Open AccessSpatio-temporal generation regimes in quasi-CW Raman fiber lasers
Author(s) -
Nikita Tarasov,
Srikanth Sugavanam,
Dmitry V. Churkin
Publication year - 2015
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.23.024189
Subject(s) - optics , fiber laser , laser , intensity (physics) , raman spectroscopy , physics , temporal resolution , raman amplification , dynamics (music) , raman scattering , materials science , acoustics
We present experimental measurements of intensity spatio-temporal dynamics in quasi-CW Raman fiber laser. Depending on the power, the laser operates in different spatio-temporal regimes varying from partial mode-locking near the generation threshold to almost stochastic radiation and a generation of short-lived pulses at high power. The transitions between the generation regimes are evident in intensity spatio-temporal dynamics. Two-dimensional auto-correlation functions provide an additional insight into temporal and spatial properties of the observed regimes.