High-Efficiency Mid-Infrared Picosecond MgO:PPLN Single Resonant Optical Parametric Oscillator
HAN Ke-Zhen1,2, NING Jian1, HE Jing-Liang1**, HOU Jia1, ZHANG Bai-Tao1, WANG Zhao-Wei1
1State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Ji'nan 250100 2School of Science, Shandong University of Technology, Zibo 255049
Abstract：We demonstrate a high-efficiency mid-infrared picosecond optical parametric oscillator (OPO) based on MgO doped periodically poled lithium niobate (MgO:PPLN) with a laser diode array (LDA) pumped Innoslab amplifier as the pumping source. Under a 16 W synchronously pumping power, 4.5 W of idler light at 2896 nm is obtained. A tuning range of idler light from 2688 nm to 3016 nm is achieved, within which the highest optical-optical conversion efficiency from pump power to OPO output is 35.1%. Moreover, a signal light of ～500 mW from 1644 to 1700 nm with a repetition rate of 233.8 MHz is generated.
2015, Vol. 32 
