The use of a diffraction grating as a frequency-selective reflector, has allowed a synchronously pumped optical parametric oscillator based on periodically poled lithium niobate to tune over a wide range, 1900–2300 nm around degeneracy (2094 nm), on a single periodically poled lithium niobate grating at a fixed temperature. The grating ensures stable singly resonant operation over the whole of this range except for a very narrow range at degeneracy, where doubly resonant behavior is evident. The extent of this narrow range, ∼6 nm, is confirmed by analysis.
© 1999 Optical Society of America
(050.1950) Diffraction and gratings : Diffraction gratings
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
K. Puech, L. Lefort, and D. C. Hanna, "Broad tuning around degeneracy in a singly resonant synchronously pumped parametric oscillator by means of a diffraction grating," J. Opt. Soc. Am. B 16, 1533-1538 (1999)