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Proceedings Paper

Polarization attributes of stimulated Brillouin scattering slow light in fiber
Author(s): Avi Zadok; Avishay Eyal; Moshe Tur; Luc Thevenaz
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Paper 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.

Paper Details

Date Published: 17 February 2011
PDF: 13 pages
Proc. SPIE 7949, Advances in Slow and Fast Light IV, 79490A (17 February 2011); doi: 10.1117/12.880790
Show Author Affiliations
Avi Zadok, Bar-Ilan Univ. (Israel)
Avishay Eyal, Tel Aviv Univ. (Israel)
Moshe Tur, Tel Aviv Univ. (Israel)
Luc Thevenaz, Ecole Polytechnique Fédérale de Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 7949:
Advances in Slow and Fast Light IV
Selim M. Shahriar; Philip R. Hemmer, Editor(s)

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