Title :
Interference filter all-fibre directional coupler for w.d.m.
Author :
Mahlein, H.F. ; Michel, Holger ; Rauscher, W. ; Reichelt, A. ; Winzer, G.
Author_Institution :
Siemens AG, Research Laboratories, Mÿnchen, West Germany
Abstract :
Directional couplers for wavelength division multiplexing using l.e.d.s as transmitters have been realised without imaging elements. Their total insertion loss (MUX + DEMUX) is of the order of 4 dB; their crosstalk attenuation and near-end crosstalk attenuation are 30 dB and >60 dB, respectively.
Keywords :
directional couplers; multiplexing equipment; optical communication equipment; optical couplers; optical fibres; LED; WDM; crosstalk attenuation; directional coupler; insertion loss; interference filter; wavelength division multiplexing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800405
