Signal processing in photonic crystals and nanostructures

Year: 2006

Authors: Wabnitz S.

Autors Affiliation: Laboratoire de Physique, Université de Bourgogne, UMR CNRS 5027, 9 Av. Savary, 21078 Dijon-Cedex, France; Dipartimento di Elettronica per l\’Automazione, Università di Brescia, via Branze 38, 25123 Brescia, Italy

Abstract: Optical devices employing photonic crystals and novel nanostructure materials may exhibit useful properties for applications to all-optical signal processing. In this work we analyze as a first example four-wave mixing of polarized beams in photonic crystal fibers. We show that by properly tuning the pump wavelength and the linear dispersion properties of the fiber one may obtain broadband parametric amplification and frequency conversion. Next we consider the in-line periodic amplification of short optical pulses by means of quantum-dot semiconductor optical amplifiers. We show by numerical simulations that pattern-free amplification of a 40Gbit/s soliton signal at 1300 nm is possible without any inter-symbol interference or nonlinear pulse distortion caused by the fast gain dynamics.


Volume: 15 (1)      Pages from: 55  to: 76

KeyWords: Instabilities and solitons; Optical communications; Optical fibers; Optical propagation in nonlinear media; Parametric amplifiers; Semiconductor optical amplifiers
DOI: 10.1142/S0218863506003165