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High-performance coherent optical communication system

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6 Author(s)
Glance, B. ; AT&T Bell Labs., Holmdel, NJ, USA ; Tzeng, L.D. ; Koch, T.L. ; Scaramucchi, O.
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Reports a high-performance FSK coherent optical communication system operating a 200 Mbit/s at a wavelength of 1.53 mu m. The received optical power needed to obtain a BER of 10-9 is equal to -57.2 dBm or 74 photons/bit, which is 1.7 dB from the shot noise limit. The result is obtained using monolithic frequency-tunable lasers and a high-sensitivity balanced photoreceiver.

Published in:

Electronics Letters  (Volume:25 ,  Issue: 14 )