Decentralized frequency stabilization scheme for a dense OFDM system involving simple filters and an absolute reference

A frequency control scheme is introduced where within each transmitter its frequency is referenced to a silica based optical frequency discriminator, which in addition is locked to an absolute reference frequency. An absolute stability of /spl plusmn/1 GHz was achieved. As frequency-determining elem...

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Published inJournal of lightwave technology Vol. 14; no. 5; pp. 649 - 654
Main Authors Kruger, U., Kruger, K., von Helmolt, C., Pawlowski, E., Depovere, G.F.G., Witlox, R.G.J.J., van Gils, R.A.J.C.M.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.05.1996
Institute of Electrical and Electronics Engineers
Subjects
Applied sciences
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Interferometers
Miscellaneous
OFDM
Optical and optoelectronic circuits
Optical filters
Optical interferometry
Optical network units
Optical receivers
Optical transmitters
Optical variables control
Silicon compounds
Temperature control
Experimental study
Frequency division multiplexing
Optical telecommunication
Frequency stability
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Summary:A frequency control scheme is introduced where within each transmitter its frequency is referenced to a silica based optical frequency discriminator, which in addition is locked to an absolute reference frequency. An absolute stability of /spl plusmn/1 GHz was achieved. As frequency-determining elements, coupler-based Michelson interferometers or coated gradient-index (GRIN) lenses were used. The described set-up is employed in an OFDM based optical crossconnect-demonstrator (RACE 2065; COBRA).
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0733-8724
1558-2213
DOI:10.1109/50.495141