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Proceedings Paper

Noise properties in optically distributed Raman amplifiers using a semiclassical model
Author(s): Philippe B. Gallion; Virginie Dallot; Edouard Bridoux
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Paper Abstract

Using the semiclassical approach the gain and noise powers, associated to signal and, generated in optical Raman amplifiers, are estimated for forward and backward configurations. Because it combines a corpuscular approach to a phase-amplitude description of the optical field and of the associated noise, this classical formalism allows to identify, to distinguish and to evaluate the respective noise contributions linked, first, to incident fields, such as input zero-point fluctuations, and relative intensity noise associated to the pump, and to the amplifier itself due to the electron momentum fluctuations at the optical frequency. The contribution of Rayleigh backscattering and pump depletion effects are taken into account. For both configurations, the effects of gain and pump power distribution on noise generation are underlined. The determination of the origin and of the amount of intensity noise at the output constitutes a first step toward the amplification of signal with reduced noise amount in Raman amplifiers.

Paper Details

Date Published: 12 June 2002
PDF: 12 pages
Proc. SPIE 4646, Physics and Simulation of Optoelectronic Devices X, (12 June 2002); doi: 10.1117/12.470568
Show Author Affiliations
Philippe B. Gallion, Ecole Nationale Superieure des Telecommunications (France)
Virginie Dallot, Ecole Nationale Superieure des Telecommunications (France)
Edouard Bridoux, Ecole Nationale Superieure des Telecommunications (France)

Published in SPIE Proceedings Vol. 4646:
Physics and Simulation of Optoelectronic Devices X
Peter Blood; Marek Osinski; Yasuhiko Arakawa, Editor(s)

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