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公开(公告)号：US07738515B2
公开(公告)日：2010-06-15
申请号：US12138042
申请日：2008-06-12
IPC分类号： H01S3/10
CPC分类号： H01S3/1106 , G02F1/37 , H01S3/0057 , H01S3/0092 , Y10S372/70
摘要： Laser apparatus is disclosed in which fundamental-wavelength optical pulses delivered from a mode-locked laser resonator at a pulse-repetition frequency (PRF) are converted to harmonic-wavelength pulses in an optical delay loop. One example is disclosed in which the harmonic-wavelength pulses are delivered directly from the delay loop. Another example is disclosed in which the harmonic-wavelength pulses are divided by the delay loop into a number of temporally spaced-apart replicas thereof, and the delay loop delivers bursts of replicas of different one of the harmonic wavelength pulses at a burst-repetition frequency equal to or a multiple of the PRF of the resonator.
摘要翻译： 公开了一种激光装置，其中以脉冲重复频率（PRF）从锁模激光谐振器传送的基波波长光脉冲被转换成光延迟环路中的谐波波长脉冲。 公开了一个示例，其中谐波波长脉冲直接从延迟环路传送。 公开了另一个例子，其中谐波波长脉冲被延迟环分成多个时间间隔分开的副本，并且延迟环以突发重复频率递送不同一个谐波波长脉冲的复制脉冲串 等于谐振器的PRF或倍数。
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公开(公告)号：US07706069B2
公开(公告)日：2010-04-27
申请号：US11803271
申请日：2007-05-14
申请人： Oliver Mehl , R. Russel Austin
发明人： Oliver Mehl , R. Russel Austin
IPC分类号： G02B27/28
CPC分类号： G02B27/281 , H01S3/005
摘要： Apparatus for attenuating an unpolarized laser beam includes a polarizing beamsplitter for separating the laser beam into two plane-polarized beams following separate paths. The two plane-polarized beams are polarization rotated by a single polarization rotator. Each of the polarization-rotated beams is separated by a polarizing beam-combiner into two plane-polarized portions. One of the portions of one polarization-rotated beam is combined by the beam-combiner with one of the portions of the other polarization-rotated beam to provide an attenuated output-beam. In certain examples of the apparatus the separate paths are made equal in length so that combined beam portions are equal in diameter.
摘要翻译： 用于衰减非偏振激光束的装置包括偏振分束器，用于将激光束分离成分开的路径之后的两个平面偏振光束。 两个平面偏振光束由单个偏振旋转器偏振旋转。 每个偏振旋转光束由偏振光束组合器分离成两个平面偏振部分。 一个偏振旋转光束的一个部分由光束组合器与另一个偏振旋转光束的部分之一组合以提供衰减的输出光束。 在设备的某些实例中，分离的路径的长度相等，使得组合的梁部分的直径相等。
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公开(公告)号：US20090290606A1
公开(公告)日：2009-11-26
申请号：US12126577
申请日：2008-05-23
申请人： Juan L. Chilla , Bojan Resan , R. Russel Austin
发明人： Juan L. Chilla , Bojan Resan , R. Russel Austin
CPC分类号： H01S3/1112 , B82Y20/00 , H01S3/0604 , H01S3/07 , H01S3/094026 , H01S3/1022 , H01S3/109 , H01S3/1109 , H01S5/041 , H01S5/14 , H01S5/18358 , H01S5/3425
摘要： A laser resonator includes an OPS gain-structure that is pumped with optical pulses repeatedly delivered at a pulse-repetition frequency corresponding to a resonant frequency of the laser resonator. The laser resonator additionally includes a passive mode-locking arrangement such that the resonator delivers mode-locked optical pulses. In one example the laser resonator further includes a CW optically pumped OPS gain-structure for increasing the power of the mode-locked pulses delivered from the resonator.
摘要翻译： 激光谐振器包括OPS增益结构，其被以与激光谐振器的谐振频率相对应的脉冲重复频率重复传送的光脉冲泵浦。 激光谐振器还包括无源模式锁定装置，使得谐振器提供锁模光脉冲。 在一个示例中，激光谐振器还包括CW光泵浦OPS增益结构，用于增加从谐振器传送的锁模脉冲的功率。
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44.发明授权Amorphous silicon crystallization using combined beams from optically pumped semiconductor lasers 失效使用光泵浦半导体激光器的组合光束进行非晶硅结晶公开(公告)号：US07615722B2
公开(公告)日：2009-11-10
申请号：US11487798
申请日：2006-07-17
IPC分类号： H01L21/00
CPC分类号： B23K26/0604 , B23K26/0613 , B23K2101/40
摘要： An amorphous silicon layer on a glass substrate is crystallized by concentrating CW radiation from a number of OPS-lasers into a line of light on the layer. The layer is moved with respect to the line of light to control the dwell time of the line on any location on the layer and to crystallize an extended area of the layer.
摘要翻译： 通过将来自多个OPS激光器的CW辐射集中到该层上的光线中，玻璃基板上的非晶硅层被结晶。 该层相对于光线移动，以控制该层在该层上任何位置上的停留时间并使该层的延伸区域结晶。
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公开(公告)号：US20080310004A1
公开(公告)日：2008-12-18
申请号：US12228463
申请日：2008-08-13
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： G02F1/23
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.
