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1. 发明申请

WO2018233799A1 PASSIVE COMPENSATION OF CONVECTION-INDUCED MISALIGNMENT IN OPTICAL RESONATORS 审中-公开
公开(公告)号：WO2018233799A1
公开(公告)日：2018-12-27
申请号：PCT/EP2017/000722
申请日：2017-06-21
申请人： UNIVERSITÄT STUTTGART
发明人： DIETRICH, Tom , PIEHLER, Stefan , RÖCKER, Christoph
IPC分类号： H01S3/08 , H01S3/081 , H01S3/04 , H01S3/16 , H01S3/042 , H01S3/06
CPC分类号： H01S3/0404 , H01S3/0405 , H01S3/042 , H01S3/0604 , H01S3/08045 , H01S3/08072 , H01S3/0812 , H01S3/0817 , H01S3/1618 , H01S3/1631
摘要： Optical resonator (1) for guiding a light in a laser cavity between a first cavity end mirror (2) and a second cavity end mirror (3) such that within the laser cavity the light passes through a light transmission surface (4) between a gain element (5) and a gaseous phase (6) where a density gradient of gas in the gaseous phase along the transmission surface (4) due to convection of the gas driven by heating of the gain element (5) causes a refraction of the light within a light deviation plane, the optical resonator (1) comprising: - the first cavity end mirror (2); - the gain element (5) comprising a laser gain medium (7) supporting stimulated emission of light at a wavelength λ L ; and - the second cavity end mirror (3) comprising a grating surface (8) with a diffraction grating (9) having a plurality of parallel grating lines (10) arranged at a grating period Λ, wherein the second cavity end mirror (3) is arranged to fulfil the following conditions: -- light within the light deviation plane enters the grating surface (8) in a light incident plane perpendicular to the grating surface (8); -- the grating lines (10) are perpendicular to the light incident plane; and -- an incident angle θ L (11) of the light at the grating surface (8) meets the condition (A) for a diffraction order (B).

2. 发明申请

WO2015124216A1 GRATING MIRROR 审中-公开
标题翻译：雕刻镜
公开(公告)号：WO2015124216A1
公开(公告)日：2015-08-27
申请号：PCT/EP2014/053547
申请日：2014-02-24
申请人： UNIVERSITÄT STUTTGART INSTITUT FÜR STRAHLWERKZEUGE
发明人： RUMPEL, Martin , ABDOU-AHMED, Marwan
IPC分类号： G02B5/08 , G02B5/09 , H01S3/04
CPC分类号： G02B5/1861 , H01S3/0057 , H01S3/0812 , H01S3/109
摘要： Grating mirror is provided, said grating mirror comprises a substrate having a first and a second surface on opposite sides thereof,a reflector arranged on the first surface of said substrate and comprising a stack of reflector layers with high refractive index layers and low refractive index layers stacked in alternating arrangement, a grating arranged on a side of said reflector opposite to said substrate,said grating comprising a stack of grating layers with at least one high refractive index grating layer and at least one low refractive index grating layer stacked in alternating arrangement, said stack of grating layers having grooves etched from a top surface into said stack of grating layers with an etching depth between 40nm or more and 300nm or less in order to obtain a waveguide grating structure.
摘要翻译：提供了光栅镜，所述光栅镜包括在其相对侧上具有第一和第二表面的基板，布置在所述基板的第一表面上并包括具有高折射率层和低折射率层的反射器层的叠层堆叠在交替布置中，布置在所述反射器与所述基板相对的一侧上的光栅，所述光栅包括具有交替布置堆叠的至少一个高折射率光栅层和至少一个低折射率光栅层的光栅层堆叠，所述堆叠的光栅层具有从顶表面蚀刻到所述光栅层堆叠中的凹槽，蚀刻深度在40nm或更大至300nm或更小之间，以便获得波导光栅结构。

