Femtosecond pulse propagation in silicon waveguides: Variational approach and its advantages
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Femtosecond pulse propagation in silicon waveguides: Variational approach and its advantages
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| Creator |
Roy, Samudra
Bhadra, Shyamal Kumar Agrawal, Govind P |
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| Subject |
Processing Science
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| Description |
We investigate the propagation characteristics of ultrafast pulses inside silicon waveguides considering frequency chirp associated with each input pulse. Effects of linear losses, two-photon absorption, and free-carrier dynamics are included analytically within the framework of a modified variational formalism and the results are validated by comparing them with full numerical simulations. It is found that an initial chirp helps in maintaining the pulse shape and spectrum in the anomalous-dispersion regime, thereby resulting in soliton-like propagation of ultrashort optical pulses. (C) 2008 Elsevier B.V. All rights reserved.
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| Publisher |
Elsevier
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| Date |
2008-12-01
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/440/1/roy.pdf
Roy, Samudra and Bhadra, Shyamal Kumar and Agrawal, Govind P (2008) Femtosecond pulse propagation in silicon waveguides: Variational approach and its advantages. Optics Communications, 281 (23). pp. 5889-5893. ISSN 0030-4018 |
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| Relation |
http://cgcri.csircentral.net/440/
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