Title :
Large-band periodic filters for DWDM using multiple-superimposed fiber Bragg gratings
Author :
Slavík, Radan ; LaRochelle, Sophie
Author_Institution :
Dept. of Electr. & Comput. Eng., Laval Univ., Que., Canada
Abstract :
The tight specifications of dense wavelength division multiplexing (DWDM) filters are challenging for any available technologies. In this letter, periodic transmission filters based on superimposed chirped fiber Bragg gratings are designed to have flat amplitude response and nearly constant in-band group delay. These filters should prove to be useful as interleavers and mux/demux filters in DWDM systems.
Keywords :
Bragg gratings; chirp modulation; demultiplexing; optical communication equipment; optical design techniques; optical fibre filters; optical modulation; wavelength division multiplexing; DWDM; constant in-band group delay; dense wavelength division multiplexing filter specifications; flat amplitude response; interleavers; large-band periodic filters; multiple-superimposed fiber Bragg gratings; mux/demux filters; periodic transmission filters; superimposed chirped fiber Bragg gratings; Arrayed waveguide gratings; Band pass filters; Bandwidth; Chirp; Cities and towns; Fiber gratings; Optical fiber filters; Passband; Resonator filters; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.804639
