Effect of free carriers on pump-to-signal noise transfer in silicon Raman amplifiers
Optics Letters, Vol. 35, Issue 14, pp. 2343-2345 (2010)
http://dx.doi.org/10.1364/OL.35.002343
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Abstract
We study noise transfer from pump to signal in silicon Raman amplifiers, with particular emphasis on the regimes of strong cumulative free-carrier absorption and heavy pump depletion. We calculate the relative intensity noise (RIN) transfers in copumped and counterpumped amplifiers and provide intuitive explanations for RIN peculiarities. We show that noise transfer at low frequencies may be suppressed by carefully choosing the pump intensity, effective free-carrier lifetime, or amplifier length, but only at the expense of a rise in noise at high frequencies.
© 2010 Optical Society of America
OCIS Codes
(190.4360) Nonlinear optics : Nonlinear optics, devices
(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: May 4, 2010
Revised Manuscript: June 11, 2010
Manuscript Accepted: June 11, 2010
Published: July 5, 2010
Citation
Ivan D. Rukhlenko, Indika Udagedara, Malin Premaratne, and Govind P. Agrawal, "Effect of free carriers on pump-to-signal noise transfer in silicon Raman amplifiers," Opt. Lett. 35, 2343-2345 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-14-2343
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