We report a new Nd:YAG-pumped picosecond optical parametric oscillator that generates bandwidth-limited pulses. Using two LiNbO3 crystals, it produces tunable, near-1.4-μm (signal-wave) pulses of 18-psec duration and Δν = 1.2 cm−1 FWHM (Δντ = 0.7). The output energy of the optical parametric oscillator in a signal wave is no less than 2 mJ with 10% energy stability. The key to this device is the injection of cw single-frequency GaAs diode-laser radiation. Using the injection of diode-laser radiation, we have measured the spectral intensity of a quantum noise at λ = 0.85 μm. The intensity was found to be 6 ± 2 W/cm2 cm−1 sr (theoretical value, 4.7 W/cm2 cm−1 sr).
© 1986 Optical Society of America
Original Manuscript: August 21, 1985
Manuscript Accepted: October 2, 1985
Published: January 1, 1986
S. A. Magnitskii, V. I. Malachova, A. P. Tarasevich, V. G. Tunkin, and S. D. Yakubovich, "Generation of bandwidth-limited tunable picosecond pulses by injection-locked optical parametric oscillators," Opt. Lett. 11, 18-20 (1986)