We report quasi-phase-matched singly resonant optical parametric oscillation in electric-field-poled lithium niobate waveguides. Parametric gains as high as 250%/W, an oscillation threshold of 1.6 W (peak), idler output powers of 220 mW, and a tuning range of 1180–2080 nm for pump wavelengths of 756–772 nm have been observed. Pump depletion is limited to 40% because of the multiple launched transverse modes at the pump wavelength. We predict that fully optimized waveguide singly resonant oscillators can have thresholds of ~100 mW, accessible to cw diode pumping.
© 1997 Optical Society of America
M. A. Arbore and M. M. Fejer, "Singly resonant optical parametric oscillation in periodically poled lithium niobate waveguides," Opt. Lett. 22, 151-153 (1997)