Open AccessMeasurement of co- and cross-polarized Raman spectra in silica fiber for small detunings
Author(s) -
Xiaoying Li,
Paul L. Voss,
Jun Chen,
Kim Fook Lee,
Prem Kumar
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.002236
Subject(s) - raman scattering , optics , brillouin scattering , coherent anti stokes raman spectroscopy , raman spectroscopy , dispersion (optics) , x ray raman scattering , photon , physics , self phase modulation , photon counting , cross phase modulation , phase modulation , materials science , optical fiber , nonlinear optics , phase noise , laser
We report measurement of co- and cross-polarized Raman gain spectra at the zero-dispersion wavelength of standard dispersion-shifted fiber for detunings down to 0.17 THz (5.7cm-1) on both Stokes and anti-Stokes sides by using a photon-counting technique. This technique separates the Raman scattering from the four-photon scattering. In addition, the use of a pulsed pump eliminates Brillouin scattering and the use of a Sagnac loop rejects the pump photons that spectrally spread into the detection band due to self-phase-modulation.