公开(公告)号：US07239654B2

公开(公告)日：2007-07-03

申请号：US10250454

申请日：2002-10-31

申请人： Masao Imaki ,  Syuhei Yamamoto ,  Youhei Mikami ,  Yoshihito Hirano ,  Makoto Satou ,  Kenji Masuda ,  Yasunori Nishimura ,  Yuji Masuyama

发明人： Masao Imaki ,  Syuhei Yamamoto ,  Youhei Mikami ,  Yoshihito Hirano ,  Makoto Satou ,  Kenji Masuda ,  Yasunori Nishimura ,  Yuji Masuyama

IPC分类号： H01S3/10

CPC分类号： H01S5/0687 ,  G01J9/00 ,  G02B1/02 ,  G02B5/3083 ,  G02B27/288 ,  H01S5/0612 ,  H01S5/0683

摘要： On a plate of birefringent crystal made of an LiNbO3 crystal or an LiTaO3 crystal, a conductive substance is adhered to the whole periphery of side surfaces of the plate that intersect an incident surface of a laser beam, thereby to form a wave plate. A polarizer is provided at the latter stage of the wave plate. A wavelength is monitored based on an output from the polarizer. With this arrangement, based on the use of the LiNbO3 crystal or the LiTaO3 crystal that can be manufactured by a large quantity at low cost, it is possible to obtain polarization characteristics and wavelength discrimination characteristics that are stable against environmental changes such as temperature and external stress, by suppressing the pyroelectric effect and the piezoelectric effect of these materials.

摘要翻译： 在由LiNbO 3·结晶或LiTaO 3·结晶制成的双折射晶体平板上，导电物质附着在板的侧表面的整个周边， 激光束的入射面，从而形成波片。 在波片的后段提供偏振器。 基于偏振器的输出监视波长。 利用这种布置，基于可以以低成本大量制造的LiNbO 3/3结晶或LiTaO 3·结晶的用途，可以获得极化 通过抑制这些材料的热电效应和压电效应，对温度和外部应力等环境变化稳定的特性和波长辨别特性。