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  • Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides
  • OSA Trends in Optics and Photonics Series (Optica Publishing Group, 1999),
  • paper AD3
  • https://doi.org/10.1364/BGPP.1999.AD3

Dual-channel real-time Fourier transformer based on chirped Moiré fiber grating

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Abstract

We use a chirped Moiré fiber grating (CMFG) to work as a dual-channel realtime Fourier transformer system, operating simultaneously and independently on two channels in a wavelength division multiplexing (WDM) scheme. The design of the grating is based on a time-domain equivalent to the spatial Fraunhofer diffraction. We use joint time-frequency signal representations to get a better understanding of the physical processes which determine the performance of the proposed system.

© 1999 Optical Society of America

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