JP4897526B2 - レーザモジュールの光軸調整方法 - Google Patents
レーザモジュールの光軸調整方法 Download PDFInfo
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- JP4897526B2 JP4897526B2 JP2007076087A JP2007076087A JP4897526B2 JP 4897526 B2 JP4897526 B2 JP 4897526B2 JP 2007076087 A JP2007076087 A JP 2007076087A JP 2007076087 A JP2007076087 A JP 2007076087A JP 4897526 B2 JP4897526 B2 JP 4897526B2
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- JP
- Japan
- Prior art keywords
- waveguide
- spot
- optical system
- axis
- light
- Prior art date
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Classifications
-
- 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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
- G02B6/4225—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements by a direct measurement of the degree of coupling, e.g. the amount of light power coupled to the fibre or the opto-electronic element
-
- 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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
- G02B6/4227—Active alignment methods, e.g. procedures and algorithms
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/37—Non-linear optics for second-harmonic generation
- G02F1/377—Non-linear optics for second-harmonic generation in an optical waveguide structure
- G02F1/3775—Non-linear optics for second-harmonic generation in an optical waveguide structure with a periodic structure, e.g. domain inversion, for quasi-phase-matching [QPM]
-
- 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
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
-
- 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
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
- H01S5/0092—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for nonlinear frequency conversion, e.g. second harmonic generation [SHG] or sum- or difference-frequency generation outside the laser cavity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Description
レーザ素子と、
導波路を有する高調波発生用の光導波路素子と、
レーザ素子からの光を集めて、光導波路素子の導波路に入射させる集光光学系と、
該集光光学系によるスポット位置を、3次元方向に位置決めするためのアクチュエータ機構とを備え、
アクチュエータ機構は、3軸制御のスムーズインパクト駆動機構で構成されたレーザモジュールの光軸調整方法であって、
光導波路素子の光出力側に受光素子を配置し、導波路から出射される基本波及び/又は第2高調波の光の強度を計測する計測ステップと、
導波路が該集光光学系で集光されるスポットの範囲内に存在しておらず、該受光素子で計測される出射光の強度が所定の判定値以下である場合、アクチュエータ機構を用いて、集光光学系による導波路入射端面におけるスポット径を拡大し、スポット位置を光軸方向に調整するデフォーカスステップと、
次に、アクチュエータ機構を用いて、集光光学系によるスポット位置を鉛直方向および水平方向に調整する調芯ステップと、
次に、アクチュエータ機構を用いて、集光光学系によるスポット位置を光軸方向に調整する合焦ステップと、を含むことを特徴とする。
L1〜L3 レンズ
SHG 光導波路素子
BS ビームスプリッタ
PD フォトダイオード
M1,M2 アクチュエータ
BR ブラケット
CX x軸移動体
CY y軸移動体
CZ z軸移動体
LS レンズ
LH レンズホルダ
Claims (2)
- レーザ素子と、
導波路を有する高調波発生用の光導波路素子と、
レーザ素子からの光を集めて、光導波路素子の導波路に入射させる集光光学系と、
該集光光学系によるスポット位置を、3次元方向に位置決めするためのアクチュエータ機構とを備え、
アクチュエータ機構は、3軸制御のスムーズインパクト駆動機構で構成されたレーザモジュールの光軸調整方法であって、
光導波路素子の光出力側に受光素子を配置し、導波路から出射される基本波及び/又は第2高調波の光の強度を計測する計測ステップと、
導波路が該集光光学系で集光されるスポットの範囲内に存在しておらず、該受光素子で計測される出射光の強度が所定の判定値以下である場合、アクチュエータ機構を用いて、集光光学系による導波路入射端面におけるスポット径を拡大し、スポット位置を光軸方向に調整するデフォーカスステップと、
次に、アクチュエータ機構を用いて、集光光学系によるスポット位置を鉛直方向および水平方向に調整する調芯ステップと、
次に、アクチュエータ機構を用いて、集光光学系によるスポット位置を光軸方向に調整する合焦ステップと、を含むことを特徴とするレーザモジュールの光軸調整方法。 - 前記デフォーカスステップの後、導波路が該集光光学系で集光されるスポットの範囲内に存在しておらず、該受光素子で計測される出射光の強度が所定の判定値以下である場合、アクチュエータ機構を用いて、集光光学系によるスポット位置を鉛直方向および水平方向に走査し、導波路が該集光光学系で集光されるスポットの範囲内に存在しておらず、該受光素子で計測される出射光の強度が所定の判定値より大きくなる位置を探索する走査ステップをさらに含むことを特徴とする請求項1記載のレーザモジュールの光軸調整方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007076087A JP4897526B2 (ja) | 2007-03-23 | 2007-03-23 | レーザモジュールの光軸調整方法 |
