Open AccessSelective excitation of multiple Raman Stokes wavelengths (green-yellow-red) using shaped multi-step pulses from an all-fiber PM MOPA
Author(s) -
Di Lin,
Shaif-ul Alam,
P.C. Teh,
Kang Kang Chen,
David J. Richardson
Publication year - 2011
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.19.002085
Subject(s) - optics , materials science , fiber laser , wavelength , raman scattering , femtosecond , pulse shaping , laser , raman spectroscopy , excitation , fiber , optoelectronics , physics , composite material , quantum mechanics
We report a rapidly tunable, wavelength agile fiber laser system capable of the synchronous generation of sequences of pulses with different wavelengths in the visible region of the spectrum using stimulated Raman scattering of multi-step pump pulses in a 250 m length of fiber. The frequency doubled output of a single polarization all-fiber Yb-doped MOPA operating at 1060 nm was used as the pump source. By adjusting the pump power and the pulse profiles we achieved the sequential excitation of green (1st Stokes), yellow (4th Stokes) and red light (6th Stokes) using 3-step pulses, or the combination of any two using 2-step pulses. The wavelength switching time was <5 ns and was limited only by the pulse shaping drive electronics.