Direct detection and coherent optical systems employing error-correcting coding
Ha, Tri T.
Borchardt, Randy L.
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We evaluate the bit error probability of coded lightwave systems employing direct detection with OOK modulation, and coherent optical systems with FSK modulation and noncoherent detection. Block codes, convolutional codes, and con- catenated codes are investigated. For direct detection systems, both hard and soft decoding are considered. Only hard decoding is employed in coherent optical systems.
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