3. 发明申请

WO2009010043A3 PHASE SHIFTING DEVICE, AND LASER RESONATOR FOR GENERATING RADIALLY OR AZIMUTHALLY POLARIZED LASER RADIATION 审中-公开
标题翻译：相滑动装置和径向生产的激光谐振腔或水平偏振激光辐射
公开(公告)号：WO2009010043A3
公开(公告)日：2009-05-22
申请号：PCT/DE2008001136
申请日：2008-07-14
申请人： TRUMPF LASER & SYSTEMTECHNIK , UNIV STUTTGART , SCHULZ JOACHIM , VOSS ANDREAS , MARWAN ABDOU AHMED
发明人： SCHULZ JOACHIM , VOSS ANDREAS , MARWAN ABDOU AHMED
IPC分类号： H01S3/13 , H01S3/07 , H01S3/08
CPC分类号： H01S3/1308 , H01S3/076 , H01S3/08009 , H01S3/08068 , H01S3/0812 , H01S3/0816 , H01S3/1307
摘要： The invention relates to a phase shifting device (42') for stabilizing radially or azimuthally polarized laser radiation within a laser resonator (40') that comprises a polarizer device (42') for generating radially or azimuthally polarized laser radiation (3a, 3b). The phase shifting device (42') is designed to generate a phase difference (?f) ranging from about 30° to about 330°, preferably from about 70° to about 290°, especially preferably from about 160° to about 200°, particularly a phase difference (?f) of about 180° per revolution in the laser resonator (40') while having an axial symmetry. The invention further relates to a laser resonator (40') comprising such a phase shifting device (42').
摘要翻译：本发明涉及一种移相装置（42“），用于激光腔的内稳定径向或方位偏振光的激光辐射（40”），其特征在于上述激光谐振器（40“）（一个偏振片的装置（42”），用于产生径向或方位偏振光的激光辐射3a中，3B）。该相移装置（42“）被设计成使得它在每激光谐振器革命（40”）大约30°和大约330°之间的相位差（F）之间，优选在约70℃与约290℃ ，特别优选约160℃和200℃之间产生，特别是在径向和激光辐射的偏振方位角方向和具有轴向对称性之间大约180°。本发明还涉及一种激光腔（40“）具有这样的相移装置（42”）。

4. 发明申请

WO9835203A3 METHOD AND APPARATUS FOR PERFORMING OPTICAL MEASUREMENTS USING A RAPIDLY FREQUENCY-TUNED LASER 审中-公开
标题翻译：使用快速频率激光进行光学测量的方法和装置
公开(公告)号：WO9835203A3
公开(公告)日：1998-10-29
申请号：PCT/US9800071
申请日：1998-02-04
申请人： MASSACHUSETTS INST TECHNOLOGY
发明人： SWANSON ERIC A , CHINN STEPHEN R
IPC分类号： A61B3/10 , A61B5/103 , G01B9/02 , G01B11/24 , G01J1/00 , G01N21/47 , G02B5/18 , G02B27/44 , G11B7/00 , H01S3/08 , H01S3/081 , H01S3/083 , H01S5/0625 , H01S5/12 , H01S5/14 , H01S3/085
CPC分类号： A61B5/0066 , A61B1/00183 , A61B3/1005 , A61B3/102 , A61B5/0062 , A61B5/0064 , A61B5/441 , A61B5/7225 , A61B2562/0242 , B82Y35/00 , G01B9/02004 , G01B9/02045 , G01B9/02069 , G01B9/02072 , G01B9/02091 , G01B11/2441 , G01J1/00 , G01N21/4795 , G02B5/1828 , G02B27/4244 , G11B2007/0013 , H01S3/08009 , H01S3/0812 , H01S3/083 , H01S5/06255 , H01S5/1215 , H01S5/141 , H01S5/143 , H01S5/146
摘要： An external-cavity frequency-tuned laser having a tunable longitudinal cavity mode and a center tunable wavelength includes an optical gain medium positioned within the optical cavity, and a rapid tuning wavelength selecting device positioned to receive light from the optical gain medium and adapted to return selected wavelengths of light to the optical gain medium. The external-cavity frequency-tuned laser is substantially continuously tunable and the tunable wavelength selecting device tunes the center wavelength of the external-cavity frequency-tuned laser at the same rate as the longitudinal cavity mode of the external-cavity frequency-tuned laser is tuned. In another embodiment the optical system includes an interferometer in optical communication with the external-cavity frequency-tuned laser. The interferometer is adapted to project a portion of light from the external-cavity frequency-tuned laser onto a sample and to combine light reflected from the sample and the light from the external-cavity frequency-tuned laser.

