K. Schneider et S. Schiller, NARROW-LINEWIDTH, PUMP-ENHANCED SINGLY-RESONANT PARAMETRIC OSCILLATORPUMPED AT 532 NM, Applied physics. B, Lasers and optics, 65(6), 1997, pp. 775-777
A continuous-wave all-solid-state singly-resonant optical parametric o
scillator (SRO) with excellent spectral purity based on MgO:LiNbO3 is
demonstrated. The pump wave is provided by a frequency-doubled miniatu
re Nd:YAG ring laser and is resonantly enhanced in the SRO cavity, res
ulting in an external threshold of 200 mW. Stable single-frequency emi
ssion in the 1000-1135 nm range has been obtained with 2 GHz continuou
s tunability and signal/idler linewidths < 160 kHz.