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Performance parameters of a wavelength-division demultiplexer made with a single 3×3 coupler optical fiber ring or loop resonator

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1 Author(s)
Y. H. Ja ; Telecom Australia Res. Lab., Melbourne, Vic., Australia

The performance parameters of a two-channel demultiplexer made with a single 3×3 coupler fiber ring or loop resonator are evaluated theoretically. These parameters include crosstalk, output intensity of the selected channel, and channel separation. Their dependence on the parameters of the coupler and the fiber such as the coupling length of the coupler, kd, the phase change of the fiber delay line, θ, and the round-trip amplitude transmission coefficient of the fiber ring or loop G, which is the product of the amplitude transmission coefficients of the coupler and the fiber delay line and the amplitude gain of the degenerate two-wave mixing, is investigated. It is found that the best performance can be obtained at G=1

Published in:

Journal of Lightwave Technology  (Volume:11 ,  Issue: 8 )