JP5161767B2 - スペックルの減少を伴う広帯域レーザランプ - Google Patents
スペックルの減少を伴う広帯域レーザランプ Download PDFInfo
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- JP5161767B2 JP5161767B2 JP2008514238A JP2008514238A JP5161767B2 JP 5161767 B2 JP5161767 B2 JP 5161767B2 JP 2008514238 A JP2008514238 A JP 2008514238A JP 2008514238 A JP2008514238 A JP 2008514238A JP 5161767 B2 JP5161767 B2 JP 5161767B2
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
- H01S3/09415—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode the pumping beam being parallel to the lasing mode of the pumped medium, e.g. end-pumping
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
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- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08059—Constructional details of the reflector, e.g. shape
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/1601—Solid materials characterised by an active (lasing) ion
- H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
- H01S3/1608—Solid materials characterised by an active (lasing) ion rare earth erbium
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/17—Solid materials amorphous, e.g. glass
- H01S3/173—Solid materials amorphous, e.g. glass fluoride glass, e.g. fluorozirconate or ZBLAN [ ZrF4-BaF2-LaF3-AlF3-NaF]
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- 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2383—Parallel arrangements
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- 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2383—Parallel arrangements
- H01S3/2391—Parallel arrangements emitting at different wavelengths
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- 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
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- 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
- H01S5/0235—Method for mounting laser chips
- H01S5/02355—Fixing laser chips on mounts
- H01S5/0237—Fixing laser chips on mounts by soldering
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/065—Mode locking; Mode suppression; Mode selection ; Self pulsating
- H01S5/0651—Mode control
- H01S5/0652—Coherence lowering or collapse, e.g. multimode emission by additional input or modulation
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- 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
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/32—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
- H01S5/323—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/32308—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm
- H01S5/32341—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm blue laser based on GaN or GaP
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- Semiconductor Lasers (AREA)
Description
a) 二色性鏡を傾斜すること、
b) ブラッグ格子を傾斜すること、
c) ブラッグ格子の屈折率を電気光学的に変更すること、
d) ファブリーペロ鏡の屈折率を電気光学的に変更すること、
e) ファブリーペロ鏡の距離を変更すること
を含む。
a) 励起放射線を生成する少なくとも1つの半導体ダイオードレーザ又はレーザバー又はスタック、
b) 励起放射線を再循環し且つマルチモード動作を強化する本発明に従った少なくとも1つの光共振器、
c) 発光がその後に続く光子吸収エネルギー移転のアップコンバージョンプロセスによって励起放射線を可視波長に変換し、マルチモード動作を強化する前記マルチモード光共振器内に配置される少なくとも1つのアップコンバージョン材料、又は、発光がその後に続く光子吸収のダウンコンバージョンプロセスによって励起放射線を可視波長に変換し、マルチモード動作を強化する前記マルチモード光共振器内に配置される少なくとも1つのダウンコンバージョン材料を含む。
− コンバージョン材料と呼ぶアップコンバージョン又はダウンコンバージョン材料は、コンバージョン材料の屈折率よりも小さい屈折率の2つの導波管層の間に配置される。
− コンバージョン材料及び2つの導波管層の全体的な厚さは、半導体ダイオードレーザ中の発光層の厚さよりも少なくとも1μm厚い。
− レーザダイオード又はレーザダイオードバー及びコンバージョン材料は、同一の基板上に或いは別個の基板上にそれぞれ配置される。
− マルチモード動作を強化する光共振器の間に挟装されるレーザダイオード又はレーザダイオードバー及びコンバージョン材料は、隣接して配置されることによって、隣接して配置されるダイオードレーザ又はダイオードレーザバー及びコンバージョン材料の間の間隙が形成される。
− マルチモード動作を強化する光共振器の間に挟装されるレーザダイオード又はレーザダイオードバー及びコンバージョン材料は、接触して配置される。
− 投影用途系
− 光学用途系
− 医療照明用途系
− 自動車用途系
Claims (9)
- スペックル雑音の減少を伴う可視放射線を放射する導波管レーザのレーザ共振器であって、当該共振器は、可視放射線発光レイジング材料の両端にある少なくとも1つの鏡又は2つの鏡によって形成され、当該共振器は、マルチモード動作を強化するので、前記可視放射線発光レイジング材料がスペクトル的に広げられた可視放射線を放射し、該スペクトル的に広げられた可視放射線の包絡関数は、1nm〜15nm内の半値全幅を有し、