US12/049,568 US20090059976A1 (en) | 2007-03-23 | 2008-03-17 | Laser module and method for adjusting optical axis of the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007076087A JP4897526B2 (ja) | 2007-03-23 | 2007-03-23 | レーザモジュールの光軸調整方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008233731A JP2008233731A (ja) | 2008-10-02 |
JP4897526B2 true JP4897526B2 (ja) | 2012-03-14 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007076087A Expired - Fee Related JP4897526B2 (ja) | 2007-03-23 | 2007-03-23 | レーザモジュールの光軸調整方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20090059976A1 (ja) |
JP (1) | JP4897526B2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100272134A1 (en) * | 2009-04-22 | 2010-10-28 | Blanding Douglass L | Rapid Alignment Methods For Optical Packages |
TWI523720B (zh) | 2009-05-28 | 2016-03-01 | 伊雷克托科學工業股份有限公司 | 應用於雷射處理工件中的特徵的聲光偏轉器及相關雷射處理方法 |
US7899096B1 (en) * | 2009-10-30 | 2011-03-01 | Corning Incorporated | Methods and circuits for controlling drive mechanisms |
WO2011059107A1 (en) * | 2009-11-11 | 2011-05-19 | Sumitomo Electric Industries, Ltd. | Optical module having focused optical coupling system for single fiber |
KR101973660B1 (ko) | 2010-10-22 | 2019-04-30 | 일렉트로 싸이언티픽 인더스트리이즈 인코포레이티드 | 빔 디더링 및 스카이빙을 위한 레이저 처리 시스템 및 방법 |
TW201716167A (zh) * | 2011-08-18 | 2017-05-16 | 奧寶科技有限公司 | 用於電路之檢測/維修/再檢測系統及雷射寫入系統 |
JP6340902B2 (ja) * | 2014-05-13 | 2018-06-13 | 住友電気工業株式会社 | 光モジュールの製造方法 |
CN107138854A (zh) * | 2017-07-12 | 2017-09-08 | 上海柏楚电子科技有限公司 | 一种光斑直径和焦点位置可调的激光加工头及其控制方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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IT1170643B (it) * | 1981-01-22 | 1987-06-03 | Selenia Ind Elettroniche | Dispositivo perfezionato per l'accoppiamento di un fascio laser ad una fibra ottica |
JPH02213823A (ja) * | 1989-02-15 | 1990-08-24 | Fuji Photo Film Co Ltd | 光波長変換装置 |
JPH04326311A (ja) * | 1991-04-26 | 1992-11-16 | Sony Corp | 光導波路端面結合装置 |
JPH05343709A (ja) * | 1992-06-08 | 1993-12-24 | Sumitomo Electric Ind Ltd | ピッグテール型光モジュールの製造方法 |
JP3362477B2 (ja) * | 1993-10-29 | 2003-01-07 | ソニー株式会社 | 光導波路端面結合装置 |
US5511140A (en) * | 1994-10-13 | 1996-04-23 | International Business Machines Corporation | Molded plastic optical fiber-optoelectronic converter subassembly |
US20020054428A1 (en) * | 2000-07-21 | 2002-05-09 | Seward George H. | Method and system for aligning and optical system via single axis adjustments |
JP2002095272A (ja) * | 2000-09-11 | 2002-03-29 | Minolta Co Ltd | 駆動装置 |
JP2003107295A (ja) * | 2001-09-28 | 2003-04-09 | Opnext Japan Inc | 光伝送モジュール |
US6876790B2 (en) * | 2002-05-17 | 2005-04-05 | Science & Engineering Services, Inc. | Method of coupling a laser signal to an optical carrier |
JP3954434B2 (ja) * | 2002-05-22 | 2007-08-08 | ペンタックス株式会社 | 光通信装置 |
US7043118B2 (en) * | 2002-05-22 | 2006-05-09 | Pentax Corporation | Optical communication apparatus |
JP2005077436A (ja) * | 2003-08-29 | 2005-03-24 | Precise Gauges Co Ltd | 調芯方法及びその装置、並びに、これを用いた光学モジュールの製造方法及びその装置 |
JP4557869B2 (ja) * | 2005-11-18 | 2010-10-06 | 株式会社日立製作所 | 光ディスク種別判別方法、光ディスク装置 |
-
2007
- 2007-03-23 JP JP2007076087A patent/JP4897526B2/ja not_active Expired - Fee Related
-
2008
- 2008-03-17 US US12/049,568 patent/US20090059976A1/en not_active Abandoned
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Publication number | Publication date |
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JP2008233731A (ja) | 2008-10-02 |
US20090059976A1 (en) | 2009-03-05 |
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