JP7527271B2 - 光学部品および半導体レーザモジュール - Google Patents
光学部品および半導体レーザモジュール Download PDFInfo
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- JP7527271B2 JP7527271B2 JP2021505099A JP2021505099A JP7527271B2 JP 7527271 B2 JP7527271 B2 JP 7527271B2 JP 2021505099 A JP2021505099 A JP 2021505099A JP 2021505099 A JP2021505099 A JP 2021505099A JP 7527271 B2 JP7527271 B2 JP 7527271B2
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- 239000004065 semiconductor Substances 0.000 title claims description 57
- 238000005253 cladding Methods 0.000 claims description 177
- 239000013307 optical fiber Substances 0.000 claims description 105
- 239000000463 material Substances 0.000 claims description 46
- 239000006096 absorbing agent Substances 0.000 claims description 27
- 239000000853 adhesive Substances 0.000 description 14
- 230000001070 adhesive effect Effects 0.000 description 14
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- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 239000011521 glass Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
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- 238000005452 bending Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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- 239000000126 substance Substances 0.000 description 2
- 239000002470 thermal conductor Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 229910000679 solder Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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Images
Classifications
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- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
- G02B6/4203—Optical features
-
- 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
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
-
- 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
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2552—Splicing of light guides, e.g. by fusion or bonding reshaping or reforming of light guides for coupling using thermal heating, e.g. tapering, forming of a lens on light guide ends
-
- 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
- G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
- G02B6/266—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting the optical element being an attenuator
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/421—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
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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
- H01S5/022—Mountings; Housings
- H01S5/02218—Material of the housings; Filling of the housings
-
- 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
- H01S5/022—Mountings; Housings
- H01S5/023—Mount members, e.g. sub-mount members
- H01S5/02325—Mechanically integrated components on mount members or optical micro-benches
- H01S5/02326—Arrangements for relative positioning of laser diodes and optical components, e.g. grooves in the mount to fix optical fibres or lenses
-
- 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
- H01S5/024—Arrangements for thermal management
- H01S5/02438—Characterized by cooling of elements other than the laser chip, e.g. an optical element being part of an external cavity or a collimating lens
-
- 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
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4012—Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms
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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
- H01S5/022—Mountings; Housings
- H01S5/02208—Mountings; Housings characterised by the shape of the housings
- H01S5/02216—Butterfly-type, i.e. with electrode pins extending horizontally from the housings
-
- 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
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02251—Out-coupling of light using optical fibres
-
- 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
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02253—Out-coupling of light using lenses
-
- 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
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02255—Out-coupling of light using beam deflecting elements
-
- 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
- H01S5/024—Arrangements for thermal management
- H01S5/02469—Passive cooling, e.g. where heat is removed by the housing as a whole or by a heat pipe without any active cooling element like a TEC
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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
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
- H01S5/4031—Edge-emitting structures
