Title :
Spectral characteristics of coupled-waveguide Bragg-reflection tunable optical filter
Author_Institution :
Ericsson Telecom AB, Stockholm, Sweden
fDate :
10/1/1993 12:00:00 AM
Abstract :
The transmission and reflection spectrum of the coupled-waveguide Bragg-reflection filter are computed by a new method. The filter is based on the use of a Bragg grating to obtain contradirectional coupling between two dissimilar waveguides. The analysis shows that the tuning range should be similar to that of a simple Bragg grating filter, but with the advantage of having the output separated from the input. This device could also be used as a selective tap in a wavelength-division multiplexing system
Keywords :
diffraction gratings; integrated optics; multiplexing equipment; optical couplers; optical filters; optical waveguides; tuning; wavelength division multiplexing; Bragg grating; Bragg grating filter; WDM; contradirectional coupling; coupled-waveguide Bragg-reflection tunable optical filter; dissimilar waveguides; integrated optics; reflection spectrum; selective tap; spectral characteristics; transmission spectrum; tuning range; wavelength-division multiplexing system;
Journal_Title :
Optoelectronics, IEE Proceedings J
