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An all-fiber dense wavelength-division multiplexer/demultiplexer using photoimprinted Bragg gratings

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6 Author(s)
Bilodeau, F. ; Communication Res. Centre, Ottawa, Ont., Canada ; Johnson, D.C. ; Theriault, S. ; Malo, B.
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A wavelength multiplexing/demultiplexing device is fabricated and used to drop/insert a single wavelength channel from/into a multiple wavelength transmission link with 100 GHz channel-spacing at 1550 nm. The device consists of an all-fiber Mach-Zehnder interferometer with photoinduced Bragg gratings. The following performances were measured: extraction/coupling efficiency =99.4%, excess loss <0.5 dB, adjacent channel-isolation >20 dB, and return loss >23 dB.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:7 ,  Issue: 4 )