快速调谐355nm泵浦非共线光参量激光器

本文介绍一种快速调谐非共线光参量激光器。通过快速改变泵浦光与光参量激光器中非线性光学晶体光轴的夹角，实现光参量激光器的波长精确和快速调谐，高速谐范围从４００ｎｍ到７００ｎｍ，权衡利弊画整个可见光波段。泵浦光的入射方向由Ｎｅｗｐｏｒｔ公司生产的转台控制，精度可以达到０．００１＾０，转动速度最大可以达到１．５＾０／ｍｓ，转动角度、速度、方向均可由计算机通过ＲＳ２３２接口控制，保证了光参量激光器的波长精

Fast Tuning Noncollinear Optical Parametric Laser Pumped by 355 nm

We have developped a new type of fast tuning noncollinear optical parametric laser.The wavelength of the laser can be tuned fast and exactly by changing the angle between bump light and the optical axis of the nonlinear crystal.The wavelength can be tuned from 400 nm to 700 nm,covering the whole visible wave band.The orientation of bump light can be controlled by a rotating plate produce of by Newport corporation.It's resolution is 0.001 0 and it's fastest rotating speed can reach 1.5 0/ms.The rotating angle,speed and direction can be controlled through RS 232 serial port of a computer.This can ensure that the weavelength of the laser can be tuned fast and exactly.