Title :
New polarisation-insensitive and robust all-fibre-optic interferometer for FM to AM conversion in optical communication
Author :
Mogensen, F. ; Pedersen, Bent ; Nielsen, Brian
Author_Institution :
NKT Res. Centre, Brandby, Denmark
Abstract :
A new polarisation-insensitive and robust all-fibre-optic interferometer is outlined and demonstrated. The interferometer consists of a polarisation maintaining (PM) 3 dB coupler and a PM fiber in a simple Sagnac configuration. An insertion loss of 1.2 dB+or-0.1 dB and an extinction ratio better than 28 dB is obtained for an interferometer designed to have a free spectral range (FSR) of 16 GHz. Exploiting the interferometer for FM to AM conversion has high potential for overcoming dispersion limitations in long distance and high-speed optical communication systems.
Keywords :
fibre optic sensors; light interferometers; optical communication equipment; optical modulation; 1.1 to 1.3 dB; PM fiber; Sagnac configuration; dispersion limitations; extinction ratio; free spectral range; insertion loss; optical communication; polarisation maintaining; robust all-fibre-optic interferometer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930982
