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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 20 — Jul. 10, 2010
  • pp: 3956–3959

Double Brillouin frequency shift through circulation of odd-order Stokes signal

Yu Gang Shee, Mohammed Hayder Al-Mansoori, Alyani Ismail, Salasiah Hitam, and Mohd Adzir Mahdi  »View Author Affiliations


Applied Optics, Vol. 49, Issue 20, pp. 3956-3959 (2010)
http://dx.doi.org/10.1364/AO.49.003956


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Abstract

We demonstrate a simple configuration for generating a double Brillouin frequency shift through the circulation of an odd-order Brillouin Stokes signal. It is operated based on cascaded Brillouin scattering in single-mode optical fibers that behave as the Brillouin gain media. A four-port circulator is incorporated into the setup to circulate the odd-order Brillouin Stokes signal in the fiber. It thus initiates a higher order Brillouin Stokes signal, which is double Brillouin frequency downshifted from the input signal. For the 5 km long fiber, the Brillouin pump power at 23 mW gives a clean output spectrum with 30 dB sideband suppression ratio. The output signal is 0.174 nm or 21.7 GHz downshifted from the input signal.

© 2010 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(140.3510) Lasers and laser optics : Lasers, fiber
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 8, 2010
Revised Manuscript: June 6, 2010
Manuscript Accepted: June 9, 2010
Published: July 8, 2010

Citation
Yu Gang Shee, Mohammed Hayder Al-Mansoori, Alyani Ismail, Salasiah Hitam, and Mohd Adzir Mahdi, "Double Brillouin frequency shift through circulation of odd-order Stokes signal," Appl. Opt. 49, 3956-3959 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-20-3956

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