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公开(公告)号：US5928221A
公开(公告)日：1999-07-27
申请号：US971318
申请日：1997-11-17
CPC分类号： A61F9/008 , A61F9/00802 , A61F2009/00846 , A61F2009/00855 , A61F2009/00872 , A61F2009/00897
摘要： Fluence monitoring apparatus is disclosed for a system for modifying curvature of a cornea by selective laser photoablation of corneal tissue by means of a succession of pulses of laser radiation delivered to the cornea in an overlapping pattern corresponding to a desired pattern of photoablation. The system includes a scanning arrangement for directing the pulses to form the overlapping pattern. The fluence monitoring apparatus includes a beamsplitter located between the scanning arrangement and the cornea for directing a fraction of each of the pulses to a monitor plate. The monitor plate emits fluorescent light on being irradiated by each pulse-fraction. A video camera provides an electronic image of the monitor plate. Processing circuitry periodically records the electronic image, and the periodic image recordings are integrated to form a composite image representative of spatial distribution of laser fluence on the cornea.
摘要翻译： 荧光监测装置被公开用于通过用对应于期望的光消除图案的重叠图案递送到角膜的一系列激光辐射脉冲的选择性激光光切割角膜组织来修改角膜的弯曲的系统。 该系统包括用于引导脉冲以形成重叠图案的扫描装置。 注量监测装置包括位于扫描装置和角膜之间的分束器，用于将每个脉冲的一部分引导到监视器板。 监控板在每个脉冲分数照射下发射荧光。 视频摄像机提供监视器板的电子图像。 处理电路周期性地记录电子图像，并且周期性图像记录被整合以形成代表角膜上的激光注量的空间分布的合成图像。
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2.发明授权公开(公告)号：US06287299B1
公开(公告)日：2001-09-11
申请号：US09315894
申请日：1999-05-21
IPC分类号： A61F1800
CPC分类号： A61F9/008 , A61F9/00802 , A61F2009/00846 , A61F2009/00855 , A61F2009/00872 , A61F2009/00897
摘要： Fluence monitoring apparatus is disclosed for a system for modifying curvature of the cornea of an eye by selective laser photoablation of corneal tissue by delivery of pulses of laser radiation to the cornea in an overlapping pattern. The system includes a scanner for directing the pulses to form the overlapping pattern, the movement of which is modified by an eye-tracker. A beamsplitter is located between the scanner and the cornea for directing a fraction of each of the pulses to a fixed monitor plate, which emits fluorescent light on being irradiated by each pulse-fraction. A video camera 100 images the monitor plate. Processing circuitry periodically records the image which includes images of pulse-fractions delivered during the period between recordings. These recordings are electronically integrated and processed to form a composite image representative of spatial distribution of laser fluence on the cornea.
摘要翻译： 公开了一种用于通过以重叠图案将激光辐射脉冲递送到角膜的角膜组织的选择性激光光切割来修改眼睛角膜曲率的系统的流量监测装置。 该系统包括用于引导脉冲以形成重叠图案的扫描器，其移动由眼睛跟踪器修改。 分束器位于扫描器和角膜之间，用于将每个脉冲的一部分引导到固定的监视器板，固定的监视器板在被每个脉冲分数照射时发射荧光。 摄像机100对监视器板进行成像。 处理电路周期性地记录包括记录期间传送的脉冲分数的图像的图像。 这些记录被电子整合并处理，以形成代表角膜上的激光注量的空间分布的复合图像。
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3.发明申请OPTICALLY-PUMPED EXTERNAL-CAVITY SURFACE-EMITTING SEMICONDUCTOR LASERS WITH FRONT-COOLED GAIN-STRUCTURES 有权具有前冷却增益结构的光泵浦外壳表面发射半导体激光器公开(公告)号：US20110064099A1
公开(公告)日：2011-03-17
申请号：US12558315
申请日：2009-09-11
CPC分类号： H01S5/183 , H01S3/07 , H01S3/08054 , H01S3/0816 , H01S3/083 , H01S3/1062 , H01S3/1066 , H01S5/0213 , H01S5/0217 , H01S5/02484 , H01S5/041 , H01S5/14
摘要： A semiconductor gain-structure functions as a gain-element in a laser-resonator. The gain-structure is bonded to a diamond heat-spreader that is peripherally cooled by a heat-sink configured to allow access to the gain-structure by laser-radiation circulating in the laser-resonator. In one example, the gain-structure is used as a transmissive gain-structure in a traveling-wave ring-resonator. In another example, the gain-structure surmounts a mirror-structure which functions as an end-mirror of a standing-wave laser-resonator.
