Open AccessIntra-cavity diamond Raman laser at 1634 nm
Author(s) -
Hou-Jie Ma,
Xin Wei,
Shi-Bo Dai,
Hao Yin,
Siqi Zhu,
Zhen Li,
Zhenqiang Chen
Publication year - 2021
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.439098
Subject(s) - laser linewidth , optics , materials science , laser , raman laser , full width at half maximum , raman spectroscopy , pulse repetition frequency , pulse duration , diamond , laser pumping , optoelectronics , raman scattering , physics , telecommunications , radar , computer science , composite material
We demonstrated an eye-safe diamond Raman laser intra-cavity pumped by the 1.3 μm fundamental field for the first time, to the best of our knowledge. The first-Stokes laser at 1634 nm was converted from the 1342 nm fundamental laser, which was produced by an in-band pumped double-end diffusion-bonded a-cut Nd:YVO 4 crystal. Under an incident pump power of 21.2 W and an optimal pulse repetition frequency of 25 kHz, the maximum average output power of 2.0 W was obtained with the pulse duration of 5.7 ns and the peak power of 14 kW. The first-Stokes emission was found to be near diffraction limited (M 2 ≈ 1.3) and to have a narrow linewidth (∼0.05 nm FWHM; instrument limited).