Open AccessElectro-optically tunable microwave source based on composite-cavity microchip laser
Author(s) -
Yunfei Qiao,
Shilie Zheng,
Hao Chi,
Xiaofeng Jin,
Xianmin Zhang
Publication year - 2012
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.029090
Subject(s) - materials science , optics , microwave , laser , optoelectronics , birefringence , polarization (electrochemistry) , photodetector , diode , orthogonal polarization spectral imaging , physics , chemistry , quantum mechanics
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.