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公开(公告)号：US5999544A
公开(公告)日：1999-12-07
申请号：US812928
申请日：1997-03-04
申请人： Alan B. Petersen
发明人： Alan B. Petersen
IPC分类号： H01S3/094 , H01S3/0941 , H01S3/30
CPC分类号： H01S3/09415 , H01S3/094053
摘要： A laser or laser amplifier apparatus has a diode pump source producing a polarized pump beam. A laser head includes a gain medium that produces an output beam. One or more optical fibers are coupled to the diode pump source and deliver the pump beam to the laser head. A depolarization device is coupled to the diode pump source, laser head or optical fiber and produces an depolarized pump beam. By depolarizing the output beam, movement, including rotation, of the pump source does not comprise the output beam produced from the laser head.
摘要翻译： 激光或激光放大器装置具有产生偏振泵浦光束的二极管泵浦源。 激光头包括产生输出光束的增益介质。 一个或多个光纤耦合到二极管泵浦源并将泵浦光束传送到激光头。 去极化装置耦合到二极管泵浦源，激光头或光纤并且产生去极化的泵浦光束。 通过使输出光束去极化，泵源的运动（包括旋转）不包括从激光头产生的输出光束。
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2.发明授权Retinal photocoagulator including diode pumped, multi-axial mode intracavity doubled laser 失效视网膜光凝器包括二极管泵浦，多轴模式腔内双激光
公开(公告)号：US5991317A
公开(公告)日：1999-11-23
申请号：US35680
申请日：1998-03-05
申请人： William L. Nighan, Jr. , John Cole
发明人： William L. Nighan, Jr. , John Cole
IPC分类号： A61F9/008 , G02F1/35 , G02F1/37 , H01S3/081 , H01S3/094 , H01S3/0941 , H01S3/109 , H01S3/13 , H01S3/16 , H01S3/10
CPC分类号： A61F9/008 , G02F1/37 , H01S3/109 , G02F2001/3542 , H01S3/081 , H01S3/094053 , H01S3/09415 , H01S3/13 , H01S3/1611 , H01S3/1643 , H01S3/1653 , H01S3/1673
摘要： A diode pumped, multi axial mode, intracavity doubled, intracavity tripled laser, includes at least two resonator mirrors defining a resonator cavity. A laser crystal and a doubling crystal are positioned in the resonator cavity. A tripling crystal is also positioned in the resonator cavity. A diode pump source supplies a pump beam to the laser crystal and produces a laser crystal beam with a plurality of axial modes that are incident on the doubling crystal. This produces a frequency doubled output beam.Further, a diode pumped, multi axial mode, intracavity nonlinearly-converted laser is provided and includes at least two resonator mirrors defining a resonator cavity, a laser crystal and a nonlinear conversion apparatus positioned in the resonator cavity. A nonlinear conversion apparatus is also positioned in the resonator cavity. A diode pump source supplying a pump beam to the laser crystal and produces a laser crystal beam with a plurality of axial modes that are incident on the nonlinear conversion apparatus. The result is a nonlinearly converted output beam that has a % RMS noise of less than 3%.
摘要翻译： 二极管泵浦，多轴模式，腔内倍增，腔内三倍激光器包括限定谐振腔的至少两个谐振器镜。 激光晶体和双晶晶体位于谐振腔中。 三重晶体也位于谐振腔中。 二极管泵浦源将泵浦光束提供给激光晶体，并产生具有多个入射在双晶体上的轴向模式的激光晶体束。 这产生了倍频输出光束。 此外，提供二极管泵浦，多轴模式，腔内非线性转换激光器，并且包括定义谐振腔的至少两个谐振器镜，激光晶体和位于谐振腔中的非线性转换装置。 非线性转换装置也位于谐振器腔中。 二极管泵浦源将激光束提供给激光晶体，并产生具有入射在非线性转换装置上的多个轴向模式的激光晶体光束。 结果是具有小于3％的％RMS噪声的非线性转换输出光束。
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公开(公告)号：US5812308A
公开(公告)日：1998-09-22
申请号：US575368
申请日：1995-12-20
IPC分类号： H01S3/081 , H01S3/0941 , H01S3/098 , H01S3/23 , H01S3/00
CPC分类号： H01S3/09415 , H01S3/0815 , H01S3/094053 , H01S3/1068 , H01S3/1109 , H01S3/1118 , H01S3/2341
摘要： A laser system has a high reflector and an output coupler defining a laser cavity with an optical axis. Included is a pump source, a mode-locking apparatus and at least one fold mirror positioned in the laser cavity along the optical axis. A gain media is positioned adjacent to the fold mirror. The gain media has an overlap region where an intracavity beam entering the gain media substantially overlaps the intracavity beam exiting the gain media.
