公开(公告)号：US07113529B2

公开(公告)日：2006-09-26

申请号：US10389158

申请日：2003-03-14

申请人： Vernon Seguin ,  Leon Newman ,  R. Russel Austin ,  Anthony DeMaria

发明人： Vernon Seguin ,  Leon Newman ,  R. Russel Austin ,  Anthony DeMaria

IPC分类号： G02H6/26

CPC分类号： H01S3/2232 ,  H01S3/0346 ,  H01S3/09702 ,  H01S3/106 ,  H01S3/115

摘要： An electro-optical switch includes an optical assembly arranged to transmit laser-radiation. The optical assembly comprises an active optical crystal. On one of two opposite surfaces of the crystal is an optical window formed from a material having a refractive index lower than the material of the crystal. Heat deposited, as a result of transmission of the laser-radiation, at the surface of the crystal in contact with the widow is transferred to the window, thereby reducing the potential for optical damage to the crystal surface. The window is sufficiently thick that it has an odd integer multiple of quarter-wavelengths optical thickness at a wavelength about equal to a wavelength of the laser-radiation, thereby behaving as an antireflection device for the crystal at that wavelength. In one embodiment of the optical assembly, the active optical crystal is a cadmium telluride crystal and the window is formed from cesium bromide.

摘要翻译： 电光开关包括布置成透射激光辐射的光学组件。 光学组件包括有源光学晶体。 在晶体的两个相对表面中的一个表面上是由折射率低于晶体材料的材料形成的光学窗口。 作为透射激光辐射的结果，在与寡妇接触的晶体的表面上进行热沉积被转移到窗口，由此降低了对晶体表面的光学损伤的可能性。 窗口足够厚，使得其具有在等于激光辐射波长的波长处的四分之一波长光学厚度的奇整数倍，从而表现为在该波长处的晶体的抗反射装置。 在光学组件的一个实施例中，有源光学晶体是碲化镉晶体，窗口由溴化铯形成。