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91. 发明授权

US5991317A Retinal photocoagulator including diode pumped, multi-axial mode intracavity doubled laser 失效
标题翻译：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。

92. 发明授权

US5982789A Pulsed laser with passive stabilization 失效
标题翻译：脉冲激光器被动稳定
公开(公告)号：US5982789A
公开(公告)日：1999-11-09
申请号：US865508
申请日：1997-05-30
申请人： Larry R. Marshall , Wayne E. Kelsoe , David M. Buzawa
发明人： Larry R. Marshall , Wayne E. Kelsoe , David M. Buzawa
IPC分类号： H01S3/04 , H01S3/06 , H01S3/0941 , H01S3/10 , H01S3/109
CPC分类号： H01S3/09415 , G02F1/39 , H01S3/005 , H01S3/025 , H01S3/0401 , H01S3/061 , H01S3/0615 , H01S3/0627 , H01S3/0933 , H01S3/094053
摘要： A diode pumped doubling system employs a pump diode, a crystal and doubler in a laser cavity with the diode and is operated in a pulsed or low duty cycle pumping regimen, while the cavity length is sufficiently short to stabilize the transient responses to pulsed diode operation and produce stable and known or controlled energy output under the non-CW pumping regimen. The construction allows stable output to be maintained with much looser temperature control, and to be achieved during the initial turn-on interval of the laser diode. In a preferred embodiment, the device employs a doubler which is clamped across its non-critical axis, and is operated with a control system which creates isotherms in the active mode volume. The controller operates one or more separate heat sources and/or sinks to preheat the diode source or doubling crystal to maintain an oriented thermal gradient, and the rate or direction at which the isotherm migrates across the mode volume is controlled in accordance with the forthcoming pulse sequence to maintain effectively stable conditions during laser operation. The thermal control system may include sink, heater and control elements for pre-heating the laser diode before actuation, and during quiet intervals.
摘要翻译：二极管泵浦倍增系统在具有二极管的激光腔中采用泵浦二极管，晶体和倍增器，并且以脉冲或低占空比循环泵浦方案操作，而腔长度足够短以稳定对脉冲二极管操作的瞬态响应并在非CW泵送方案下产生稳定且已知或受控的能量输出。该结构允许以更宽松的温度控制保持稳定的输出，并且在激光二极管的初始接通间隔期间实现。在优选实施例中，该装置采用跨越其非临界轴线夹紧的倍增器，并且通过在活动模式体积中产生等温线的控制系统进行操作。控制器操作一个或多个单独的热源和/或吸收器以预热二极管源或加倍晶体以维持取向的热梯度，并且等温线跨越模式体积迁移的速率或方向根据即将到来的脉冲以在激光操作期间保持有效的稳定条件。热控制系统可以包括用于在致动之前以及在安静间隔期间预激光二极管的吸收器，加热器和控制元件。

93. 发明授权

US5963575A Q-switched laser system, in particular for laser lithotripsy 失效
标题翻译： Q切换激光系统，特别适用于激光碎石术
公开(公告)号：US5963575A
公开(公告)日：1999-10-05
申请号：US968765
申请日：1997-09-22
申请人： Gerhard Muller , Pavel Pashinin
发明人： Gerhard Muller , Pavel Pashinin
IPC分类号： A61B18/26 , H01S3/08 , H01S3/081 , H01S3/091 , H01S3/109 , H01S3/113
CPC分类号： H01S3/08 , A61B18/26 , H01S3/081 , H01S3/091 , H01S3/109 , H01S3/113 , H01S3/08013 , H01S3/08059
摘要： A Q-switched laser system, in particular for laser lithotripsy, has a laser-active medium (2.1) in a resonator, an optical pumping arrangement (2.3) and a passive Q-switch (3.2). A resonator extension (1.2) having an optical waveguide is associated to the laser-active medium (2.1) in order to increase the laser pulse length.
摘要翻译：特别是用于激光碎石术的Q开关激光系统在谐振器中具有激光活性介质（2.1），光泵浦装置（2.3）和无源Q开关（3.2）。具有光波导的谐振器延伸部（1.2）与激光活性介质（2.1）相关联，以增加激光脉冲长度。

