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Broad-passband-width optical filter for multi/demultiplexer using a diffraction grating and a retroreflector prism

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3 Author(s)
Nishi, I. ; NTT, Musashino Electrical Communication Laboratory, Musashino, Japan ; Oguchi, T. ; Kato, K.

The letter describes the experimental results of a novel optical filter for a multi/demultiplexer using a diffraction grating and a retroreflector prism. A broader passband width, which is proportional to the difference between the prism base length and the input fibre core diameter, is obtained. The minimum insertion loss is 2.2 dB.

Published in:

Electronics Letters  (Volume:21 ,  Issue: 10 )