Abstract

Coherent lightwave heterodyne receiver sensitivities and system performance were studied for amplitude shift keying (ASK) and differential phase shift keying at bit rates of 400 Mbit/s and 1 Gbit/s. The receiver used in these experiments employed a new balanced mixer design1 which is highly efficient in its use of local oscillator (LO) power. Sensitivities are the best reported at these bit rates, and error rates as low as 10−10 were obtained.

© 1986 Optical Society of America

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