Title :
All single-mode optical fibre wavelength-tunable WDM with very narrow pass/stopband separations
Author :
Shipley, S.P. ; El Fatatry, A.
Author_Institution :
GEC Research Limited, Hirst Research Centre, Wembley, UK
Abstract :
A single-mode all-fibre wavelength-division multiplexer (periodic wavelength filter) exhibiting very narrow separations (¿1 nm) between adjacent pass- and stopbands has been fabricated. The wavelengths at which this device has stop- and passbands may be varied by means of an external electrical control while maintaining a nearly constant band separation. Stopband extinctions in excess of 20 dB are reported for band separations of ¿30nm.
Keywords :
frequency division multiplexing; multiplexing equipment; optical communication equipment; optical couplers; optical fibres; tuning; couplers; external electrical control; narrow pass/stopband separations; optical communication equipment; periodic wavelength filter; single-mode optical fibre; wavelength-division multiplexer; wavelength-tunable WDM;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870377
