Polarization attributes of stimulated Brillouin scattering slow light in fiber

Avi Zadok, Avishay Eyal, Moshe Tur, Luc Thevenaz

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The polarization-related properties of stimulated Brillouin scattering (SBS) processes in long, randomly birefringent, standard optical fibers are examined. Evolution equations for the pump and signal waves, in the presence of both birefringence and SBS, are provided in Jones and Stokes spaces. It is shown that in the undepleted pump regime, the amplification of the SBS signal wave is equivalent to that of a linear medium with polarization-dependent gain. The process is associated with a pair of orthogonal states of polarizations (SOPs) of the signal wave, which undergo maximum and minimum amplification. In long, standard fibers, the Jones vector of the probe SOP which corresponds to maximum amplification is aligned with the complex conjugate of the pump wave Jones vector. The maximum and minimum SBS gain coefficients in such fibers equal two-thirds and one-third of the gain coefficient that is predicted by scalar theory, respectively. The large differential gain of the SBS process gives rise to an effective pulling of the amplified Stokes probe wave SOP, towards that of maximum amplification. Lastly, Stokes wave pulses that are aligned for maximum and minimum amplification experience different group delays, which manifest as polarization-related distortions in SBS slow light setups.

Original languageEnglish
Title of host publicationAdvances in Slow and Fast Light IV
DOIs
StatePublished - 2011
EventAdvances in Slow and Fast Light IV - San Francisco, CA, United States
Duration: 23 Jan 201125 Jan 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7949
ISSN (Print)0277-786X

Conference

ConferenceAdvances in Slow and Fast Light IV
Country/TerritoryUnited States
CitySan Francisco, CA
Period23/01/1125/01/11

Keywords

  • Stimulated Brillouin scattering
  • nonlinear fiber optics
  • polarimetry
  • slow and fast light

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