Experimental details are given of a novel, promising kind of double frequency laser—with power output of 0.8–1.4 mW, large frequency difference from 37 MHz to a longitudinal mode interval, and frequency stability of 10−5, and its potential uses are discussed.
© 1990 Optical Society of America
Shulian Zhang, Minxian Wu, and Guofan Jin, "Birefringent tuning double frequency He-Ne laser," Appl. Opt. 29, 1265-1267 (1990)