Title :
Phase-shifted fiber Bragg gratings and their application for wavelength demultiplexing
Author :
Agrawal, Govind P. ; Radic, Stojan
Author_Institution :
Inst. of Opt., Rochester Univ., NY, USA
Abstract :
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.<>
Keywords :
demultiplexing equipment; diffraction gratings; optical communication equipment; optical fibres; phase shifters; wavelength division multiplexing; all-fiber demultiplexer; fabrication process; multichannel lightwave systems; multiple phase-shift regions; narrowband transmission windows; phase shift; phase-shifted fiber Bragg gratings; single phase-shift regions; stop band; transmission spectrum; transmitted wavelength; wavelength demultiplexing; Bragg gratings; Demultiplexing; Fiber gratings; Narrowband; Optical feedback; Optical fiber communication; Optical filters; Optical interferometry; Optical reflection; Optical scattering;
Journal_Title :
Photonics Technology Letters, IEEE