5. 发明申请

WO1991003848A1 METHOD FOR ASCERTAINING MODE HOPPING FREE TUNING OF RESONANCE FREQUENCY AND THE Q-VALUE OF AN OPTICAL RESONATOR AND A DEVICE FOR CARRYING OUT THE METHOD 审中-公开
标题翻译：谐振频率自由调谐方式和光学谐振器的Q值及其实现方法
公开(公告)号：WO1991003848A1
公开(公告)日：1991-03-21
申请号：PCT/SE1990000573
申请日：1990-09-07
申请人： RADIANS INNOVA AB , NILSSON, Olle, Björn , VILHELMSSON, Kennet, Jan-Åke
发明人： RADIANS INNOVA AB
IPC分类号： H01S03/08
CPC分类号： H01S3/1055 , H01S3/0812 , H01S5/141
摘要： Method and apparatus to ensure tuning without mode hopping of the resonator frequency and tuning of the Q-value of an optical resonator of the type comprising a partially reflecting resonator mirror (2) and a movable reflecting optical grating, with grooves (GR) parallel to the resonator mirror, intended to function as a wavelength selective reflector and which may comprise optical elements between the mirror and the grating, said optical elements being intended for collimation, amplification (4) and filtering of the radiation in the resonator, so that when changing the resonance wavelength ( lambda ) of the resonator or its Q-value, the grating is moved in such a way that a line (C) on the grating which is defined at a tuned initial position of the resonator by the intersection of the plane of grating grooves (M) and the virtual mirror plane (5) of the resonator mirror, remains at a distance less than lambda /4 from the virtual mirror plane, which as a result of chromatic dispersion in the resonator media slides in distance to the fixed mirror with said resonator wavelength during the movement.
摘要翻译：确保在谐振器频率没有模式跳跃的情况下进行调谐并且调谐包括部分反射谐振镜（2）和可移动反射光栅的类型的光学谐振器的Q值的方法和装置，其中沟槽（GR）平行于该谐振器反射镜旨在用作波长选择性反射器并且可以包括反射镜和光栅之间的光学元件，所述光学元件旨在用于准直，放大（4）和谐振器中的辐射的滤波，以便在改变时谐振器的谐振波长（λ）或其Q值，光栅以这样一种方式移动，使得在谐振器的调谐初始位置上限定的光栅上的线（C）通过光栅槽（M）和谐振镜的虚拟镜面（5）与虚拟镜面保持距离小于λ/ 4的距离，由于色散i 谐振器介质在移动期间以所述谐振器波长在固定镜的距离上滑动。

6. 发明申请

WO1988008631A1 RAPIDLY SWITCHABLE LINE SELECTOR FOR PULSED LASERS 审中-公开
标题翻译：用于脉冲激光的快速可切换线选择器
公开(公告)号：WO1988008631A1
公开(公告)日：1988-11-03
申请号：PCT/US1988000864
申请日：1988-03-21
申请人： HUGHES AIRCRAFT COMPANY
发明人： HUGHES AIRCRAFT COMPANY , FINK, David
IPC分类号： H01S03/1055
CPC分类号： G02B26/0816 , H01S3/08009 , H01S3/0812 , H01S3/1055 , H01S3/106
摘要： This invention allows forcing successive pulses of a pulsed laser to be on different spectral lines. This invention can support a higher pulse repetition frequency than the prior art and the alignment of the laser does not change during a pulse. There are five implementations or embodiments of this invention. The first embodiment includes a set of diffraction gratings (25-30) on the face (24) of a wheel (23) each grating being set at an angle to select a different spectral line. The wheel is rotated, and as each grating moves into the end-reflector position of the laser's optical path, the laser is fired. The second embodiment includes a single fixed diffraction grating (58) and a set of plane mirrors (49-54) on the face (47) of the wheel (45), each mirror being set at an angle to reflect onto the diffraction grating and select a different spectral line. The wheel is rotated and as each mirror moves into the end-reflector position of the laser's optical path, the laser is fired. Alternate embodiments include a small spinning fold mirror (65) that reflects the beam in a circle about the axis (15) of the laser in an embodiment that includes (a) a circular array of diffraction gratings (73, 75) arranged about the laser axis such that the tilt of the gratings and the orientation of the grooves vary as one goes around the circle and successively fires the laser at each grating; (b) both a circular array of mirrors (77-79) and a corresponding array of diffraction gratings (80, 81) such that the grooves of all of the gratings are parallel and the gratings are all tilted in the same direction; and (c) two spinning fold mirrors (59, 59') and two circular arrays of mirrors (77, 79, 87, 89) giving a double fold plus a single diffraction grating (99) wherein the optical paths are not parallel but arrive at the grating at different angles for selecting different spectral lines.
摘要翻译：本发明允许脉冲激光的连续脉冲在不同的谱线上。本发明可以支持比现有技术更高的脉冲重复频率，并且激光的对准在脉冲期间不改变。本发明有五个实施方案或实施方案。第一实施例包括在轮（23）的面（24）上的一组衍射光栅（25-30），每个光栅被设置成一角度以选择不同的光谱线。轮子旋转，并且当每个光栅移动到激光器的光路的端部反射器位置时，激光器被点燃。第二实施例包括在轮（45）的面（47）上的单个固定衍射光栅（58）和一组平面镜（49-54），每个反射镜被设置成一定角度以反射到衍射光栅上，并且选择不同的谱线。轮子被旋转，并且当每个反射镜移动到激光器的光路的端部反射器位置时，激光器被激发。替代实施例包括在包括（a）围绕激光器布置的衍射光栅（73,75）的圆形阵列的实施例中的围绕激光的轴线（15）将光束反射成圆形的小型旋转折叠镜（65）使得光栅的倾斜度和凹槽的取向随着环绕圆周而变化，并且在每个光栅处依次激发激光器; （b）反射镜的圆形阵列（77-79）和相应的衍射光栅阵列（80,81），使得所有光栅的凹槽平行并且光栅都沿相同方向倾斜; 和（c）两个旋转折叠镜（59,59'）和两个圆形阵列的反射镜（77,79,87,89），其提供双折叠加上单个衍射光栅（99），其中光路不平行但到达在不同角度的光栅处，用于选择不同的光谱线。

