We report the experimental demonstration of a novel optical parametric oscillator approach to tunable optical frequency division. The beat frequency of the signal and idler subharmonic outputs of a tunable cw KTP optical parametric oscillator was phase locked to a microwave reference frequency source, which thus permitted precise determination of the output frequencies at approximately half the input pump frequency.
© 1992 Optical Society of America
D. Lee and N. C. Wong, "Tunable optical frequency division using a phase-locked optical parametric oscillator," Opt. Lett. 17, 13-15 (1992)