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Densely spaced FDM optical coherent system with near quantum-limited sensitivity and computer-controlled random access channel selection

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7 Author(s)
B. Glance ; AT&T Bell Lab., Crawford Hill Lab., Holmdel, NJ, USA ; T. L. Koch ; O. Scaramucci ; K. C. Reichmann
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An FDM coherent optical network consisting of six 200 Mbit/s-FSK channels spaced by 2.2 GHz, is reported. Receiver sensitivity of 74 photons/bit for a BER of 10-9 is obtained. The channels are randomly accessed by computer control. The system has the potential to provide a through-put of 2000 Gbit/s.

Published in:

Electronics Letters  (Volume:25 ,  Issue: 14 )