Title :
Bandwidth of directonal-coupler wavelength filters made of dissimilar optical fibres
Author :
Leminger, O. ; Zengerle, Roland
Author_Institution :
Deutsche Bundespost, Research Institute, Darmstadt, West Germany
Abstract :
Wavelength-selective directional couplers made of dissimilar single-mode fibres have a true bandpass-filter characteristic. A simple formula for estimating their bandwidth is presented. Comparison with experimental results shows good agreement.
Keywords :
band-pass filters; directional couplers; frequency division multiplexing; optical communication equipment; optical couplers; optical fibres; optical filters; bandpass-filter characteristic; bandwidth formula; directional-coupler wavelength filters; dissimilar optical fibres; dissimilar single-mode fibres; experimental results;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870170
