1 Gbit/s coherent optical communication system using a 1 W optical power amplifier
- 7 January 1993
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 29 (1) , 114-115
- https://doi.org/10.1049/el:19930074
Abstract
An experimental 1 Gbit/s, coherent optical communication system that uses a 1 W semiconductor optical power amplifier is reported. The system is intended for use in free-space crosslink applications, operates at a wavelength of 972 nm and uses a frequency-shift-key (FSK) modulated semiconductor laser master oscillator, heterodyne detection receiver, and delay-line discriminator demodulator. Communication link sensitivities of 30 detected photons per bit at a 10-6 bit error rate have been obtained. This link performance can support gigabit per second rates across geosynchronous distances.Keywords
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