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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14111
Title: Modeling of large-bandwidth parametric amplification in the Čerenkov-idler configuration in planar waveguides
Authors: Rastogi, Vipul K.
Thyagarajan K.
Shenoy M.R.
Baldi P.
De Micheli M.
Ostrowsky D.B.
Published in: Journal of the Optical Society of America B: Optical Physics
Abstract: Parametric amplification in the Cerenkov-idler configuration, in which the pump and the signal fields form guided waves of a planar waveguide while the idler is radiated into the substrate, is analyzed by a coupled-mode approach. Using the quasi-phase-matching scheme for periodically domain-reversed proton-exchanged LiNbO3 waveguides upon a Z-cut substrate, we have shown that this novel configuration has a large signal gain bandwidth and is more tolerant of variations in pump frequency than the all-guided configuration is. One can compensate for the relatively lower gain in the proposed configuration by increasing the interaction length. For typical values of various parameters, numerical results for optimum waveguide parameters (corresponding to maximum signal gain) for a given pump and signal wavelength are presented. Similarly, for a given waveguide the optimum combination of the pump and the signal wavelengths has been estimated. This configuration is expected to find applications in the realization of practical parametric amplifiers and oscillators. © 1997 Optical Society of America.
Citation: Journal of the Optical Society of America B: Optical Physics (1997), 14(11): 3191-3196
URI: https://doi.org/10.1364/JOSAB.14.003191
http://repository.iitr.ac.in/handle/123456789/14111
Issue Date: 1997
Publisher: Optical Society of America (OSA)
ISSN: 7403224
Author Scopus IDs: 7006364661
7007059471
7005876250
56246416800
57204280627
7006500482
Author Affiliations: Rastogi, V., Department of Physics, Indian Institute of Technology, New Delhi-110 016, India
Thyagarajan, K., Department of Physics, Indian Institute of Technology, New Delhi-110 016, India
Shenoy, M.R., Department of Physics, Indian Institute of Technology, New Delhi-110 016, India
Baldi, P., Lab. de Phys. de la Matiere Cond., Univ. de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France
De Micheli, M., Lab. de Phys. de la Matiere Cond., Univ. de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France
Ostrowsky, D.B., Lab. de Phys. de la Matiere Cond., Univ. de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France
Corresponding Author: Rastogi, V.; Department of Physics, Indian Institute of Technology, New Delhi-110 016, India
Appears in Collections:Journal Publications [PH]

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