An efficient, compact intra-cavity continuous-wave mid-infrared SRO with a narrow line width

作者:Zhao, J. Q.*; Yao, B. Q.; Zhang, X. L.; Li, L.; Ju, Y. L.; Wang, Y. Z.
来源:Laser Physics Letters, 2013, 10(4): 045801.
DOI:10.1088/1612-2011/10/4/045801

摘要

A continuous-wave (cw), intra-cavity singly resonant optical parametric oscillator (SRO) has been demonstrated. The SRO is based on 5 mol% MgO-doped periodically poled lithium niobate (MgO:PPLN) pumped by a diode-pumped Nd:YVO4 ring laser. For linear polarization operation of the Nd:YVO4 ring laser, the system does not need a polarizer. When unidirectional operation is obtained for the Nd:YVO4 ring laser, the SRO is able to generate light with idler wavelengths ranging from 2.9 to 4.1 mu m with a narrow line width. The idler output power is about 470 mW at 3.87 mu m with a line width of 0.07 nm.