Stimulated Raman scattering in all-fiber optical switching

Andery N. Starodumov, A. Martinez-Rios, Yuri O. Barmenkov, Valery N. Filippov

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

Abstract

Stimulated Raman scattering is analyzed as a potential mechanism for ultrafast switching and amplification in a nonlinear loop mirror (NOLM). The control pulse power requirements for the Raman switch are calculated to be practically the same as for the Kerr switch. The real and imaginary parts of the Raman susceptibility in a germanium-doped fiber for different GeO2 concentrations are derived. The stimulated Raman scattering is shown to dominate over the nonlinear Kerr effect with an increase of germanium concentration, resulting in the linear (at low Raman gain) and exponential (at greater Raman gain) transfer functions of the NOLM. An important advantage of this optical transistor is a possibility to obtain ah-optical switching and amplification in a single device. We have demonstrated experimentally an optical switch with the amplification factor of 10 using 120 ps pulses in 20 mol.% germanium-doped fiber.

Original languageEnglish
Title of host publicationOptical Devices For Fiber Communication
EditorsMJF Digonnet
Place of PublicationBELLINGHAM
PublisherSPIE
Pages233-239
Number of pages7
ISBN (Print)0-8194-3440-X
Publication statusPublished - 1999
Externally publishedYes
Publication typeA4 Article in conference proceedings
EventConference on Optical Devices for Fiber Communication - BOSTON, Morocco
Duration: 20 Sept 199921 Sept 1999

Publication series

NamePROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Volume3847
ISSN (Print)0277-786X

Conference

ConferenceConference on Optical Devices for Fiber Communication
Country/TerritoryMorocco
Period20/09/9921/09/99

Keywords

  • fiber loop mirror
  • Kerr effect
  • stimulated Raman scattering
  • optical switching
  • LOOP MIRROR
  • SILICA-CORE

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