摘要翻译： 激光系统具有高反射器和限定具有光轴的激光腔的输出耦合器。 包括泵源，模式锁定装置和沿着光轴定位在激光腔中的至少一个折叠镜。 增益介质位于折叠镜附近。 增益介质具有重叠区域，其中进入增益介质的腔内光束基本上与离开增益介质的腔内光束重叠。
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公开(公告)号：US5651020A
公开(公告)日：1997-07-22
申请号：US432301
申请日：1995-05-01
IPC分类号： H01S3/0933 , H01S3/08 , H01S3/081 , H01S3/094 , H01S3/0941 , H01S3/16
CPC分类号： H01S3/08 , H01S3/09415 , H01S3/08072 , H01S3/081 , H01S3/094053 , H01S3/1611 , H01S3/1673
摘要： A high power diode pumped laser is disclosed which has at least one resonator mirror and an output coupler. At least one laser crystal with strong thermal focussing properties is included. The laser includes at least one diode pump source supplying a pump beam to the laser crystal, producing a thermal lens in the laser crystal. The combination of the laser crystal, thermal lens, resonator mirrors and output coupler create a confocal-to-concentric resonator. An output beam is generated, which may be polarized. Further, a Q-switch may be included in the resonator, particularly when the laser crystal is Nd:YAG.
摘要翻译： 公开了一种高功率二极管泵浦激光器，其具有至少一个谐振镜和输出耦合器。 包括至少一个具有强热聚焦特性的激光晶体。 该激光器包括至少一个二极管泵浦源，将泵浦光束提供给激光晶体，在激光晶体中产生热透镜。 激光晶体，热透镜，谐振镜和输出耦合器的组合产生共聚焦同心谐振器。 产生输出光束，其可以是极化的。 此外，谐振器中可以包括Q开关，特别是当激光晶体是Nd：YAG时。
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公开(公告)号：US5638388A
公开(公告)日：1997-06-10
申请号：US446195
申请日：1995-05-19
申请人： William L. Nighan, Jr. , John Cole
发明人： William L. Nighan, Jr. , John Cole
CPC分类号： H01S3/109 , H01S3/081 , H01S3/094053 , H01S3/09415 , H01S3/13 , H01S3/1611 , H01S3/1643 , H01S3/1653 , H01S3/1673
摘要： A diode pumped, multiaxial mode, intracavity frequency doubled laser resonator has high amplitude stability, meaning that the percent root mean square noise (%RMS) of the doubled output beam power is low. A diode pump source supplies a pump beam to a laser crystal positioned in a resonator cavity and produces a multiaxial mode infrared beam that is incident on a doubling crystal, also positioned in the resonator. A frequency doubled output beam is produced that has an RMS of less than 3%, and in some cases less than 0.2%. The laser is highly efficient, provides high output power, and its output beam is of high spatial quality.
