JP6687060B2 - 光導波路、それを用いた光部品および波長可変レーザ - Google Patents
光導波路、それを用いた光部品および波長可変レーザ Download PDFInfo
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- JP6687060B2 JP6687060B2 JP2018108283A JP2018108283A JP6687060B2 JP 6687060 B2 JP6687060 B2 JP 6687060B2 JP 2018108283 A JP2018108283 A JP 2018108283A JP 2018108283 A JP2018108283 A JP 2018108283A JP 6687060 B2 JP6687060 B2 JP 6687060B2
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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
- H01S5/10—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
- H01S5/14—External cavity lasers
- H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
- H01S5/142—External cavity lasers using a wavelength selective device, e.g. a grating or etalon which comprises an additional resonator
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29331—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by evanescent wave coupling
- G02B6/29335—Evanescent coupling to a resonator cavity, i.e. between a waveguide mode and a resonant mode of the cavity
- G02B6/29338—Loop resonators
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29331—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by evanescent wave coupling
- G02B6/29335—Evanescent coupling to a resonator cavity, i.e. between a waveguide mode and a resonant mode of the cavity
- G02B6/29338—Loop resonators
- G02B6/29341—Loop resonators operating in a whispering gallery mode evanescently coupled to a light guide, e.g. sphere or disk or cylinder
-
- 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
- H01S5/1028—Coupling to elements in the cavity, e.g. coupling to waveguides adjacent the active region, e.g. forward coupled [DFC] structures
- H01S5/1032—Coupling to elements comprising an optical axis that is not aligned with the optical axis of the active region
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12083—Constructional arrangements
- G02B2006/121—Channel; buried or the like
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1228—Tapered waveguides, e.g. integrated spot-size transformers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Optical Integrated Circuits (AREA)
- Semiconductor Lasers (AREA)
Description
本発明に係る第1の実施形態について説明する。本実施形態に係る光導波路の透過斜視図を図1に示す。図1において、光導波路100は、クラッド部材110およびシリコン扁平光導波路120によって構成される。
第2の実施形態について説明する。本実施形態では、第1の実施形態で説明したシリコン扁平光導波路120を備えたSiフォトニクス素子を外部共振器として用いた波長可変レーザを適用する。本実施形態に係る波長可変レーザは、PLC等の平面光導波路により光共振器を構成するとともに、PLC上にレーザーダイオード(LD:laser diode)若しくはSOAを直接実装することによって構成される。
110 クラッド部材
120 シリコン扁平光導波路
200 波長可変レーザ
300 Siフォトニクス素子
310 シリコン基板
320 クラッド部材
330、340、350 シリコン扁平光導波路
360、370 シリコン扁平リング導波路
400 SOA
900 光導波路
910 クラッド部材
920 シリコン細線光導波路
Claims (8)
- クラッドと、
前記クラッドの内部に配置され、断面形状が長方形型の長尺体に形成され、前記クラッドを構成する材料よりも屈折率の高い材料により構成されるコアと、を備えるSOI導波路であり、
前記コアは、
接続する導波路素子との光の入出力端に向けて断面の横方向の長さが縮小するテーパ形状に形成されていることによって、前記入出力端における光のビーム径を前記導波路素子における光のビーム径に調整する端部領域と、