摘要翻译： 光脉冲整形器包括棱镜，具有正光焦度的延迟线和反射空间光调制器。 在一种布置中，延迟线具有用于容纳不同光谱带宽的脉冲的选择性可变光路长度，并且正光焦度由凹面镜提供。 在另一种布置中，延迟线包括被配置为提供用于适应不同光谱带宽的脉冲的选择性可变光功率的变焦镜。
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46.发明授权Method for laterally-coupling frequency-converted laser radiation out of a resonator 有权将频率转换的激光辐射横向耦合到谐振器的方法公开(公告)号：US07466728B2
公开(公告)日：2008-12-16
申请号：US11484914
申请日：2006-07-12
申请人： David Clubley , R. Russel Austin
发明人： David Clubley , R. Russel Austin
IPC分类号： H01S3/10
CPC分类号： G02F1/37 , G02F1/3501 , G02F2001/3505 , G02F2001/3509 , G02F2203/15
摘要： In traveling-wave ring-resonator an optically nonlinear crystal for converting visible radiation to ultraviolet (UV) radiation has an input face and two output faces. The visible light propagates through the crystal from the input face to one of the output faces. That output face is coated with a dichroic optical coating that transmits unconverted visible light and reflects the ultraviolet light. The reflected ultraviolet light exits the optically nonlinear crystal via the other output face and is coupled out of the resonator at an angle to the resonator axis.
摘要翻译： 在行波环形谐振器中，用于将可见光辐射转换为紫外线（UV）辐射的光学非线性晶体具有输入面和两个输出面。 可见光通过晶体从输入面传播到输出面之一。 该输出面涂覆有二向色光学涂层，其传递未转换的可见光并反射紫外光。 反射的紫外光通过另一个输出面离开光学非线性晶体，并且以与谐振器轴成一定角度耦合到谐振器外。
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公开(公告)号：US20080285130A1
公开(公告)日：2008-11-20
申请号：US11803271
申请日：2007-05-14
申请人： Oliver Mehl , R. Russel Austin
发明人： Oliver Mehl , R. Russel Austin
IPC分类号： G02B27/28
CPC分类号： G02B27/281 , H01S3/005
摘要： Apparatus for attenuating an unpolarized laser beam includes a polarizing beamsplitter for separating the laser beam into two plane-polarized beams following separate paths. The two plane-polarized beams are polarization rotated by a single polarization rotator. Each of the polarization-rotated beams is separated by a polarizing beam-combiner into two plane-polarized portions. One of the portions of one polarization-rotated beam is combined by the beam-combiner with one of the portions of the other polarization-rotated beam to provide an attenuated output-beam. In certain examples of the apparatus the separate paths are made equal in length so that combined beam portions are equal in diameter.
摘要翻译： 用于衰减非偏振激光束的装置包括偏振分束器，用于将激光束分离成分开的路径之后的两个平面偏振光束。 两个平面偏振光束由单个偏振旋转器偏振旋转。 每个偏振旋转光束由偏振光束组合器分离成两个平面偏振部分。 一个偏振旋转光束的一个部分由光束组合器与另一个偏振旋转光束的部分之一组合以提供衰减的输出光束。 在设备的某些实例中，分离的路径的长度相等，使得组合的梁部分的直径相等。
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公开(公告)号：US06947466B2
公开(公告)日：2005-09-20
申请号：US10767420
申请日：2004-01-29
IPC分类号： H01L21/00 , H01S3/091 , H01S3/094 , H01S5/00 , H01S5/026 , H01S5/028 , H01S5/04 , H01S5/042 , H01S5/223 , H01S5/40
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 delivering 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输送到细长的光泵浦区域中。 输出辐射由光泵浦区域产生和传送。
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公开(公告)号：US06590911B1
公开(公告)日：2003-07-08
申请号：US09586096
申请日：2000-06-02
IPC分类号： H01S310
CPC分类号： H01S3/1112 , H01S3/108 , H01S3/109
摘要： A laser includes a resonator terminated by first and second mirrors and including a gain medium providing fundamental radiation. A first optically-nonlinear element is located in the resonator. The first optically-nonlinear element is cooperatively arranged with the first mirror to provide passive modelocking of the fundamental radiation by sequentially converting a first portion of the circulating fundamental radiation to second-harmonic radiation and reconverting a first portion of the second-harmonic radiation to fundamental radiation. A second optically-nonlinear element is arranged to convert a second portion of the second-harmonic radiation to either third-harmonic radiation or fourth-harmonic radiation.
摘要翻译： 激光器包括由第一和第二反射镜端接并包括提供基本辐射的增益介质的谐振器。 第一光学非线性元件位于谐振器中。 第一光学非线性元件与第一反射镜配合配置，以通过将循环基本辐射的第一部分顺序地转换成二次谐波辐射并将二次谐波辐射的第一部分重新转换为基本光束来提供基本辐射的被动锁模 辐射。 第二光学非线性元件被布置成将二次谐波辐射的第二部分转换成三次谐波辐射或四次谐波辐射。
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50.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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