7. 发明申请

WO2019002763A1 SOURCE LASER À SEMI-CONDUCTEUR 审中-公开
公开(公告)号：WO2019002763A1
公开(公告)日：2019-01-03
申请号：PCT/FR2018/051571
申请日：2018-06-27
申请人： COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
发明人： WILMART, Quentin , HASSAN, Karim , OLIVIER, Ségolène
IPC分类号： H01S5/10 , H01S5/14 , H01S3/08 , H01S3/081 , H01S3/083 , H01S5/02 , H01S5/026 , H01S5/06 , H01S5/323
CPC分类号： H01S5/1032 , H01S3/08022 , H01S3/08027 , H01S3/0812 , H01S3/083 , H01S5/021 , H01S5/0261 , H01S5/0264 , H01S5/0612 , H01S5/1035 , H01S5/141 , H01S5/142 , H01S5/32391
摘要： Source laser à semi-conducteur dans laquelle, pour coupler optiquement un troisième guide d'onde (15, 36) à un premier guide d'onde (28) par l'intermédiaire d'un deuxième guide d'onde (25), une cavité optique résonante comporte au moins un coupleur contra-directionnel (24, 34) assisté par réseau apte à transformer l'essentiel du signal optique à une longueur d'onde Au qui se propage dans un sens le long du troisième guide d'onde (15, 36), en un signal optique de même longueur d'onde, qui se propage en sens opposé dans le premier (28) ou le deuxième (25) guide d'onde, ce coupleur contra-directionnel comportant à cet effet au moins une partie réalisée dans le troisième guide d'onde (15, 36) et un réseau de motifs répétés avec un pas régulier, ce réseau de motifs étant réalisé dans le deuxième (25) ou le troisième (15, 36) guide d'onde.

8. 发明申请

WO2013106942A1 WAVELENGTH -TUNABLE EXTERNAL CAVITY LASER DIODE WITH A GRISM FOR OCT 审中-公开
标题翻译： WAVELENGTH -TUNABLE EXTERAL CAVITY LASER DIODE WITH GRISM FOR OCT
公开(公告)号：WO2013106942A1
公开(公告)日：2013-07-25
申请号：PCT/CH2013/000004
申请日：2013-01-09
申请人： EXALOS AG
发明人： BACHMANN, Adrian , DÜLK, Marcus
IPC分类号： H01S3/081 , H01S5/14 , G02B5/18 , H01S3/08 , H01S3/082 , H01S3/105 , H01S3/106 , H01S5/022 , H01S5/40
CPC分类号： H01S3/10023 , G01B9/02091 , H01S3/07 , H01S3/08059 , H01S3/0812 , H01S3/0826 , H01S3/105 , H01S3/106 , H01S5/02248 , H01S5/141 , H01S5/142 , H01S5/30 , H01S5/4031
摘要： In accordance with an aspect of the invention, the external cavity semiconductor laser light source comprises: - a semiconductor gain device (11) operable to provide light amplification; - a wavelength selection element (20) comprising a diffraction grating (25); and - light re-directors (13, 21); - the gain device, the light re -directors and the grating being mutually arranged so that an optical resonator is established for light portions emitted by the gain device and diffracted by the diffraction grating; - wherein the resonator is an external cavity laser resonator; - the light source being capable of varying an angle of incidence of radiation circulating in the resonator onto wavelength selection element to select a resonator radiation wavelength dependent on said angle of incidence. The wavelength selection element (20) may be a GRISM, i.e. a grating (25) between two prisms (23, 24).
摘要翻译：根据本发明的一个方面，外腔半导体激光光源包括： - 半导体增益器件（11），可操作以提供光放大; - 包括衍射光栅（25）的波长选择元件（20）; （13，21）; - 增益器件，光导向器和光栅被相互布置，使得为由增益器件发射并被衍射光栅衍射的光部分建立光学谐振器; - 其中所述谐振器是外腔激光谐振器; - 所述光源能够改变在所述谐振器中循环的波长的波长选择元件的入射角，以选择取决于所述入射角的谐振器辐射波长。波长选择元件（20）可以是GRISM，即在两个棱镜（23,24）之间的光栅（25）。

