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Spectral characteristics of coupled-waveguide Bragg-reflection tunable optical filter

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1 Author(s)
Weber, J.P. ; Ericsson Telecom AB, Stockholm, Sweden

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

Published in:

Optoelectronics, IEE Proceedings J  (Volume:140 ,  Issue: 5 )