Title :
Spectral phase OCDMA encoder/decoder using Travelling Interference Fringe photo-writing technique
Author :
Fsaifes, I. ; Millaud, A. ; Cordette, S. ; Lepers, C. ; Douay, M. ; Ware, C.
Author_Institution :
Laboratoire Xlim, Universit? de Limoges, 123 avenue Albert Thomas, 87060, France
Abstract :
In this paper, we describe and investigate a new UV photo-writing setup using Travelling Interference Fringe (TIF) technique for Fiber Bragg Grating (FBG) realization. A continuously moving fringe pattern is generated using two electro-optical UV modulators and is synchronized with the fiber moving speed. FBG parameters such as chirp, phase shift and apodization profile can be controlled with high precision. This method is used to realize repeatable, flexible and complex profile spectral phase OCDMA encoders/decoders. Experimental realization results in good agreement with numerical simulations are presented and discussed. The obtained encoders/decoders are tested within a system setup using a supercontinuum optical source.
Keywords :
Bragg gratings; Chirp modulation; Decoding; Electrooptic modulators; Fiber gratings; Fiber nonlinear optics; Interference; Nonlinear optics; Numerical simulation; System testing; Fiber Bragg Gratings (FBGs); optical code division multiple access (OCDMA); phase shift; spectral phase encoding; supercontinuum optical source;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
