注入功率比可调控的双泵浦复合腔501 nm青光激光器

为了探究提高500?nm附近激光高准确度应用的理论和技术依据,本文采用双泵浦源复合腔结合非线性和频变换,实现腔内两种波长基频光无增益竞争,可提高基频光输出功率,同时在复合腔内进行多次非线性频率变换,通过调控基频光注入功率比,使腔内光子数配比达到1:1,从而有效提高了光-光转换效率及和频输出功率.对首次建立的理论模型进行...

Double pumped composite cavity 501 nm cyan laser with tunable injection power ratio

In order to explore the theoretical and technical basis for the application of high accuracy laser near 500 nm,a double pump source composite cavity combined with nonlinear sum frequency conversion is used to realize zero gain competition of two kinds of fundamental frequency laser in the cavity.This method can improve the output power of fundamental frequency laser,as well as carry out multiple nonlinear frequency conversion in the composite cavity.By adjusting the fundamental frequency laser injection power ratio,the photon number ratio in the cavity reaches 1∶1,which effectively improves the optical-to-optical conversion efficiency and sum-frequency output power.The theoretical model established for the first time is verified experimentally,and Nd:YAG and Nd:YVO₄are used as gain media to obtain 946 nm and 1064 nm fundamental frequency laser output respectively.LBO is sum-frequency crystal.The 946 nm and 1064 nm fundamental frequency laser without gain competition is realized by using the double pump source structure.By adjusting the injection LBO optical power,the sum frequency conversion efficiency and output power are researched when the injection power ratio is different.Finally,the maximum output power of 501 nm cyan laser is 923 mW when the injection power ratio is 1.48∶1(i.e.the photon number ratio in the cavity is 1∶1).