This paper reports on the optical generation of a rapidly tunable millimete
r-wave subcarrier for lidar-radar. The millimeter-wave signal is generated
by beating the output from two Nd:YVO4/MgO:LiNbO3 electrooptical monomode m
icrochip laser sections realized monolithically in a single composite cryst
al. The device has a continuous tuning range up to 45 GHz. The measured chi
rp rate is 3816 THz/s, the voltage sensitivity is 10.6 MHz/V, and the measu
red residual phase noise is -106 dBc/Hz at 10-kHz offset.