Chinese Optics Letters, 2008, 6 (2): 02127, Published Online: Mar. 5, 2008
Intracavity optical parametric oscillator at 1.57-micron wavelength pumped by passive Q-switched Nd:GdVO4 laser
Abstract
A high-repetition-rate eye-safe optical parametric oscillator (OPO), using a non-critically phase-matched KTP crystal intracavity pumped by a passively Q-switched Nd:GdVO4/Cr4+:YAG laser, is experimentally demonstrated. The conversion efficiency for the average power is 7% from pump diode input to OPO signal output and the slope efficiency is up to 10.3%. With an incident pump power of 7.3 W, the compact intracavity OPO (IOPO) cavity, operating at 15 kHz, produces an average power of 0.57 W at 1570 nm with a pulse width as short as 6 ns. The peak power at 1570 nm is higher than 6.3 kW.
Mingwei Gao, Chunqing Gao, Kun Tang, Zhifeng Lin, Xiuyong Zhang. Intracavity optical parametric oscillator at 1.57-micron wavelength pumped by passive Q-switched Nd:GdVO4 laser[J]. Chinese Optics Letters, 2008, 6(2): 02127.
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