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1. 发明授权

US4685110A Optical component of a laser 失效
标题翻译：激光的光学部件
公开(公告)号：US4685110A
公开(公告)日：1987-08-04
申请号：US770717
申请日：1985-09-03
申请人： Gary W. DeBell , David L. Wright , Kenneth A. Ruddock , Alan B. Petersen , Lee R. Carlson , Marc K. von Gunten
发明人： Gary W. DeBell , David L. Wright , Kenneth A. Ruddock , Alan B. Petersen , Lee R. Carlson , Marc K. von Gunten
IPC分类号： G02B1/10 , H01S3/034 , H01S3/08
CPC分类号： H01S3/034 , G02B1/10
摘要： An optical component of a laser of the type including a hot gas plasma region, a cold gas region and producing large photon fluxed includes an optical element and a coating means on a surface of the optical element exposed to the photon fluxes. The coating means is comprised of a material adapted to minimize photoreduction of the optical element induced by exposure to the photon fluxes. Optical elements of the present invention include windows, birefringent plates, intra-cavity lenses, polarizers and mirrors.
摘要翻译：包括热气体等离子体区域，冷气体区域和产生大光子的激光器的光学部件包括光学元件和暴露于光子通量的光学元件的表面上的涂覆装置。涂层装置由适于最小化通过暴露于光子通量而引起的光学元件的光还原的材料构成。本发明的光学元件包括窗口，双折射板，腔内透镜，偏振器和反射镜。

2. 发明授权

US4809293A Optical component of a laser 失效
标题翻译：激光的光学部件
公开(公告)号：US4809293A
公开(公告)日：1989-02-28
申请号：US58498
申请日：1987-06-05
申请人： Gary W. DeBell , David L. Wright , Kenneth A. Ruddock , Alan B. Petersen , Lee R. Carlson , Marc K. Von Gunten
发明人： Gary W. DeBell , David L. Wright , Kenneth A. Ruddock , Alan B. Petersen , Lee R. Carlson , Marc K. Von Gunten
IPC分类号： G02B1/10 , H01S3/034 , H01S3/08
CPC分类号： G02B1/10 , H01S3/034
摘要： An optical component of a laser, of the type including a hot gas plasma region, a cold gas region, and producing large photon fluxes, includes an optical element and a coating means on a surface of the optical element exposed to the photon fluxes. The coating means is comprised of a material adapted to minimize photoreduction of the optical element induced by exposure to the photon fluxes. Optical elements of the present invention include windows, birefringent plates, intracavity lenses, polarizers and mirrors. The coating means includes a material selected from the group comprising Al.sub.2 O.sub.3, BeO, Y.sub.2 O.sub.3, MgO, B.sub.2 O.sub.3, Sc.sub.2 O.sub.3, LiF, NdF.sub.3, ThF.sub.4, Na.sub.3 AlF.sub.6, and mixtures thereof.
摘要翻译：包括热气体等离子体区域，冷气体区域和产生大光子通量的激光器的光学部件包括在暴露于光子通量的光学元件的表面上的光学元件和涂覆装置。涂层装置由适于最小化通过暴露于光子通量而引起的光学元件的光还原的材料构成。本发明的光学元件包括窗，双折射板，腔内透镜，偏振器和反射镜。涂层装置包括选自包括Al 2 O 3，BeO，Y 2 O 3，MgO，B 2 O 3，Sc 2 O 3，LiF，NdF 3，ThF 4，Na 3 AlF 6的材料及其混合物。

3. 发明授权

US5029174A Intermodulation product stabilized laser 失效
标题翻译：互调产品稳定激光器
公开(公告)号：US5029174A
公开(公告)日：1991-07-02
申请号：US446237
申请日：1989-12-05
申请人： Mark W. Anderson , Gary W. DeBell , Robert J. Schultz
发明人： Mark W. Anderson , Gary W. DeBell , Robert J. Schultz
IPC分类号： H01S3/137 , H01S3/139
CPC分类号： H01S3/137 , H01S3/139
摘要： A method and system for stabilizing the output frequencies of a multimode laser of the type which operates in at least three optical cavity modes includes detecting the intermodulation product frequency, using a suitable photodetector. The optical cavity modes may be either purely longitudinal for a single transverse mode, or may include radiation from multiple transverse cavity excitations, also with possible longitudinal plurality. The detector output is monitored for the intermodulation product beat signal which is contained in the detector current at the differences of the primary difference frequencies of the optical modes. A signal derived from the frequency of the intermodulation product term is compared with a reference signal, and the resulting error signal is driven to zero by varying the optical length of the laser oscillator cavity in response to the error signal, thereby causing the operating modes of the laser to be stabilized. Possible means of adjusting optical cavity length include, but are not limited to, thermal expansion or contraction of the resonator support structure which is used to establish the relative spacing of the laser's end mirrors, by piezoelectric or magnetostrictive means according to which one or both cavity mirrors is moved to change physical cavity length, or other electro-optic means which may be employed to adjust optical cavity length by control of the refractive index or optical path length presented by an intracavity optical element.
摘要翻译：用于稳定以至少三个光腔模式工作的类型的多模激光器的输出频率的方法和系统包括使用合适的光电检测器检测互调产物频率。对于单个横向模式，光腔模式可以是纯粹的纵向，或者可以包括来自多个横向空腔激励的辐射，也可能具有可能的纵向多个。监视检测器输出，用于在光模式的主要差频的差值处包含在检测器电流中的互调产物拍频信号。从互调乘积项的频率导出的信号与参考信号进行比较，并且通过响应于误差信号改变激光振荡器腔的光学长度而将所得到的误差信号驱动为零，从而导致激光要稳定。调整光腔长度的可能方法包括但不限于用于通过压电或磁致伸缩装置确定激光器端镜的相对间隔的谐振器支撑结构的热膨胀或收缩，根据该方法，一个或两个空腔移动镜子以改变物理空腔长度，或者可以通过控制由腔内光学元件呈现的折射率或光程长度来调节光腔长度的其它电光装置。

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