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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