Abstract
We present experimental results of frequency tuning and stabilization of a type-II phase-matched potassium titanyl phosphate (KTP) doubly resonant optical parametric oscillator. Four tuning elements were employed to control the stability and tuning of the parametric oscillator. Discrete frequency tuning of a nearly degenerate optical parametric oscillator over a range of ~3 THz was obtained by crystal angle tuning and cavity-length scanning. We achieved continuous frequency tuning over a 0.5-GHz range through the use of temperature and electro-optic tuning of the KTP crystal. Using these frequency-control techniques, we phase locked the signal–idler beat frequency to an external microwave frequency source, thus demonstrating tunable optical frequency division. The power spectral density of the residual phase noise of the phase-locked signal–idler beat note was measured to be . Characteristics of two different cavity designs, their operations, tuning behavior, and stability issues are examined.
© 1993 Optical Society of America
Full Article | PDF ArticleMore Like This
S. T. Yang, R. C. Eckardt, and R. L. Byer
J. Opt. Soc. Am. B 10(9) 1684-1695 (1993)
C. D. Nabors, S. T. Yang, T. Day, and R. L. Byer
J. Opt. Soc. Am. B 7(5) 815-820 (1990)
A. Douillet, J.-J. Zondy, A. Yelisseyev, S. Lobanov, and L. Isaenko
J. Opt. Soc. Am. B 16(9) 1481-1498 (1999)