Open AccessSRS in the strong-focusing regime for Raman amplifiers
Author(s) -
Aaron McKay,
Richard P. Mildren,
David W. Coutts,
David J. Spence
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.015012
Subject(s) - optics , amplifier , raman spectroscopy , raman scattering , materials science , laser , nanosecond , diamond , raman laser , beam (structure) , optical amplifier , coherent anti stokes raman spectroscopy , optoelectronics , power (physics) , physics , cmos , quantum mechanics , composite material
The theoretical analysis of stimulated Raman scattering (SRS) in crystalline amplifiers with a tightly-focused pump geometry is presented. We predict the minimum Stokes seed power required for an efficient Raman power amplifier and verify this result experimentally. Conversion of a pump to a Stokes beam in a single-pass diamond amplifier is demonstrated using nanosecond pulses with gains of 5.8 from a 1.2-kW peak-power Stokes seed beam. The results demonstrate the possibility of amplifying and combining high-power continuous-wave lasers using current diamond Raman laser technology.