94. 发明授权

US5946129A Wavelength conversion apparatus with improved efficiency, easy adjustability, and polarization insensitivity 失效
标题翻译：波长转换装置具有改进的效率，易调整性和极化不敏感性
公开(公告)号：US5946129A
公开(公告)日：1999-08-31
申请号：US920884
申请日：1997-08-29
申请人： Chang-Qing Xu , Hideaki Okayama , Keisuke Shinozaki
发明人： Chang-Qing Xu , Hideaki Okayama , Keisuke Shinozaki
IPC分类号： H01S3/109 , H01S5/10 , H01S5/50 , G02F1/39
CPC分类号： H01S3/109 , H01S5/1071 , H01S5/50
摘要： A wavelength conversion apparatus has an optical amplifier, a wavelength converter, and an optical coupler coupled to form an optical ring resonator. The optical amplifier supplies pump light. The wavelength converter generates converted light, either from the pump light alone or by interaction between the pump light and signal light supplied from a signal source. The optical coupler extracts the converted light. The optical ring resonator preferably includes a tunable optical bandpass filter that defines the wavelength of the pump light. The optical coupler may also couple the signal light into the optical ring resonator, preferably through a polarization beam splitter and at least one polarization rotator, making the apparatus insensitive to the polarization of the signal light.
摘要翻译：波长转换装置具有耦合以形成光环谐振器的光放大器，波长转换器和光耦合器。光放大器提供泵浦光。波长转换器可以单独从泵浦光或通过泵浦光与从信号源提供的信号光之间的相互作用产生转换的光。光耦合器提取转换的光。光环谐振器优选地包括限定泵浦光的波长的可调光学带通滤波器。光耦合器还可以将信号光耦合到光环谐振器中，优选地通过偏振分束器和至少一个偏振旋转器，使得该装置对信号光的偏振不敏感。

95. 发明授权

US5943350A Laser light generating apparatus 失效
标题翻译：激光发生装置
公开(公告)号：US5943350A
公开(公告)日：1999-08-24
申请号：US869772
申请日：1997-06-05
申请人： Shiro Shichijyo
发明人： Shiro Shichijyo
IPC分类号： G02F1/35 , G02F1/37 , H01S3/109 , H01S3/10
CPC分类号： G02F1/37 , H01S3/109 , G02F2001/3509 , G02F2001/3542
摘要： An object of the invention is to provide a laser light generating apparatus capable of minimizing loss in a resonator to give a high efficiency of wavelength conversion. A resonator comprises two reflecting mirrors 1 and 2 arranged in linear relationship and a non-linear optical crystal 3 disposed in the resonator. The non-linear optical crystal 3 is formed in a trapezoid shape so that a pair of input and output sides opposite to each other are tilted with respect to the optical propagation axis. The fundamental laser light is introduced along the optical propagation axis into the optical resonator, converted to a second harmonic by the non-linear crystal 3, and released outside from the reflecting mirror 2. It is made possible to adjust the beam diameter and convergence angle of the laser light on the light incidence plane(Y-Z plane) when the laser light passes the input and output sides of the non-linear optical crystal 3. For example, the incident plane is made to be consistent with a plane where the acceptance angle of the non-linear optical crystal 3 is limited to a small degree, thus increasing the efficiency of wavelength conversion.
摘要翻译：本发明的目的是提供一种激光发生装置，其能够最小化谐振器的损耗，从而提供高效率的波长转换。谐振器包括以线性关系布置的两个反射镜1和2以及设置在谐振器中的非线性光学晶体3。非线性光学晶体3形成为梯形，使得彼此相对的一对输入和输出侧相对于光学传播轴线倾斜。基本激光沿着光传播轴被引入到光学谐振器中，通过非线性晶体3转换成二次谐波，并从反射镜2释放出外部。可以调整光束直径和会聚角度的激光通过非线性光学晶体3的输入和输出侧时的入射平面（YZ平面）上的激光。例如，使入射面与接受角度的平面一致非线性光学晶体3被限制在很小程度，从而提高了波长转换的效率。

