Title :
GaInAsP/InP zero-gap directional couplers as compact optical WDM filters
Author :
Schienle, Meinrad ; Stoll, L. ; Schulte-Roth, G. ; Mahlein, H.F. ; Marz, R. ; Cremer, C.
Author_Institution :
Siemens AG, Res. Lab., Munich, West Germany
Abstract :
The fabrication and characterisation of extremely compact WDM zero-gap directional couplers with buried GaInAsP/InP waveguides is reported. A device with a centre length of 178 mu m separated two channels at lambda 1=1.3 mu m and lambda 2=1.52 mu m with a crosstalk attenuation of 30 dB.
Keywords :
III-V semiconductors; frequency division multiplexing; gallium arsenide; indium compounds; optical couplers; optical fibres; optical filters; 1.3 micron; 1.52 micron; 178 micron; GaInAsP-InP; centre length; compact optical WDM filters; crosstalk attenuation; zero-gap directional couplers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890791