- H01S5/4043—Edge-emitting structures with vertically stacked active layers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optical Couplings Of Light Guides (AREA)
Description
図1は、実施形態1に係る光学部品を備えた半導体レーザモジュールの模式的な平面図である。半導体レーザモジュール100は、筐体であるパッケージ101と、パッケージ101の内部に順に積載されたLD高さ調整板102と、サブマウント103-1~103-6と、6つの半導体レーザ素子104-1~104-6とを備える。パッケージ101は、蓋を備えるが、図1においては説明のために図示を省略している。半導体レーザモジュール100は、半導体レーザ素子104-1~104-6に電流を注入するリードピン105を備える。そして、半導体レーザモジュール100は、半導体レーザ素子104-1~104-6が出力するレーザ光の光路上に順に配置された光学素子である、第1レンズ106-1~106-6と、第2レンズ107-1~107-6と、ミラー108-1~108-6と、第3レンズ109と、光フィルタ110と、第4レンズ111とを備える。第1レンズ106-1~106-6、第2レンズ107-1~107-6、ミラー108-1~108-6、第3レンズ109、光フィルタ110、第4レンズ111は、それぞれパッケージ101の内部に固定されている。さらに、半導体レーザモジュール100は、第4レンズ111と対向して配置された光学部品10と、光学部品10に融着接続などで接続された光ファイバ112とを備える。光ファイバ112の光学部品10に接続された側とは反対側の一端は、パッケージ101の外部に延伸している。
つぎに、光学部品10の構成について具体的に説明する。図2は、光学部品10および光ファイバ112の模式的な断面図である。
図6は、実施形態2に係る光学部品20および光ファイバ112の模式的な断面図である。光学部品20は、たとえば半導体レーザモジュール100において光学部品10と置き換えて用いることができる。
図9は、実施形態3に係る光学部品30および光ファイバ112の模式的な断面図である。光学部品30は、たとえば半導体レーザモジュール100において光学部品10と置き換えて用いることができる。
図10は、実施形態4に係る光学部品40の模式的な断面図である。光学部品40は、たとえば半導体レーザモジュール100において光学部品10および光ファイバ112と置き換えて用いることができる。
11、21、41、112 光ファイバ
11a、21a、41a、112a コア部
11b、21b、41b、112b クラッド部
11ba、21ba、41ba 主部
11bb、21bb、41bb 入力側端部
11bc、21bc 出力側端部
11c、14aa、21c、41c、44aa 入力端面
11d、14ba、21d、44ba 出力端面
12、22、42 固着材
13、23、43 光吸収体
14、44 エンドキャップ
14a 入力部
14b 出力部
41d、112c 被覆
100 半導体レーザモジュール
101 パッケージ
102 LD高さ調整板
103-1~103-6 サブマウント
104-1~104-6 半導体レーザ素子
105 リードピン
106-1~106-6 第1レンズ
107-1~107-6 第2レンズ
108-1~108-6 ミラー
109 第3レンズ
110 光フィルタ
111 第4レンズ
113 ブーツ
114 ルースチューブ
Aa、Ba、Ca コア径
Aba、Bba、Cba 主部クラッド径
Abb、Bbb 入力端面クラッド径
Abc、Bbc 出力端面クラッド径
C1、C2 輪郭
L1、L1a、L1b、L1c、L1d、L1e、L1f、L1g、L1h、L1i、L1j、L1m、L1n、L2 レーザ光
Claims (7)
- コア部と、前記コア部の外周に形成されたクラッド部とを有する光ファイバと、
前記光ファイバの外周に配置された光吸収体と、
前記光吸収体と前記光ファイバとを固着する固着材と、
を備え、
前記クラッド部は、長手方向に延伸し、主部クラッド径を有する主部と、前記主部に対して光の入力側に位置する入力側端部とを有し、
前記入力側端部の入力端面における入力端面クラッド径は、前記コア部のコア径の1.1倍以上でありかつ前記主部クラッド径より小さく、
前記入力側端部は、クラッド径が前記主部クラッド径から前記入力端面クラッド径にほぼ等しい径まで変化するテーパ状であることを特徴とする光学部品。 - 前記入力端面クラッド径は前記コア部のコア径の1.1倍以上1.4倍以下であることを特徴とする請求項1に記載の光学部品。
- 前記クラッド部は、前記主部に対して光の出力側に位置する出力側端部を有し、前記出力側端部の出力端面における出力端面クラッド径が前記主部クラッド径よりも小さいことを特徴とする請求項1または2に記載の光学部品。
- 前記光ファイバの前記入力端面に接続された、前記光ファイバの前記入力端面よりも面積が大きい入力端面を有するエンドキャップを備えることを特徴とする請求項1~3のいずれか一つに記載の光学部品。
- 前記主部クラッド径は125μmよりも大きいことを特徴とする請求項1~4のいずれか一つに記載の光学部品。
- 前記主部クラッド径は500μm以上であることを特徴とする請求項1~5のいずれか一つに記載の光学部品。
- 請求項1~6のいずれか一つに記載の光学部品と、
半導体レーザ素子と、
前記半導体レーザ素子から出力されたレーザ光を前記光学部品の前記入力端面に導く光学系と、
を備えることを特徴とする半導体レーザモジュール。
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JP2019045001 | 2019-03-12 | ||
JP2019045001 | 2019-03-12 | ||
PCT/JP2020/010460 WO2020184603A1 (ja) | 2019-03-12 | 2020-03-11 | 光学部品および半導体レーザモジュール |
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JPWO2020184603A1 JPWO2020184603A1 (ja) | 2020-09-17 |
JP7527271B2 true JP7527271B2 (ja) | 2024-08-02 |
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US (1) | US20210373256A1 (ja) |
EP (1) | EP3940899A4 (ja) |
JP (1) | JP7527271B2 (ja) |
KR (1) | KR20210136012A (ja) |
CN (1) | CN113474954B (ja) |
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US11789203B2 (en) * | 2021-06-07 | 2023-10-17 | Mellanox Technologies, Ltd. | Coupling element with embedded modal filtering for a laser and/or photodiode |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050196108A1 (en) | 2002-02-22 | 2005-09-08 | Brown Joe D. | Apparatus and method for coupling laser energy into small core fibers |
US20120262938A1 (en) | 2011-04-15 | 2012-10-18 | Nlight Photonics Corporation | Cladding mode spatial filter |
WO2015037725A1 (ja) | 2013-09-12 | 2015-03-19 | 古河電気工業株式会社 | 半導体レーザモジュール |
WO2017134911A1 (ja) | 2016-02-03 | 2017-08-10 | 古河電気工業株式会社 | レーザ装置 |
JP2017223897A (ja) | 2016-06-17 | 2017-12-21 | 三菱電線工業株式会社 | 光コネクタ構造 |
JP2019028414A (ja) | 2017-07-28 | 2019-02-21 | ファインガラステクノロジーズ株式会社 | 光ファイバ構造物 |
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US9318876B1 (en) * | 2015-01-22 | 2016-04-19 | Trumpf Photonics, Inc. | Arrangement of multiple diode laser module and method for operating the same |
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US20050196108A1 (en) | 2002-02-22 | 2005-09-08 | Brown Joe D. | Apparatus and method for coupling laser energy into small core fibers |
US20120262938A1 (en) | 2011-04-15 | 2012-10-18 | Nlight Photonics Corporation | Cladding mode spatial filter |
WO2015037725A1 (ja) | 2013-09-12 | 2015-03-19 | 古河電気工業株式会社 | 半導体レーザモジュール |
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EP3940899A4 (en) | 2022-11-30 |
US20210373256A1 (en) | 2021-12-02 |
KR20210136012A (ko) | 2021-11-16 |
JPWO2020184603A1 (ja) | 2020-09-17 |
CN113474954B (zh) | 2024-03-22 |
WO2020184603A1 (ja) | 2020-09-17 |
CN113474954A (zh) | 2021-10-01 |
EP3940899A1 (en) | 2022-01-19 |
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