Abstract
We describe a compact all-solid-state continuous-wave singly resonant optical parametric oscillator (SRO) with a minimal pump-power requirement. The SRO is based on periodically poled as the nonlinear material and is pumped by a 1-W diode-pumped minilaser at . By exploiting the intracavity pumping technique in a 50-mm crystal, we have achieved SRO operation threshold at a diode pump power of only 310 mW. At 1 W of input diode power, the SRO delivers 70 mW of output power in the nonresonant idler at , at a photon conversion efficiency of 55%. Multiparameter tuning of the SRO yields a signal wavelength range from 1.45 to and an idler wavelength range from 3.16 to in the mid infrared. The device is characterized by robust turnkey operation and long-term amplitude-stable performance.
© 1998 Optical Society of America
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