Open AccessDual-wavelength intracavity Raman laser driven by a coaxially pumped dual-crystal fundamental laser
Author(s) -
Yang Liu,
Quan Sheng,
Kai Zhong,
Wei Shi,
Xin Ding,
Hongzhan Qiao,
Kefei Liu,
Hanchao Ma,
Ran Li,
Degang Xu,
Jianquan Yao
Publication year - 2019
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.27.027797
Subject(s) - optics , materials science , laser , wavelength , raman spectroscopy , raman laser , pulse repetition frequency , raman scattering , optoelectronics , physics , telecommunications , radar , computer science
An actively Q-switched dual-wavelength intracavity Raman laser based on a coaxially pumped dual-crystal (Nd:YAG and b-cut Nd:YAP) fundamental configuration was theoretically and experimentally investigated. Stable dual-wavelength Stokes output at 1176 nm and 1195 nm was subsequently obtained by the Raman conversion from an a-cut YVO 4 crystal. A total average power of 1.8 W was produced at 10 kHz pulse repetition frequency under an incident diode pump power of 15.8 W, in which the power levels at the two Stokes wavelengths were nearly equivalent. The power proportion and the interval between the dual-wavelength Stokes pulses could be manipulated actively by changing the pump focal position or pump wavelength.