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1.发明授权
公开(公告)号：US4789212A
公开(公告)日：1988-12-06
申请号：US945736
申请日：1986-12-22
CPC分类号： G02B6/126
摘要： An optical polarizer is described in which a propagation layer, i.e., a titanium diffused light guiding region in a lithium niobate Z-cut crystal, is covered with a dielectric buffer layer of ZnO. The dielectric buffer layer is covered by a meal layer, typically aluminum, although gold or silver can be used. The thickness of the buffer is chosen so as to increase the attenuation of TM modes of radiation in the waveguide relative to TE modes. The buffer layer thickness can fall within a broad range and is not required to fall within a very precise range to achieve a peak level of attenuation.
摘要翻译： 描述了一种光学偏振器，其中在铌酸锂Z切割晶体中的传播层即钛扩散导光区被ZnO的介电缓冲层覆盖。 介电缓冲层由膳食层覆盖，通常为铝，尽管可以使用金或银。 选择缓冲器的厚度以增加相对于TE模式的波导中TM模辐射的衰减。 缓冲层厚度可以落在宽范围内，并且不需要落在非常精确的范围内以实现衰减的峰值水平。
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公开(公告)号：US5164947A
公开(公告)日：1992-11-17
申请号：US662179
申请日：1991-02-28
摘要： A laser is disclosed comprising: a source of optical pumping radiation; a lasant rod; an input mirror; two quarter-wave plates; polarizing means, adjacent to a quarter-wave plate, for polarizing said lasant light radiated from said rod; second harmonic generating means for producing an output at twice the frequency at which said rod lases; and an output coupler.
摘要翻译： 公开了一种激光器，包括：光泵浦辐射源; 一个野狗 输入镜; 两个四分之一波片; 与四分之一波片相邻的极化装置，用于使从所述杆辐射的所述野生光偏振; 二次谐波发生装置，用于产生所述杆的两倍频率的输出; 和输出耦合器。
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公开(公告)号：US5263038A
公开(公告)日：1993-11-16
申请号：US830709
申请日：1992-02-03
申请人： Gregory J. Lukas , Daniel M. Ott
发明人： Gregory J. Lukas , Daniel M. Ott
CPC分类号： H01S3/109 , H01S3/042 , H01S3/08031 , H01S3/08054 , H01S3/08072
摘要： A method is provided for controlling the output frequency of a laser having a lasant gain medium which is characterized by at least two gain curve distributions over a range of lasant frequencies and having a laser cavity which is characterized by at least one resonant frequency within one gain curve distribution. The method comprises the steps of: locating in the laser cavity a first Lyot filter which has a transmission band which favors the frequency range of one gain curve distribution in preference to the frequency range of the other gain curves; and locating in the cavity a second Lyot filter which has a transmission band which favors said one resonant frequency within the frequency range of the one gain curve, whereby an essentially single frequency output is obtained.
摘要翻译： 提供了一种用于控制具有惰性增益介质的激光器的输出频率的方法，其特征在于在惰性频率的范围上具有至少两个增益曲线分布，并且具有激光腔，其特征在于在一个增益内具有至少一个谐振频率 曲线分布。 该方法包括以下步骤：在激光腔中定位第一Lyot滤波器，其具有优于其它增益曲线的频率范围的有利于一个增益曲线分布的频率范围的传输频带; 并且在所述腔中定位第二Lyot滤波器，其具有有利于所述一个增益曲线的频率范围内的所述一个谐振频率的传输频带，由此获得基本上单个的频率输出。
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4.发明授权Method of aligning and attaching optical fibers to substrate optical waveguides and substrate optical waveguide having fibers attached thereto 失效将光纤对准和附接到基板光波导的方法和具有附接到其上的光纤的基板光波导
公开(公告)号：US4796975A
公开(公告)日：1989-01-10
申请号：US50254
申请日：1987-05-14
CPC分类号： G02B6/30 , Y10S359/90 , Y10T156/10
摘要： A method of aligning and attaching optical fibers to substrate optical waveguides is disclosed. In accordance with the method, one or more slabs of preferentially etchable material and a waveguide substrate are placed adjacent each other face down on a flat surface for aligning the tops of the slabs with the top of the waveguide. A backing plate is secured to the back surface to hold the entire assembly together. The preferentially etchable material is thereafter etched to form v-grooves in alignment with the light guiding region of the waveguide substrate. Thereafter, optical fibers are secured thereto in an optically aligned manner with the light guiding region. In another aspect, the invention is directed to a fiber pigtailed waveguide substrate manufactured in accordance with the method.
摘要翻译： 公开了一种将光纤对准和附接到衬底光波导的方法。 根据该方法，优选可蚀刻材料的一个或多个板坯和波导基板彼此相邻放置在平坦表面上，以使板的顶部与波导的顶部对准。 背板被固定到后表面以将整个组件保持在一起。 然后蚀刻优先蚀刻的材料以形成与波导基板的导光区域对准的V形槽。 此后，以光学对准的方式将光纤固定到光导区域。 另一方面，本发明涉及一种根据该方法制造的光纤尾纤波导基片。
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