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Scaling of Raman amplification in realistic slow-light photonic crystal waveguides

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IReyPhysRevB84ScalingOfRamanAmplificationJul2011.pdf (447.3Kb)
Date
20/07/2011
Author
Rey, Isabella Helen
Lefevre, Yannick
Schulz, Sebastian Andreas
Vermeulen, Nathalie
Krauss, Thomas Fraser
Funder
EPSRC
Grant ID
EP/F001622/1
Keywords
QC Physics
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Abstract
The prospect for low pump-power Raman amplification in silicon waveguides has recently been boosted by theoretical studies discussing the enhancement of nonlinear phenomena in slow-light structures. In principle, the slowing down of either the pump or the signal beam is equivalent in terms of Raman gain, but in the presence of losses, we show that they play different roles in determining the net signal gain. We also investigate the impact of the mode profile in realistic slow-light waveguides on the total gain, an effect that is usually neglected in the context of stimulated Raman scattering. By taking representative losses and mode shapes into account, we provide a realistic estimation of the achievable performance of slow-light photonic crystal waveguides.
Citation
Rey , I H , Lefevre , Y , Schulz , S A , Vermeulen , N & Krauss , T F 2011 , ' Scaling of Raman amplification in realistic slow-light photonic crystal waveguides ' , Physical Review. B, Condensed matter and materials physics , vol. 84 , no. 3 , 035306 . https://doi.org/10.1103/PhysRevB.84.035306
Publication
Physical Review. B, Condensed matter and materials physics
Status
Peer reviewed
DOI
https://doi.org/10.1103/PhysRevB.84.035306
ISSN
1098-0121
Type
Journal article
Rights
©2011 American Physical Society
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/2848

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