Open AccessContinuous-wave mid-infrared intra-cavity singly resonant PPLN-OPO under 880 nm in-band pumping
Author(s) -
Quan Sheng,
Xin Ding,
Chunpeng Shi,
Sujia Yin,
Bin Li,
Ce Shang,
Xiaoyang Yu,
Wuqi Wen,
Jianquan Yao
Publication year - 2012
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.008041
Subject(s) - materials science , optical parametric oscillator , optics , lithium niobate , laser , continuous wave , energy conversion efficiency , infrared , optical pumping , slope efficiency , nonlinear optics , optoelectronics , laser pumping , wavelength , fiber laser , physics
We report herein a continuous-wave mid-infrared intra-cavity singly resonant optical parametric oscillator (ICSRO) which is the first example of ICSRO that utilize in-band pumped Nd-doped vanadate laser as pump source. A 1064 nm Nd:YVO₄ laser in-band pumped by 880 nm LD and a periodically poled lithium niobate (PPLN) crystal are employed as the parent pump laser and the nonlinear medium, respectively. The idler output wavelength tuning range is 3.66-4.22 µm. A maximum output power of 1.54 W at 3.66 µm is obtained at absorbed pump power of 21.9 W, with corresponding optical efficiency being 7.0%. The control experiment of ICSRO under 808 nm traditional pumping is also carried out. The results show that in-band pumped ICSRO has better performance in terms of threshold, power scaling, efficiency and power stability than ICSRO traditionally pumped at 808 nm.