Open AccessGrating-free Raman laser using highly nonlinear photonic crystal fiber
Author(s) -
Stéphane Randoux,
Nicolas Y. Joly,
Gilles Mélin,
A. Fleureau,
L. Galkovsky,
S. Lempereur,
Pierre Suret
Publication year - 2007
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.15.016035
Subject(s) - optics , fiber bragg grating , materials science , photonic crystal fiber , raman spectroscopy , laser , fiber laser , laser power scaling , raman laser , distributed feedback laser , optoelectronics , polarization maintaining optical fiber , grating , coherent anti stokes raman spectroscopy , optical fiber , raman scattering , wavelength , fiber optic sensor , physics
We demonstrate a Raman laser made from a grating-free highly-nonlinear photonic crystal fiber. The laser threshold power is lower than 600 mW and laser power characteristics recorded in experiments are accurately described from the usual simplest model dealing only with stationary evolutions of total optical powers [J. Opt. Soc. Am. 69, 803-807 (1979)]. In our theoretical treatment, reflectivity coefficients are fixed parameters, in strong contrast with procedures usually implemented to describe Raman fiber lasers made with fiber Bragg gratings. Experimental investigations of the spectral properties of our grating-free Raman fiber laser evidence that the shape of the Stokes power spectrum remains remarkably Gaussian whatever the incident pump power. Increasing the incident pump power induces a drift of the Stokes wavelength together with a broadening of the Stokes optical spectrum. Investigations on the role of light polarization on laser characteristics show that our grating-free Raman fiber laser behaves as a Raman laser made with a standard polarization maintaining fiber.