Title :
Coding to alleviate intermodulation distortion in coherent optical FSK single-octave SCM systems
Author :
Wu, J.H. ; Wu, Junyong ; Lee, Young-Hyun
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
For a coherent optical single-octave SCM system, the number of channels that can be located within a given optical band is a major concern. A theoretical analysis of the FSK single-octave SCM system employing Reed-Solomon codes to increase the number of channels is presented. The example shows that by using a (256, 192) rate 3/4 Reed-Solomon code, the number of channels can be increased threefold and the influence of intermodulation distortion can also be greatly reduced.
Keywords :
channel capacity; encoding; frequency division multiplexing; frequency shift keying; intermodulation; optical communication; Reed-Solomon codes; coding to alleviate intermodulation; coherent optical FSK single-octave SCM systems; number of channels; optical band; subcarrier multiplexed microwave carriers; theoretical analysis;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910277
