1 January 1991 Optical decoding and coherent detection of a four-level FSK signal
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Proceedings Volume 1372, Coherent Lightwave Communications: Fifth in a Series; (1991) https://doi.org/10.1117/12.24912
Event: SPIE Microelectronic Interconnect and Integrated Processing Symposium, 1990, San Jose, United States
Abstract
A novel 4 level FSK technique for halving the number of transmitter lasers in a multichannel FSK system is described. This is accomplished by appropriately coding two independent binary signals into a 4 level FSK signal pnor to transmission. At the receiver the local oscillator optically decodes the signal prior to envelope detection. This scheme maintains the simplicity of a binary envelope detector and results in no system performance degradation over binary FSK.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vincent A. O'Byrne, Vincent A. O'Byrne, Timothy Tatlock, Timothy Tatlock, Samuel M. Stone, Samuel M. Stone, } "Optical decoding and coherent detection of a four-level FSK signal", Proc. SPIE 1372, Coherent Lightwave Communications: Fifth in a Series, (1 January 1991); doi: 10.1117/12.24912; https://doi.org/10.1117/12.24912
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