Title :
Few-moded solitary-fibre optical transversal filter
Author_Institution :
Phys. Lab., Kent Univ., Canterbury, UK
Abstract :
A new type of transversal filter for RF and microwave signals on an optical carrier is described. It is based on the coupling and delay between different spatial modes of a solitary few-moded optical fibre. The principle is demonstrated experimentally by constructing four point rectangular and Hamming filters from standard telecommunication fibre using microbend couplers.
Keywords :
delay lines; optical communication equipment; optical fibres; optical filters; optical waveguide components; spatial filters; Hamming filters; RF signals; four point rectangular filters; microbend couplers; microwave signals; optical carrier; optical transversal filter; solitary few-moded optical fibre; spatial modes; standard telecommunication fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921257