断面の横方向の長さが縦方向の長さの10倍以上であり、当該縦方向の長さは前記入出力端における断面の縦方向の長さである扁平領域と、を有する
ことを特徴とする光導波路。 - 前記端部領域は、前記入出力端に向けて断面の横方向の長さが線形に縮小するテーパ形状に形成される
ことを特徴とする請求項1に記載の光導波路。 - 前記端部領域は、前記入出力端に向けて断面の横方向の長さが指数関数的に縮小するテーパ形状に形成される
ことを特徴とする請求項1に記載の光導波路。 - 前記扁平領域は、断面の横方向の長さが0.9μmより大きくて1.2μmよりも小さく、断面の縦方向の長さが0.04μmより大きくて0.06μmよりも小さい
ことを特徴とする請求項1から3のいずれかに記載の光導波路。 - 前記導波路素子は、化合物半導体の光素子に設けられる光導波路である
ことを特徴とする請求項1から4のいずれかに記載の光導波路。 - 前記クラッドの内部に配置され、前記クラッドを構成する材料よりも屈折率の高い材料により構成され、リング状に形成されるリング状コアをさらに備える
ことを特徴とする請求項1から5のいずれかに記載の光導波路。 - 第1のリング状コアと第2のリング状コアとを備え、
前記第1のリング状コアと前記第2のリング状コアは円周長が互いに異なる
ことを特徴とする請求項1から6のいずれかに記載の光導波路。 - 前記入出力端に無反射コーティングが施されている
ことを特徴とする請求項1から7のいずれかに記載の光導波路。
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JP2018108283A Active JP6687060B2 (ja) | 2014-03-07 | 2018-06-06 | 光導波路、それを用いた光部品および波長可変レーザ |
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US (2) | US9899799B2 (ja) |
JP (2) | JP6693866B2 (ja) |
CN (1) | CN106068470B (ja) |
WO (1) | WO2015133093A1 (ja) |
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WO2015133093A1 (ja) * | 2014-03-07 | 2015-09-11 | 日本電気株式会社 | 光導波路、それを用いた光部品および波長可変レーザ |
US9577780B2 (en) | 2014-06-26 | 2017-02-21 | Luxtera, Inc. | Method and system for a polarization immune wavelength division multiplexing demultiplexer |
JP6973480B2 (ja) * | 2017-05-08 | 2021-12-01 | ソニーグループ株式会社 | レーザ装置組立体 |
EP4224647A1 (en) * | 2018-11-02 | 2023-08-09 | Huawei Technologies Co., Ltd. | Optical amplifier |
US10935720B2 (en) | 2019-04-29 | 2021-03-02 | Ii-Vi Delaware, Inc. | Laser beam product parameter adjustments |
US11971573B2 (en) | 2022-06-06 | 2024-04-30 | Taiwan Semiconductor Manufacturing Company, Ltd. | Multi-layer waveguide optical coupler |
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JP3766953B2 (ja) | 2000-09-13 | 2006-04-19 | 日本電信電話株式会社 | 光回路 |
US6890450B2 (en) * | 2001-02-02 | 2005-05-10 | Intel Corporation | Method of providing optical quality silicon surface |
JP3976514B2 (ja) * | 2001-04-05 | 2007-09-19 | 日本電気株式会社 | 光導波路の製造方法 |
JP3815271B2 (ja) * | 2001-08-02 | 2006-08-30 | 日本電気株式会社 | 光結合器 |
US20090122817A1 (en) * | 2005-09-06 | 2009-05-14 | Nec Corporation | Variable-wavelength filter and variable-wavelength laser |
JP4942429B2 (ja) | 2006-09-04 | 2012-05-30 | 日本電信電話株式会社 | 半導体波長可変レーザ |
WO2008111447A1 (ja) | 2007-03-14 | 2008-09-18 | Nec Corporation | 光導波路及びその製造方法 |
WO2013021421A1 (ja) * | 2011-08-10 | 2013-02-14 | 富士通株式会社 | 半導体光素子 |
WO2015133093A1 (ja) * | 2014-03-07 | 2015-09-11 | 日本電気株式会社 | 光導波路、それを用いた光部品および波長可変レーザ |
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WO2015133093A1 (ja) | 2015-09-11 |
US9899799B2 (en) | 2018-02-20 |
JP6693866B2 (ja) | 2020-05-13 |
US20180138659A1 (en) | 2018-05-17 |
US10263392B2 (en) | 2019-04-16 |
JP2018156104A (ja) | 2018-10-04 |
CN106068470A (zh) | 2016-11-02 |
JPWO2015133093A1 (ja) | 2017-04-06 |
US20170018907A1 (en) | 2017-01-19 |
CN106068470B (zh) | 2020-01-31 |
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