9. 发明申请

WO2008153488A1 DIODE -PUMPED LASER WITH A VOLUME BRAGG GRATING AS AN INPUT COUPLING MIRROR. 审中-公开
标题翻译：二极管激光器作为输入耦合反射镜。
公开(公告)号：WO2008153488A1
公开(公告)日：2008-12-18
申请号：PCT/SE2008/050689
申请日：2008-06-10
申请人： LAURELL, Fredrik , JACOBSSON, Björn , PASISKEVICIUS, Valdas , HELLSTRÖM, Jonas
发明人： LAURELL, Fredrik , JACOBSSON, Björn , PASISKEVICIUS, Valdas , HELLSTRÖM, Jonas
IPC分类号： H01S3/093 , H01S3/1055 , H01S3/13 , G02B5/18
CPC分类号： H01S3/09415 , H01S3/0627 , H01S3/08059 , H01S3/0812 , H01S3/109 , H01S5/041 , H01S5/141
摘要： A laser is disclosed, comprising a laser medium that can be optically pumped and a cavity in which the said laser medium is placed, which laser comprises a volume Bragg grating that is arranged so that optical pumping of the laser medium can be done through the said volume Bragg grating.
摘要翻译：公开了一种激光器，其包括可以被光学泵浦的激光介质和其中放置所述激光介质的空腔，该激光器包括体积布拉格光栅，其布置成使得能够通过所述激光介质光学泵浦激光介质体积布拉格光栅。

10. 发明申请

WO0133285A3 MULTIPLE WAVELENGTH OPTICAL SOURCES 审中-公开
标题翻译：多波长光源
公开(公告)号：WO0133285A3
公开(公告)日：2002-01-24
申请号：PCT/US0029493
申请日：2000-10-25
申请人： SDL INC
发明人： WAARTS ROBERT , MACCORMACK STUART , GILTNER DAVID , DOMINIC VINCENT , SCIFRES DONALD , PEZESHKI BARDIA , VAIL EDWARD , ZIARI MEHRDAD
IPC分类号： H01S3/067 , H01S3/08 , H01S3/081 , H01S3/094 , H01S3/30
CPC分类号： H01S3/094 , H01S3/0675 , H01S3/08086 , H01S3/0812 , H01S3/094042 , H01S3/302
摘要： Optical pumping arrangements are provided for the broadband or multiple wavelength pumping of optical sources. Sources may be based on Raman gain media and may use multiple output couplers to couple out different wavelength ranges. Configurations may also be used. Overlapping resonators cascaded Raman resonators at different wavelengths may be configured to share gain media, and may have separate portions in separate optical paths. Attenuation filters may also be used that are matched to the gain profile of a gain medium, to flatten the gain spectrum and allow equalization of gain to different output wavelengths. In one embodiment, polarization maintaining fiber is used to develop resonant conditions at different wavelengths in different polarization states. Wideband output gratings may be substituted for narrowband gratings to provide CRR configurations with a broader output band. Broadband amplification may also be provided by using a laser source operating in coherence collapse. The multiple wavelength pumping lends itself to a pumping arrangement in which sources at different wavelengths are combined into separate transmission/gain media such as the different fibers of an optical fiber cable.
摘要翻译：提供了用于光源的宽波长或多波长泵浦的光泵浦装置。源可以基于拉曼增益介质，并且可以使用多个输出耦合器耦合出不同的波长范围。也可以使用配置。可以配置不同波长的级联拉曼谐振器的重叠共振器以共享增益介质，并且可以在分开的光路中具有分离的部分。还可以使用与增益介质的增益曲线匹配的衰减滤波器，以平坦化增益谱，并允许将增益均衡到不同的输出波长。在一个实施例中，使用偏振保持光纤来发展不同偏振态的不同波长的谐振条件。宽带输出光栅可以代替窄带光栅，以提供具有更宽输出频带的CRR配置。也可以通过使用在相干塌陷中操作的激光源来提供宽带放大。多波长泵浦本身适用于泵送装置，其中将不同波长的源组合成单独的传输/增益介质，例如光纤电缆的不同光纤。

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