基于复合腔微芯片激光器的电光可调谐微波源

Electro-optically tunable microwave source based on composite-cavity microchip laser.

作者信息

Qiao Yunfei, Zheng Shilie, Chi Hao, Jin Xiaofeng, Zhang Xianmin

机构信息

Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China.

出版信息

Opt Express. 2012 Dec 17;20(27):29090-5. doi: 10.1364/OE.20.029090.

DOI:10.1364/OE.20.029090

PMID:23263146

Abstract

A compact and electric tuning microwave source based on a diode-pumped composite Nd:YAG-LiNbO(3) cavity microchip laser is demonstrated. The electro-optical element introduces an electric tuning intra-cavity birefringence which causes a tunable frequency difference between two spilt orthogonal polarization states of a longitude mode. Thus a continuously tunable microwave signal with frequency up to 14.12 GHz can be easily generated by beating the two polarization modes on a high speed photodetector.

摘要

展示了一种基于二极管泵浦复合Nd:YAG-LiNbO(3)腔微芯片激光器的紧凑型电调谐微波源。电光元件引入了电调谐腔内双折射，这导致纵向模式的两个分离正交偏振态之间产生可调频率差。因此，通过在高速光电探测器上使两个偏振模式拍频，可以轻松产生频率高达14.12 GHz的连续可调微波信号。