Title :
Two-stage Fabry-Perot filters as demultiplexers in optical FDMA LANs
Author :
Saleh, A.A.M. ; Stone, J.
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
Abstract :
A high-finesse optical filter can be constructed by cascading two moderate-finesse Fabry-Perot filters of different free spectral ranges. Methods for controlling the undesirable interactions within the interfilter cavity are studied. In particular, the use of an isolator, an attenuator, or a length of fiber longer than the coherence length of the light sources used is considered. The use of a three-mirror filter, which avoids the offending cavity altogether, is also considered. The implications on the number of potential users of optical frequency-division multiple-access (FDMA), local-area networks (LANs) are also addressed.<>
Keywords :
filtering and prediction theory; frequency division multiple access; local area networks; multiplexing equipment; optical filters; optical links; FDMA; Fabry-Perot filters; LAN; attenuator; demultiplexers; fiber; isolator; light sources; local-area networks; optical filter; optical frequency-division multiaccess system; three-mirror filter; Coherence; Fabry-Perot; Frequency division multiaccess; Isolators; Light sources; Optical attenuators; Optical fiber LAN; Optical fiber filters; Optical fiber networks; Optical filters;
Journal_Title :
Lightwave Technology, Journal of
