||
PCT/KR2018/014667 WO2020111287A1 (ko) | 2018-11-26 | 2018-11-27 | 레이저 소자 및 그 제조방법 |
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US (1) | US20220021187A1 (ja) |
EP (1) | EP3890129A4 (ja) |
JP (1) | JP7308948B2 (ja) |
KR (1) | KR102068188B1 (ja) |
CN (1) | CN113228435A (ja) |
WO (1) | WO2020111287A1 (ja) |
Citations (7)
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JP2005294297A (ja) | 2004-03-31 | 2005-10-20 | Sanyo Electric Co Ltd | 半導体素子の製造方法 |
JP2009044145A (ja) | 2007-07-18 | 2009-02-26 | Nichia Corp | 窒化物半導体レーザ素子の製造方法及び窒化物半導体レーザ素子 |
US20090296765A1 (en) | 2008-06-03 | 2009-12-03 | Toru Takayama | Semiconductor laser device |
US20110026554A1 (en) | 2007-07-18 | 2011-02-03 | Nichia Corporation | Nitride semiconductor laser element |
JP2012235069A (ja) | 2011-05-09 | 2012-11-29 | Furukawa Electric Co Ltd:The | 光集積素子の製造方法 |
US20160300979A1 (en) | 2013-10-24 | 2016-10-13 | Electronics And Telecommunications Research Institute | Superluminescent diode and method for implementing the same |
US20180301866A1 (en) | 2015-10-06 | 2018-10-18 | Osram Opto Semiconductors Gmbh | Semiconductor laser and semiconductor laser arrangement |
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JP5261857B2 (ja) * | 2001-09-21 | 2013-08-14 | 日本電気株式会社 | 端面発光型半導体レーザおよび半導体レーザ・モジュール |
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JP2009200478A (ja) * | 2008-01-21 | 2009-09-03 | Sanyo Electric Co Ltd | 半導体レーザ素子およびその製造方法 |
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-
2018
- 2018-11-26 KR KR1020180147533A patent/KR102068188B1/ko active IP Right Grant
- 2018-11-27 US US17/296,522 patent/US20220021187A1/en active Pending
- 2018-11-27 CN CN201880100537.1A patent/CN113228435A/zh active Pending
- 2018-11-27 JP JP2021529443A patent/JP7308948B2/ja active Active
- 2018-11-27 EP EP18941774.4A patent/EP3890129A4/en active Pending
- 2018-11-27 WO PCT/KR2018/014667 patent/WO2020111287A1/ko unknown
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JP2005294297A (ja) | 2004-03-31 | 2005-10-20 | Sanyo Electric Co Ltd | 半導体素子の製造方法 |
JP2009044145A (ja) | 2007-07-18 | 2009-02-26 | Nichia Corp | 窒化物半導体レーザ素子の製造方法及び窒化物半導体レーザ素子 |
US20110026554A1 (en) | 2007-07-18 | 2011-02-03 | Nichia Corporation | Nitride semiconductor laser element |
US20090296765A1 (en) | 2008-06-03 | 2009-12-03 | Toru Takayama | Semiconductor laser device |
CN101599617A (zh) | 2008-06-03 | 2009-12-09 | 松下电器产业株式会社 | 半导体激光器装置 |
JP2009295680A (ja) | 2008-06-03 | 2009-12-17 | Panasonic Corp | 半導体レーザ装置 |
JP2012235069A (ja) | 2011-05-09 | 2012-11-29 | Furukawa Electric Co Ltd:The | 光集積素子の製造方法 |
US20160300979A1 (en) | 2013-10-24 | 2016-10-13 | Electronics And Telecommunications Research Institute | Superluminescent diode and method for implementing the same |
US20180301866A1 (en) | 2015-10-06 | 2018-10-18 | Osram Opto Semiconductors Gmbh | Semiconductor laser and semiconductor laser arrangement |
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Publication number | Publication date |
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EP3890129A4 (en) | 2022-11-23 |
KR102068188B1 (ko) | 2020-02-18 |
US20220021187A1 (en) | 2022-01-20 |
JP2022508216A (ja) | 2022-01-19 |
CN113228435A (zh) | 2021-08-06 |
EP3890129A1 (en) | 2021-10-06 |
WO2020111287A1 (ko) | 2020-06-04 |
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