All‐optical wavelength conversion based on degenerate four‐wave mixing in Raman ring laser | Zendy

Zamzuri A.K. | Zendy; Ismail U.S. | Zendy; AlMansoori M.H. | Zendy; Islam M.S. | Zendy; Mahdi M.A. | Zendy

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All‐optical wavelength conversion based on degenerate four‐wave mixing in Raman ring laser

Author(s) -

Zamzuri A.K.,

Ismail U.S.,

AlMansoori M.H.,

Islam M.S.,

Mahdi M.A.

Publication year - 2011

Publication title -

laser physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.59

H-Index - 72

eISSN - 1612-202X

pISSN - 1612-2011

DOI - 10.1002/lapl.201010077

Subject(s) - energy conversion efficiency , four wave mixing , wavelength , materials science , raman scattering , bandwidth (computing) , optics , degenerate energy levels , laser , parametric statistics , nonlinear optics , nonlinear medium , mixing (physics) , raman spectroscopy , optical pumping , optoelectronics , physics , telecommunications , statistics , mathematics , quantum mechanics , computer science

We demonstrate an all‐optical wavelength converter using a ring cavity that produces conversion efficiency of more than unity within a certain bandwidth. The highly nonlinear fiber is used as the parametric amplifying medium and it is pumped by four independent pump lasers at 1427, 1443, 1461, and 1493 nm. The parametric pump is formed internally from the ring cavity through the effect of stimulated Raman scattering. The interaction between signal and parametric pump becomes intensified as they propagate along the fiber from input to the output ports. This un‐depleted pump power condition enhances the process of degenerate four‐wave mixing in the proposed structure. The maximum conversion efficiency is obtained at 9.5 dB and the bandwidth of positive conversion efficiency is about 20.6 nm. (© 2011 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA) (© 2010 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)

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