摘要翻译： 二极管泵浦，多轴模式，腔内倍频激光谐振器具有高振幅稳定性，意味着双倍输出光束功率的均方根噪声百分比（％RMS）低。 二极管泵浦源将泵浦光束提供给位于谐振器腔中的激光晶体，并产生入射在双晶晶体上并且位于谐振器中的多轴模式红外光束。 产生频率倍增的输出光束，其RMS小于3％，在某些情况下小于0.2％。 激光器高效，提供高输出功率，其输出光束具有高空间质量。
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公开(公告)号：US5608742A
公开(公告)日：1997-03-04
申请号：US516586
申请日：1995-08-18
申请人： Alan B. Petersen
发明人： Alan B. Petersen
IPC分类号： H01S3/094 , H01S3/0941 , H01G3/30
CPC分类号： H01S3/09415 , H01S3/094053 , H01S3/094073
摘要： A laser or laser amplifier apparatus has a diode pump source producing a polarized pump beam. A laser head includes a gain medium that produces an output beam. One or more optical fibers are coupled to the diode pump source and deliver the pump beam to the laser head. A depolarization device is coupled to the diode pump source, laser head or optical fiber and produces an depolarized pump beam. By depolarizing the output beam, movement, including rotation, of the pump source does not comprise the output beam produced from the laser head.
摘要翻译： 激光或激光放大器装置具有产生偏振泵浦光束的二极管泵浦源。 激光头包括产生输出光束的增益介质。 一个或多个光纤耦合到二极管泵浦源并将泵浦光束传送到激光头。 去极化装置耦合到二极管泵浦源，激光头或光纤并且产生去极化的泵浦光束。 通过使输出光束去极化，泵源的运动（包括旋转）不包括从激光头产生的输出光束。
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公开(公告)号：US5590149A
公开(公告)日：1996-12-31
申请号：US527564
申请日：1995-09-13
申请人： Dennis Reeder
发明人： Dennis Reeder
CPC分类号： G02B7/1825 , H01S3/086
摘要： A mirror mount assembly has a base plate positioned at one end of a laser resonator, and a movable plate spaced from and positioned substantially parallel to the base plate. One or more elastic springs are connected between the base plate and the moveable plate to provide tip and tilt of the movable plate and translation of the moveable plate away from or towards the base plate. The elastic springs include a bushing made of an elastic material, and at least three elastic dimples formed in the bushing circumferentially in a plane across a bushing longitudinal axis. Further, the elastic spring has a bushing made of an elastic material capable of elastic expansion and contraction. The bushing includes a threaded interior side and a longitudinal axis from a first open end of the bushing to a second open end of the bushing. At least three elastic dimples are formed in the bushing circumferentially in a plane across the bushing longitudinal axis and extend into the bushing threaded interior side to flexibly contact one or more threads of a screw received in the bushing threaded interior. The dimples permit rotation of the bushing and screw relative to each other to advance and retract the screw along the longitudinal axis, and provide a selected and maintainable adjustment of the screw along the bushing's longitudinal axis with reduced mechanical hysteresis of the screw.
摘要翻译： 反射镜安装组件具有位于激光谐振器的一端的基板，以及与基板间隔开并且基本上平行于基板定位的可动板。 一个或多个弹性弹簧连接在基板和可移动板之间以提供可移动板的尖端和倾斜以及可移动板远离或朝向基板的平移。 弹性弹簧包括由弹性材料制成的衬套，以及在衬套纵向轴线上的平面中沿圆周形成的至少三个弹性凹坑。 此外，弹性弹簧具有能够弹性膨胀和收缩的由弹性材料制成的衬套。 衬套包括螺纹内侧和从衬套的第一开口端到衬套的第二开口端的纵向轴线。 至少三个弹性凹坑在衬套纵向轴线的平面内圆周地形成，并且延伸到衬套螺纹内侧中，以柔性地接触容纳在衬套螺纹内部中的螺钉的一个或多个螺纹。 凹坑允许衬套和螺钉相对于彼此旋转以沿着纵向轴线推进和缩回螺钉，并且沿着衬套的纵向轴线提供螺杆的选择和可维护的调节，同时减小螺杆的机械滞后。
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8.发明授权
公开(公告)号：US5457707A
公开(公告)日：1995-10-10
申请号：US111083
申请日：1993-08-24
申请人： Mark S. Sobey , James B. Clark , Vincent J. Newell
发明人： Mark S. Sobey , James B. Clark , Vincent J. Newell
CPC分类号： G02F1/39
摘要： A tunable laser system having a wide tunable range, and narrow line widths, achieves relatively high output powers. The tunable laser system includes a master optical parametric oscillator which generates a seed beam, and a power optical parametric oscillator which is responsive to the seed beam to generate a narrow line width, high power output beam. The master OPO and power OPO comprise gain media consisting of BBO, tunable over a range from about 400 nanometers to more than 2000 nanometers. The master OPO includes line narrowing elements, such as a tunable grating, which limits the line width of the output beam to less than one wave number (centimeter.sup.-1). Pump energy is supplied to the master OPO and power OPO using a Nd:YAG laser with a harmonic generator, so that the second, third, or fourth harmonics of the primary 1064 nanometer line of YAG can be used to pump the BBO crystals. The power OPO may be an unstable resonator.
