【摘要】 <正> 一、引言 透明铁电陶瓷锆钛酸铅镧<简称PLZT>,是近代发展起来的一种新型电光材料。利用PLZT 9.0～9.2/65/35材料构成的克尔盒,对于He-Ne激光,其半波电压为960～1060伏/毫米,对比度大于1000:1,开态透光率可达15％以上,开关时间小于3微秒。图1示出了PLZT 9.2/65/35光强电压特性曲线。对于这样性能的光开关完全可应用于开关速度和插入损耗要求不高的双频激光检测系统中。本文重点介绍其在双频激光中的应用原理和结果。更多还原

【Abstract】 This paper instroduces an electro-optic shutter made of PLZT 9.2/65/35 ceramic wafer having quadratic transverse electro-optic effect. It can be used in bifrequency laser. Temperature stability at Vπ of PLZT is good and the change rate of Vπ with temperature for PLZT ceramic device is about 0.5%/℃. Practical application, for example in a JD-16 three meter laser length-measuring instrument demonstrates that it is not necessary to orient the axis direction of ceramics in advance. Besides, this device has the adventages of small size, good stability, easy operation and low cost.更多还原