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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 4 — Feb. 15, 2009
  • pp: 536–538

Continuous-wave Raman amplification in silicon waveguides: beyond the undepleted pump approximation

Ivan D. Rukhlenko, Malin Premaratne, Chethiya Dissanayake, and Govind P. Agrawal  »View Author Affiliations


Optics Letters, Vol. 34, Issue 4, pp. 536-538 (2009)
http://dx.doi.org/10.1364/OL.34.000536


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Abstract

We present approximate analytical expressions describing nonlinear interaction of two optical waves copropagating inside a silicon waveguide in the presence of linear losses, stimulated Raman scattering, and free-carrier absorption. Our approach avoids the undepleted-pump approximation, which we show to be inadequate to describe accurately the Raman-gain process. Based on our calculations, we propose a new generalized definition for the effective length and show that it provides better insight into the impact of nonlinear absorption on Raman amplification in silicon waveguides.

© 2009 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(250.4390) Optoelectronics : Nonlinear optics, integrated optics
(230.4480) Optical devices : Optical amplifiers

ToC Category:
Optical Devices

History
Original Manuscript: November 12, 2008
Revised Manuscript: December 19, 2008
Manuscript Accepted: December 19, 2008
Published: February 13, 2009

Citation
Ivan D. Rukhlenko, Malin Premaratne, Chethiya Dissanayake, and Govind P. Agrawal, "Continuous-wave Raman amplification in silicon waveguides: beyond the undepleted pump approximation," Opt. Lett. 34, 536-538 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-4-536

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