摘要翻译： 具有宽可调范围和窄线宽的可调谐激光系统实现相对较高的输出功率。 可调谐激光系统包括产生种子光束的主光学参量振荡器和响应于种子束以产生窄线宽度的高功率输出光束的功率光参量振荡器。 主OPO和功率OPO包括由BBO组成的增益介质，可调范围从约400纳米到超过2000纳米。 主OPO包括线变窄元件，例如可调光栅，其将输出光束的线宽限制为小于一个波数（厘米-1）。 使用具有谐波发生器的Nd：YAG激光器将泵浦能量提供给主OPO并对OPO供电，使得YAG的主1064纳米线的第二，第三或第四谐波可用于泵浦BBO晶体。 功率OPO可能是不稳定的谐振器。
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公开(公告)号：US5365366A
公开(公告)日：1994-11-15
申请号：US58743
申请日：1993-04-29
CPC分类号： G02F1/39 , H01S3/094026
摘要： A synchronously pumped optical parametric oscillator (OPO) using a temperature-tuned 90.degree. phase matched LBO crystal is disclosed which provides a broad selection of output wavelengths. A Ti:Sapphire pump source having a cavity length matched to the OPO cavity length pumps a cavity with an LBO crystal located at the cavity waist of the cavity mode.
摘要翻译： 公开了使用温度调节90°相位匹配LBO晶体的同步泵浦光参量振荡器（OPO），其提供广泛的输出波长选择。 具有与OPO腔体长度匹配的腔长度的Ti：蓝宝石泵浦源将腔体与位于空腔模式的空腔腰部处的LBO晶体泵送。
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公开(公告)号：US5272713A
公开(公告)日：1993-12-21
申请号：US937358
申请日：1992-08-27
CPC分类号： H01S3/091 , H01S3/07 , H01S3/08072 , H01S3/08081 , H01S3/115 , H01S3/2316
摘要： A pulsed laser system capable of operating at higher repetition rates, while maintaining the efficiency and beam quality of the output pulses comprises first and second gain media with one or more pump energy transducers, such as flashlamps, coupled with each of the gain media. A power supply generates a first sequence of pulses of input power and a second sequence of pulses of input power which drive respective subsets of the pump energy transducers in an independent timing relationship. Thus, two non-aligned 50 Hz sequences of input pulses which are interleaved generate an output pulse stream at 100 Hz from the laser system with the efficiency, beam quality, and average power comparable to that of a 50 Hz laser. By pumping subsets of the pump energy transducers coupled to a laser system in an interleaved fashion, higher repetition rates may be achieved with better output beam quality and higher average power than has been obtainable with prior art systems. The non-aligned timing also allows for variable pulse timing offsets.
摘要翻译： 能够以更高的重复率操作，同时保持输出脉冲的效率和光束质量的脉冲激光系统包括具有与每个增益介质耦合的一个或多个泵浦能量换能器（例如闪光灯）的第一和第二增益介质。 电源产生输入功率的第一脉冲序列和输入功率脉冲的第二序列，其以独立的时序关系驱动泵浦能量换能器的相应子集。 因此，交错的两个不对准的50Hz输入脉冲序列产生具有与50Hz激光器相当的效率，光束质量和平均功率的来自激光系统的100Hz输出脉冲流。 通过以交替方式泵送耦合到激光系统的泵浦能量转换器的子集，可以以比现有技术系统可获得的更好的输出光束质量和更高的平均功率实现更高的重复率。 不对准定时还允许可变脉冲定时偏移。
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