标题：KTP OPO with signal wave at 1630 nm intracavity pumped by an efficient sigma-polarized Nd, MgO:LiNbO3 laser
作者：Chu, Hongwei; Zhao, Jia; Li, Tao; Zhao, Shengzhi; Yang, Kejian; Li, Dechun; Li, Guiqiu; Qiao, Wenchao; Sang, Yuanhua; Liu, Hong
作者机构：[Chu, Hongwei; Zhao, Jia; Li, Tao; Zhao, Shengzhi; Yang, Kejian; Li, Dechun; Li, Guiqiu; Qiao, Wenchao] Shandong Univ, Sch Informat Sci & Engn, Jinan 更多
通讯作者地址：[Zhao, SZ]Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China.
来源：OPTICAL MATERIALS EXPRESS
摘要：An efficient, 808-nm-laser-diode end-pumped, sigma-polarized Nd, MgO: LiNbO3 laser emitting at 1094 nm was demonstrated for the first time. The maximum output power of 1.49 W was obtained at the absorbed diode pump power of 6.48 W, corresponding to an optical-to-optical conversion efficiency of about 23%. The slope efficiency was approximately 25.7%. For applications, an intracavity optical parametric oscillator (IOPO) pumped by an actively Q-switched Nd, MgO: LiNbO3 laser with an acousto-optic modulator (AOM) was realized. An X-cut KTiOPO4 (KTP) worked as the nonlinear crystal for type II noncritical phase matching (NCPM). A maximum output power of the signal wavelength at 1630 nm was about 96 mW with a minimum pulse duration of 1.69 ns at an AOM repetition rate of 5 kHz, giving a peak power of 11.4 kW. (C) 2015 Optical Society of America