Open AccessWidely-tunable single-frequency diamond Raman laser
Author(s) -
Xuezong Yang,
Zhenxu Bai,
Dijun Chen,
Weibiao Chen,
Yang Feng,
Richard P. Mildren
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.435023
Subject(s) - laser linewidth , materials science , optics , lithium triborate , laser , raman laser , raman spectroscopy , fiber laser , diamond , optoelectronics , lithium niobate , second harmonic generation , wavelength , raman scattering , physics , composite material
We report a diamond Raman laser that is continuously-tunable across the range from 590 nm to 625 nm producing continuous wave output with up to 8 W. The system is based on an all-fiber and tunable (1020-1072 nm) Yb-doped pump laser with a spectral linewidth of 25 GHz that is Raman-shifted and frequency doubled in a cavity containing diamond and a lithium triborate second harmonic crystal. Despite the broad pump spectrum, single frequency output is obtained across the tuning range 590-615 nm. The results reveal a practical approach to obtain tunable high-power single-frequency laser in a wavelength region not well served by other laser technologies.