96. 发明授权

US5898717A Third harmonic generation apparatus 失效
标题翻译：三次谐波发生装置
公开(公告)号：US5898717A
公开(公告)日：1999-04-27
申请号：US788772
申请日：1997-01-24
申请人： Yusong Yin
发明人： Yusong Yin
IPC分类号： G02F1/35 , H01S3/109 , H05K3/00 , H01S3/10
CPC分类号： H01S3/109 , G02F2001/354 , H05K3/0017
摘要： Third harmonic generated from intra-cavity frequency tripled resonator is disclosed in which type II phase matching crystal is used as the tripler. Type I phase matching is used for second harmonic generation. The resonator efficiently converts the fundamental laser frequency to its third harmonic laser beam. The laser is highly efficient with high third harmonic output stability. Overall conversion efficiency exceeds 25% and preferably is 50% or higher.
摘要翻译：公开了从腔内频率三倍频谐振器产生的三次谐波，其中使用II型相位匹配晶体作为三倍频。 I型相位匹配用于二次谐波生成。谐振器有效地将基本激光频率转换成其三次谐波激光束。激光器高效率，高三次谐波输出稳定性。总转换效率超过25％，优选为50％以上。

97. 发明授权

US5892789A Solid-state laser apparatus 失效
标题翻译：固态激光装置
公开(公告)号：US5892789A
公开(公告)日：1999-04-06
申请号：US899889
申请日：1997-07-24
申请人： Koji Yasui , Takafumi Kawai , Tetsuo Kojima , Susumu Konno
发明人： Koji Yasui , Takafumi Kawai , Tetsuo Kojima , Susumu Konno
IPC分类号： H01S3/07 , H01S3/08 , H01S3/091 , H01S3/0941 , H01S3/10 , H01S3/109 , H01S3/136 , H01S3/16 , H01S3/23 , H01S3/14
CPC分类号： H01S3/025 , H01S3/07 , H01S3/10 , H01S3/0407 , H01S3/042 , H01S3/08072 , H01S3/093 , H01S3/094057 , H01S3/0941 , H01S3/109
摘要： A solid-state laser apparatus comprises a plurality of solid-state materials each having an active solid-state medium and arranged in a row with a predetermined space on an optical axis of light incident thereon. An optical rotation material and an angle adjusting instrument for adjusting an angle between the optical rotation material and the optical axis of incident light are disposed in at least a space selected from among the plural spaces. The laser apparatus further comprises a laser optical system for extracting a laser beam emitted by the plural solid-state materials.
摘要翻译：固体激光装置包括多个固态材料，每个固态材料具有活性固态介质，并且在入射到其上的光的光轴上以预定的空间排成一行。用于调整光旋转材料与入射光的光轴之间的角度的光学旋转材料和角度调节装置设置在从多个空间中选择的至少一个空间中。激光装置还包括用于提取由多个固态材料发射的激光束的激光光学系统。

98. 发明授权

US5870416A Semi-monolithic ring cavity for second harmonic generation of laser frequency 失效
标题翻译：用于二次谐波产生激光频率的半单片环形腔
公开(公告)号：US5870416A
公开(公告)日：1999-02-09
申请号：US886510
申请日：1997-07-01
申请人： Tai Hyan Yoon , Myung Sai Chung
发明人： Tai Hyan Yoon , Myung Sai Chung
IPC分类号： H03H9/00 , H01S3/06 , H01S3/083 , H01S3/109 , H01S3/10
CPC分类号： H01S3/109
摘要： A semi-monolithic ring cavity for a second harmonic generation of laser frequency including a nonlinear crystal, an input mirror, an output mirror, a first point, at which a fundamental wave is incident onto the input mirror, a second point, at which the fundamental wave is incident onto the output mirror along with a second harmonic wave, and a third point, at which the fundamental wave reflects totally from a side surface of the nonlinear crystal. One of the input and output mirrors is coated with a dielectric and separated from the nonlinear crystal whereas the other mirror is formed on the nonlinear crystal. The fundamental wave forms a ring cavity in such a manner that the second harmonic wave is generated only along an axis extending through the first and second points. The semi-monolithic ring cavity exhibits a stable frequency characteristic and a high transform efficiency when a second-harmonic generation of continuous-wave laser frequency is carried out. Accordingly, the semi-monolithic ring cavity is expected to provide desired effects in a variety of technical fields. Using the high frequency tuning characteristic of the semi-monolithic ring cavity, it is also possible to develop an optical frequency standard exhibiting a frequency stability higher than those of conventional optical frequency standards.
摘要翻译：一种用于二次谐波产生激光频率的半单片环形空腔，包括非线性晶体，输入反射镜，输出反射镜，基波入射到输入反射镜上的第一点，第二点，基波与二次谐波一起入射到输出镜上，第三点基本波从非线性晶体的侧面完全反射。输入和输出反射镜中的一个涂覆有电介质并与非线性晶体分离，而另一个反射镜形成在非线性晶体上。基波以这样的方式形成环形腔，使得仅沿着延伸穿过第一和第二点的轴产生二次谐波。当进行连续波激光频率的二次谐波生成时，半单片环形腔呈现稳定的频率特性和高的变换效率。因此，期望半单片环腔在各种技术领域中提供期望的效果。使用半单片环形腔的高频调谐特性，还可以开发出具有高于常规光频标准的频率稳定性的光频标准。