摘要翻译： 半导体增益结构在激光谐振器中用作增益元件。 增益结构被结合到金刚石散热器，该金刚石散热器通过被配置为允许通过在激光谐振器中循环的激光辐射而进入增益结构的散热器周边地冷却。 在一个示例中，增益结构用作行波环形谐振器中的透射增益结构。 在另一示例中，增益结构克服了用作驻波激光谐振器的端镜的镜面结构。
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公开(公告)号：US07430071B2
公开(公告)日：2008-09-30
申请号：US11602147
申请日：2006-11-20
申请人： Bojan Resan , R. Russel Austin , Jason P. Watson
发明人： Bojan Resan , R. Russel Austin , Jason P. Watson
IPC分类号： G02B26/00
CPC分类号： G02F1/1313 , G02F2203/12 , G02F2203/26 , H01S3/0057
摘要： An optical pulse-shaper includes a prism, a delay line having positive optical power and a reflective spatial light modulator. In one arrangement the delay line has a selectively variable optical path length for accommodating pulses of different spectral bandwidth and positive optical power is provided by a concave mirror. In another arrangement, the delay line includes a zoom-mirror arranged to provide selectively variable optical power for accommodating pulses of different spectral bandwidth.
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5.发明申请公开(公告)号：US20070291801A1
公开(公告)日：2007-12-20
申请号：US11801538
申请日：2007-05-10
IPC分类号： H01S3/10
CPC分类号： G02F1/39 , H01S3/082 , H01S3/1083 , H01S3/109 , H01S5/14
摘要： An optically pumped semiconductor pumped optical parametric oscillator (OPS-pumped OPO) includes an OPS laser resonator and an OPO resonator A portion the OPS laser resonator axis and the OPO resonator axis are collinear. An optically nonlinear crystal is located in the coaxial portion of the resonators and arranged to frequency divide fundamental radiation generated in the OPS laser resonator into signal and idler radiations. In one arrangement, the OPO laser resonator is also an OPS resonator and is arranged to generate radiation at the wavelength of the signal radiation, with the idler radiation having the difference-frequency wavelength of the signal and fundamental radiations
摘要翻译： 光泵浦半导体泵浦光参量振荡器（OPS泵浦OPO）包括OPS激光谐振器和OPO谐振器A部分，OPS激光谐振器轴和OPO谐振器轴共线。 光学非线性晶体位于谐振器的同轴部分中，并被布置成将OPS激光谐振器中产生的基本辐射频率分频为信号和惰轮辐射。 在一种布置中，OPO激光谐振器也是OPS谐振器，并且被布置成在信号辐射的波长处产生辐射，其中惰轮辐射具有信号的差频波长和基波辐射
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公开(公告)号：US07300809B2
公开(公告)日：2007-11-27
申请号：US11194000
申请日：2005-07-29
CPC分类号： H01S5/041 , H01S5/026 , H01S5/028 , H01S5/0287 , H01S5/0288 , H01S5/0425 , H01S5/2231 , H01S5/4031 , H01S2304/00
摘要： A multilayer semiconductor laser includes a substrate on which is formed a semiconductor multilayer heterostructure divided into a plurality of electrically pumped regions and an elongated optically pumped region. The electrically pumped regions generate and deliver optical pump radiation laterally into the elongated optically pumped region. Output radiation is generated and delivered by the optically pumped region.
