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Phase-shifted fiber Bragg gratings and their application for wavelength demultiplexing

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2 Author(s)
Agrawal, G.P. ; Inst. of Opt., Rochester Univ., NY, USA ; Radic, S.

It is shown that the transmission spectrum of a fiber Bragg grating can be tailored by incorporating single or multiple phase-shift regions during the fabrication process. Phase shifts open up narrowband transmission windows inside the stop band of the Bragg grating; transmitted wavelength can be changed by adjusting the amount of phase shift. As a specific application, we discuss how phase-shifted Bragg gratings can be used to make an all-fiber demultiplexer for multichannel lightwave systems.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:6 ,  Issue: 8 )