Mid-infrared, wide-tunable, continuous-wave Nd:YVO_4/PPMgLN intracavity optical parametric oscillator

摘要

We obtain a continuous-wave (CW) Nd:YVO_4/PPMgLN intracavity singly resonant optical parametric oscillator (ISRO). The threshold value of the CW-ISRO system is only 2.8W at 808 nm. When the pump power is 5.5 W, an idle laser output power of 410 mW, and a signal laser output power of 345 mW have been achieved. By changing the grating periods of the domain structure on the PPMgLN wafer, we enable a wide-tunable mid-infrared spectrum of 2.95-4.16 μm and near-infrared spectrum of 1.43-1.66 μm.