摘要翻译： 多层半导体激光器包括在其上形成分为多个电泵浦区域和细长的光泵浦区域的半导体多层异质结构的衬底。 电泵浦区域产生并将光泵浦辐射横向地传送到细长的光泵浦区域。 输出辐射由光泵浦区域产生和传送。
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公开(公告)号：US07254153B2
公开(公告)日：2007-08-07
申请号：US11193122
申请日：2005-07-29
IPC分类号： H01S3/083
CPC分类号： H01S3/109 , H01S3/07 , H01S3/0816 , H01S3/082 , H01S3/083 , H01S3/0941 , H01S3/1003 , H01S3/105 , H01S5/041 , H01S5/141 , H01S5/183 , H01S5/423
摘要： An optically pumped semiconductor laser includes an active ring-resonator having two or more optically pumped semiconductor (OPS) structures each including a mirror-structure and a multilayer gain-structure. The mirror-structures serve as fold mirrors for the resonator axis. An optically nonlinear crystal may be included in the ring-resonator for generating second-harmonic radiation from fundamental radiation generated in the resonator. Another optically nonlinear crystal may be provided for generating third-harmonic or fourth-harmonic radiation from the second-harmonic radiation. In one example, including a third-harmonic generating crystal, a passive ring-resonator partially coaxial with the active ring-resonator is provided for circulating second-harmonic radiation to provide resonant amplification of the second-harmonic radiation for enhancing third-harmonic conversion. Apparatus for automatically maintaining the passive ring-resonator in a resonant condition for the second-harmonic radiation is disclosed.
摘要翻译： 光泵浦半导体激光器包括具有两个或多个光泵浦半导体（OPS）结构的有源环形谐振器，每个结构包括镜面结构和多层增益结构。 镜结构用作谐振器轴的折叠镜。 环形谐振器中可以包括光学非线性晶体，用于从在谐振器中产生的基本辐射产生二次谐波辐射。 可以提供另一种光学非线性晶体用于从二次谐波辐射产生三次谐波或四次谐波辐射。 在一个示例中，包括三次谐波产生晶体，提供与有源环形谐振器部分同轴的无源环形谐振器，用于循环二次谐波辐射以提供用于增强三次谐波转换的二次谐波辐射的谐振放大。 公开了用于将二次谐波辐射的谐振条件下的无源环形谐振器自动维持的装置。
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8.发明授权公开(公告)号：US07016393B2
公开(公告)日：2006-03-21
申请号：US10667675
申请日：2003-09-22
CPC分类号： G02B27/0955 , G02B19/0014 , G02B19/0057 , H01S5/005 , H01S5/024 , H01S5/4012 , H01S5/4031
摘要： Apparatus for projecting a line of light includes a linear array of diode-lasers arranged in a diode-laser bar. The apparatus includes an optical system. Components of the system include a plurality of lenses and array of cylindrical microlenses having the same spacing as diode-lasers in the diode-laser array. The microlens array is spaced at a distance from the diode-laser bar and aligned with the diode-laser bar such that the front focal plane of the microlens array is between the diode-laser bar and the microlens array. The optical system components are configured and arranged to project overlapping elongated images in a predetermined plane. The overlapping images form the line of light. The elongated images are images of cross-sections of beams from the diode-lasers where the beams are intersected by the front focal plane of the microlens array.
