Impact of two-photon absorption on self-phase modulation in silicon waveguides
Optics Letters, Vol. 32, Issue 14, pp. 2031-2033 (2007)
http://dx.doi.org/10.1364/OL.32.002031
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Abstract
We study the effects of two-photon absorption on the self-phase modulation (SPM) process in silicon waveguides while including both free-carrier absorption and free-carrier dispersion. An analytical solution is provided in the case in which the density of generated carriers is relatively low; it is useful for estimating spectral bandwidth of pulses at low repetition rates. The free-carrier effects are studied numerically with emphasis on their role on the nonlinear phase shift and spectral broadening. We also consider how the repetition rate of a pulse train affects the SPM process.
© 2007 Optical Society of America
OCIS Codes
(130.4310) Integrated optics : Nonlinear
(190.4360) Nonlinear optics : Nonlinear optics, devices
ToC Category:
Integrated Optics
History
Original Manuscript: March 22, 2007
Revised Manuscript: April 30, 2007
Manuscript Accepted: May 1, 2007
Published: July 5, 2007
Citation
Lianghong Yin and Govind P. Agrawal, "Impact of two-photon absorption on self-phase modulation in silicon waveguides," Opt. Lett. 32, 2031-2033 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-14-2031
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