Competition between the modulation instability and stimulated Brillouin scattering in a broadband slow light device
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We observe competition between the modulation instability (MI) and stimulated Brillouin scattering (SBS) in a 9.2 GHz broadband SBS slow light device, in which a standard 20 km long single-mode LEAF fibre is used as the SBS medium. We find that MI is dominant and depletes most of the pump power when we use an intense pump beam at ∼1.55 μm, where the LEAF fibre is anomalously dispersive. The dominance of the MI in the LEAF-fibre-based system suppresses the SBS gain, degrading the SBS slow light delay and limiting the SBS gain-bandwidth to 125 dB GHz. In a dispersion-shifted highly nonlinear fibre, the SBS slow light delay is improved due to the suppression of the MI, resulting in a gain-bandwidth product of 344 dB GHz, limited by our available pump power of 0.82 W. © 2010 IOP Publishing Ltd.
Published Version (Please cite this version)10.1088/2040-8978/12/10/104019
Publication InfoCabrera-Granado, E; Calderon, OG; Gaeta, AL; Gauthier, Daniel J; Melle, S; Okawachi, Y; & Zhu, Y (2010). Competition between the modulation instability and stimulated Brillouin scattering in a broadband slow light device. Journal of Optics, 12(10). pp. 1-7. 10.1088/2040-8978/12/10/104019. Retrieved from http://hdl.handle.net/10161/5082.
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Research Professor of Physics
Prof. Gauthier is interested in a broad range of topics in the fields of nonlinear and quantum optics, and nonlinear dynamical systems. In the area of optical physics, his group is studying the fundamental characteristics of highly nonlinear light-matter interactions at both the classical and quantum levels and is using this understanding to develop practical devices. At the quantum level, his group has three major efforts in the area of quantum communication and networking. I