JP5919191B2 - 角度選択的なフィードバックを有する縦キャビティ面発光レーザー装置 - Google Patents
角度選択的なフィードバックを有する縦キャビティ面発光レーザー装置 Download PDFInfo
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- 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]
- H01S5/18386—Details of the emission surface for influencing the near- or far-field, e.g. a grating on the surface
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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
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Description
102 基板
201 レンズ
202 非球面レンズ
203 球面ミラー
204 球面レンズ
301 平坦なミラー
302 球面ミラー
303 反射コーティング
304 球面ミラー
305 グレーティング
306 マイクロプリズム・アレイ
307―308 自由な形状の表面を備える光学要素
401―405 距離
501―503 環形の輝度分布/ビームプロファイル
504 輝度分布/ビームプロファイル
601 光軸
Claims (12)
- レーザー装置であって、
光軸を有する少なくとも1つの広領域縦キャビティ面発光レーザーと、
前記広領域縦キャビティ面発光レーザーから発されるレーザー放射の角度選択的なフィードバックを供給する少なくとも1つの光学フィードバック要素であり、前記広領域縦キャビティ面発光レーザーから離れて配される前記光学フィードバック要素と、
を有するレーザー装置であって、
前記角度選択的なフィードバックは、前記光軸上で発されるレーザー放射よりも、前記光軸に対して0よりも大きい角度θにおいて発されるレーザー放射の少なくとも1つの部分の方が高く、及び
前記角度選択的なフィードバックは、作用平面におけるレーザー放射の輝度分布が前記光軸に関して点対称となるように、前記光軸上に発されるレーザー放射よりも、前記光軸に関して点対称であるレーザー放射の部分の方が高い
レーザー装置。 - 前記光学フィードバック要素は、空間的に変調された反射率を有する湾曲ミラーを有する、請求項1に記載のレーザー装置。
- 前記光学フィードバック要素は、少なくとも1つのレンズ及び平坦なミラーの組み合わせを有する、請求項1に記載のレーザー装置。
- 前記平坦なミラーが、空間的に変調された反射率を有する、請求項3に記載のレーザー装置。
- 前記光学フィードバック要素がグレーティングを有する、請求項1に記載のレーザー装置。
- 前記光学フィードバック要素がプリズムのアレイを有する、請求項1に記載のレーザー装置。
- 前記光学フィードバック要素が、前記角度選択的なフィードバックを供給するように成形される少なくとも1つの自由な形状の表面を有する光学要素を有する、請求項1に記載のレーザー装置。
- 前記光学フィードバック要素、又は前記光学フィードバック要素の構成要素が、前記広領域縦キャビティ面発光レーザーに結合されている又は前記レーザー装置の基板にモノリシック的に組み込まれている、請求項1に記載のレーザー装置。
- 前記広領域縦キャビティ面発光レーザーの外結合ミラーの反射率と高いフィードバックを供給する前記光学フィードバック要素の表面部分の反射率との積が、98%よりも大きいように、前記光学フィードバック要素が設計されている、請求項1に記載のレーザー装置。
- 同一の光学フィードバック要素を備える前記レーザーの幾つかは、アレイの形態で配され、前記光学フィードバック要素を通過した後の前記広領域縦キャビティ面発光レーザーのレーザー放射は、作用平面において重ね合わされるように共通のレンズにより収集される、請求項1に記載のレーザー装置。
- 作用平面において光軸に関して点対称である輝度分布の広領域縦キャビティ面発光レーザーのレーザー放射を安定化する方法であって、
この安定化は、前記広領域縦キャビティ面発光レーザーから発されるレーザー放射の角度選択的なフィードバックにより実施され、
光学フィードバック要素は、前記広領域縦キャビティ面発光レーザーから離れて配され、
前記角度選択的なフィードバックは、前記広領域縦キャビティ面発光レーザーの光軸に対して0よりも大きい角度θにおいて発されるレーザー放射の少なくとも1つの部分に関して、前記光学軸上に発されるレーザー放射よりも高く、及び
前記角度選択的なフィードバックは、前記光軸上に発されるレーザー放射よりも、前記光軸に関して点対称であるレーザー放射の部分の方が高い
方法。 - 前記角度選択的なフィードバックは、レーザー放射の少なくとも1つの環形の部分に関して、前記光軸上に発されるレーザー放射に関してよりも高く選択され、結果として遠視野の環形の輝度分布をもたらす、請求項11に記載の方法。
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EP09168319 | 2009-08-20 | ||
EP09168319.3 | 2009-08-20 | ||
PCT/IB2010/053686 WO2011021139A2 (en) | 2009-08-20 | 2010-08-16 | A vertical cavity surface emitting laser device with angular-selective feedback |
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JP2013502716A JP2013502716A (ja) | 2013-01-24 |
JP5919191B2 true JP5919191B2 (ja) | 2016-05-18 |
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JP2012525238A Expired - Fee Related JP5919191B2 (ja) | 2009-08-20 | 2010-08-16 | 角度選択的なフィードバックを有する縦キャビティ面発光レーザー装置 |
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US (1) | US9153941B2 (ja) |
EP (1) | EP2467910B1 (ja) |
JP (1) | JP5919191B2 (ja) |
KR (1) | KR101731249B1 (ja) |
CN (1) | CN102549858B (ja) |
WO (1) | WO2011021139A2 (ja) |
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JP2013502716A (ja) | 2013-01-24 |
WO2011021139A2 (en) | 2011-02-24 |
KR20120053044A (ko) | 2012-05-24 |
EP2467910A2 (en) | 2012-06-27 |
US9153941B2 (en) | 2015-10-06 |
WO2011021139A3 (en) | 2011-05-05 |
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KR101731249B1 (ko) | 2017-04-28 |
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