99. 发明授权

US5856996A Compact efficient solid state laser 失效
标题翻译：紧凑型固态激光器
公开(公告)号：US5856996A
公开(公告)日：1999-01-05
申请号：US226786
申请日：1994-04-12
申请人： Peter S. Durkin , Peter Peuser
发明人： Peter S. Durkin , Peter Peuser
IPC分类号： H01S3/07 , H01S3/08 , H01S3/109 , H01S3/23
CPC分类号： H01S3/083 , H01S3/109 , H01S3/07 , H01S3/0816
摘要： The invention provides a compactly built solid state laser, which can be pumped by high power semiconductor laser diodes and uses two or more laser crystals as the laser gain or amplification media, which crystals can also contain the resonator mirrors. As desired per the invention, linear, monolithic folded or ring-shaped laser resonators can be formed to provide very efficient production of frequency doubled laser radiation.
摘要翻译：本发明提供了一种紧凑的固态激光器，其可以由大功率半导体激光二极管泵浦并且使用两个或更多个激光晶体作为激光增益或放大介质，该晶体也可以包含谐振器镜。根据本发明的要求，可以形成线性，单片折叠或环形激光谐振器，以提供非常有效的倍频激光辐射的产生。

100. 发明授权

US5841801A Double wavelength laser 失效
标题翻译：双波长激光
公开(公告)号：US5841801A
公开(公告)日：1998-11-24
申请号：US762167
申请日：1996-12-09
申请人： Yoshikazu Suzuki
发明人： Yoshikazu Suzuki
IPC分类号： H01S3/082 , H01S3/08 , H01S3/094 , H01S3/0941 , H01S3/109 , H01S5/00 , H01S3/10
CPC分类号： H01S3/09415 , H01S3/0809 , H01S3/109
摘要： In order to make an attempt to reduce the size of the laser and to simplify the structure, in a double wavelength laser of the invention, when an optical path switching mirror 3 is located at a position where light is not reflected, emitted light of a laser diode 1 is converted into parallel light with a collimator lens 2, light is collected to an Er: YAG crystal 6 with a collector lens 4 for pumping, light output by the pumping of the Er: YAG crystal 6 is amplified with a total reflective mirror 5 and an output mirror 7 and passes through a folded mirror 8 from the output mirror 7, and light is guided to a light guide unit 10 with a collector lens 9 to be emitted outside, and when the optical path conversion mirror 3 is located at a position where light is reflected, the emitted light of the laser diode 1 is reflected in 90 degrees direction with the optical path switching mirror 3 and is guided to the light guide unit 10 with a collector lens 11 to be emitted outside.
摘要翻译：为了试图减小激光的尺寸并简化结构，在本发明的双波长激光器中，当光路切换镜3位于光未被反射的位置时，发射的光激光二极管1由准直透镜2转换为平行光，用收集透镜4将光收集到Er：YAG晶体6用于泵浦，通过泵浦Er：YAG晶体6的光输出被全反射反射镜5和输出镜7，并从输出镜7通过折叠镜8，并且将光引导到导光单元10，收集透镜9被发射到外部，并且当光路转换镜3位于在光被反射的位置处，激光二极管1的发射光与光路切换镜3反射90度方向，并且利用收集透镜11被引导到导光单元10以被发射到外部。

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