摘要翻译： 用于投射一束光的装置包括布置在二极管激光条中的二极管激光器的线性阵列。 该装置包括光学系统。 该系统的组件包括多个透镜和具有与二极管激光器阵列中的二极管激光器相同间隔的圆柱形微透镜阵列。 微透镜阵列与二极管激光棒间隔一定距离，并与二极管激光条对准，使得微透镜阵列的前焦平面位于二极管激光条和微透镜阵列之间。 光学系统组件被配置和布置成在预定平面中投影重叠的细长图像。 重叠的图像形成光线。 细长图像是来自二极管激光器的光束横截面的图像，其中光束与微透镜阵列的前焦平面相交。
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公开(公告)号：US06951558B2
公开(公告)日：2005-10-04
申请号：US10354187
申请日：2003-01-30
CPC分类号： A61B18/203 , A61B2018/00452 , A61B2018/00458 , A61B2018/2025 , A61B2018/20359
摘要： A scanning optical system for delivering electromagnetic radiation onto tissue to be treated is cooperative with a lightguide or optical fiber. Radiation to be delivered is provided by a source thereof via the optical fiber. The optical system includes an optical projection arrangement comprising a plurality of lenses cooperatively arranged with the lightguide. A first of the lenses is arranged to receive radiation emerging from the lightguide. The beam of radiation is passed through the projection arrangement to form a treatment spot the radiation on the tissue. Scanning is effected by causing relative motion between the exit-end of said lightguide and at least the first lens, transverse to the optical axis of the projection arrangement. The treatment spot undergoes a related transverse motion over the tissue. In one example scanning is effected by moving the first lens with the lightguide fixed. The first lens is moved using an arrangement of piezo-electric actuators.
摘要翻译： 用于将电磁辐射传送到要处理的组织上的扫描光学系统与光导或光纤协调。 待传送的辐射通过其光源由光源提供。 光学系统包括光学投影装置，其包括与光导协同地布置的多个透镜。 第一透镜布置成接收从光导中出射的辐射。 辐射束通过突出装置，以形成处理点上的组织上的辐射。 通过使所述光导的出射端和至少第一透镜之间的横向于投影装置的光轴的相对运动来实现扫描。 治疗点在组织上经历相关的横向运动。 在一个示例中，通过使光固定器固定的第一透镜移动来实现扫描。 使用压电致动器的布置移动第一透镜。
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10.发明授权
公开(公告)号：US6154318A
公开(公告)日：2000-11-28
申请号：US441002
申请日：1999-11-16
申请人： R. Russel Austin , R. Ian Edmond
发明人： R. Russel Austin , R. Ian Edmond
CPC分类号： G02B5/0883 , G02B5/0858
摘要： Negative Group-delay-dispersion mirror (NGDD-mirror) multilayer structures include a generally-orderly arrangement of layers or groups of layers in which the function of certain individual layers or groups of layers can be recognized and defined. The structures are broadly definable as a rear group of layers which are primarily responsible for providing a desired reflection level and reflection bandwidth together with a low and smoothly varying reflection phase-dispersion, and a front group of layers which are primarily responsible for producing high reflection phase-dispersion necessary for providing a desired NGDD level and bandwidth. The front group of layers relies on multiple resonant trapping mechanisms such as two or more effective resonant-cavities, employing one or more sub-quarter-wave layers to shape the phase-dispersion for providing a substantially-constant NGDD. In certain embodiments of the structures, a base layer or substrate of a highly-reflective metal can be used to reduce the number of dielectric layers needed to provide high reflectivity.
摘要翻译： 负组延迟分散反射镜（NGDD-mirror）多层结构包括层或层组的一般有序布置，其中可以识别和限定某些单个层或多组层的功能。 这些结构可以广泛地定义为后面的层组，其主要负责提供期望的反射水平和反射带宽以及低和平滑变化的反射相位分散以及主要负责产生高反射的前面的层组 提供所需的NGDD级别和带宽所需的相位色散。 前组的层依赖于多个谐振捕获机构，例如两个或更多个有效的谐振腔，采用一个或多个亚四分之一波长的层来形成相位分散以提供基本上恒定的NGDD。 在结构的某些实施例中，可以使用高反射金属的基底层或衬底来减少提供高反射率所需的电介质层的数量。
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