当該共振器は、隣接するレイジング材料の断面表面領域に亘って変動する最大反射率を有する少なくとも1つのブラッグ格子を含み、前記反射率が前記レイジング材料に面する前記ブラッグ格子の表面に沿って変化するように、前記ブラッグ格子は平行線を有さない、
レーザ共振器。 - 当該共振器は、前記レイジング材料に面するその表面に沿って変化する反射率を備える二色性塗膜を有する少なくとも1つの鏡を含み、前記二色性塗膜は、厚さ勾配を有する、請求項1に記載のレーザ共振器。
- 当該共振器は、それらの波長最大に対してシフトされる複数の異なる可視放射線を示すファブリーペロ空洞を含む、請求項1又は2に記載のレーザ共振器。
- 少なくとも、前記光共振器の少なくとも1つの鏡の位置、屈折率、及び/又は、角度は、一時的に変更され、少なくとも1つの鏡の位置、屈折率、及び/又は、角度は、≧25Hzの周波数で一時的に変更され、少なくとも1つの鏡の前記変更は、
a) 二色性鏡を傾斜すること、
b) ブラッグ格子を傾斜すること、
c) ブラッグ格子の屈折率を電気光学的に変更すること、
d) ファブリーペロ鏡の屈折率を電気光学的に変更すること、
e) ファブリーペロ鏡の距離を変更すること
を含む、請求項1乃至3のうちのいずれか1項に記載のレーザ共振器。 - 前記可視放射線発光レイジング材料は、440nm〜470nmの範囲内の青色放射線、515nm〜550nmの範囲内の緑色放射線、及び、610nm〜680nmの範囲内の赤色放射線で構成される群から選択される原色を発光する、請求項1乃至4のうちのいずれか1項に記載のレーザ共振器。
- 請求項1乃至5のうちのいずれか1項に記載のレーザ共振器を備える少なくとも1つのレーザを含む広帯域レーザ装置であって、請求項1乃至5のうちのいずれか1項に記載のレーザ共振器を備える複数のレーザを含む広帯域レーザ装置。
- 前記レーザのうちの少なくとも1つは、導波管レーザ、アップコンバージョン繊維レーザ、アップコンバージョン固体レーザ、ダウンコンバージョン繊維レーザ、ダウンコンバージョン固体レーザ、又は、半導体ダイオードレーザである、請求項6に記載の広帯域レーザ装置。
- 前記導波管レーザの素子は、僅かに異なるスペクトル的に広げられた可視放射線を有し、該スペクトル的に広げられた可視放射線の包絡関数は、1nm〜15nm内の半値全幅を有することによって、前記導波管レーザは、集合波長を創成し、スペクトル的に広げられた可視放射線の前記集合の包絡関数は、5nm〜15nm内の半値全幅を有する、
請求項6又は7に記載の広帯域レーザ装置。 - 以下の用途のうちの1つにおける使用のために設計される、
− 投影用途系
− 光学用途系
− 医療照明用途系
− 自動車用途
請求項1乃至5のうちのいずれか1項に記載の少なくとも1つのレーザ共振器又は請求項6乃至8のいずれか一項に記載の広帯域レーザ装置を含む照明装置。
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EP05104665.4 | 2005-05-31 | ||
EP05104665 | 2005-05-31 | ||
PCT/IB2006/051531 WO2006129211A2 (en) | 2005-05-31 | 2006-05-16 | Broadband laser lamp with reduced speckle |
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JP2008543073A JP2008543073A (ja) | 2008-11-27 |
JP5161767B2 true JP5161767B2 (ja) | 2013-03-13 |
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JP2008514238A Expired - Fee Related JP5161767B2 (ja) | 2005-05-31 | 2006-05-16 | スペックルの減少を伴う広帯域レーザランプ |
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US (1) | US7620091B2 (ja) |
EP (1) | EP1891719A2 (ja) |
JP (1) | JP5161767B2 (ja) |
CN (1) | CN101185210B (ja) |
TW (1) | TWI446012B (ja) |
WO (1) | WO2006129211A2 (ja) |
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CN1497801A (zh) * | 2002-10-16 | 2004-05-19 | 伊斯曼柯达公司 | 可连接外部激发光束光源的有机激光器 |
JP4165179B2 (ja) | 2002-10-21 | 2008-10-15 | ソニー株式会社 | 照明装置及び画像表示装置 |
US6947459B2 (en) | 2002-11-25 | 2005-09-20 | Eastman Kodak Company | Organic vertical cavity laser and imaging system |
US6950454B2 (en) * | 2003-03-24 | 2005-09-27 | Eastman Kodak Company | Electronic imaging system using organic laser array illuminating an area light valve |
ATE416497T1 (de) * | 2003-08-29 | 2008-12-15 | Koninkl Philips Electronics Nv | Wellenleiterlaserlichtquelle geeignet zur verwendung in projektionsanzeigen |
US20060176478A1 (en) * | 2005-02-09 | 2006-08-10 | Raman Systems, Inc. | Raman spectroscopy with stabilized multi-mode lasers |
WO2006105258A2 (en) * | 2005-03-30 | 2006-10-05 | Novalux, Inc. | Manufacturable vertical extended cavity surface emitting laser arrays |
-
2006
- 2006-05-16 JP JP2008514238A patent/JP5161767B2/ja not_active Expired - Fee Related
- 2006-05-16 CN CN2006800191233A patent/CN101185210B/zh not_active Expired - Fee Related
- 2006-05-16 EP EP06755990A patent/EP1891719A2/en not_active Withdrawn
- 2006-05-16 US US11/915,413 patent/US7620091B2/en not_active Expired - Fee Related
- 2006-05-16 WO PCT/IB2006/051531 patent/WO2006129211A2/en not_active Application Discontinuation
- 2006-05-26 TW TW095118947A patent/TWI446012B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1891719A2 (en) | 2008-02-27 |
TWI446012B (zh) | 2014-07-21 |
WO2006129211A3 (en) | 2007-07-12 |
WO2006129211A2 (en) | 2006-12-07 |
TW200708764A (en) | 2007-03-01 |
CN101185210A (zh) | 2008-05-21 |
JP2008543073A (ja) | 2008-11-27 |
CN101185210B (zh) | 2010-10-06 |
US20080212639A1 (en) | 2008-09-04 |
US7620091B2 (en) | 2009-11-17 |
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