Title :
Demonstration of low loss integrated InGaAsP/InP demultiplexer device with low polarisation sensitivity
Author :
Ojha, S.M. ; Thompson, G.H.B. ; Rogers, C.B. ; Clements, Stephen J. ; Asghari, Mehdi ; White, Ian H.
Author_Institution :
BNR Europe Ltd., Harlow, UK
fDate :
4/29/1993 12:00:00 AM
Abstract :
An integrated InGaAsP/InP wavelength demultiplexer operating around 1.5 mu m wavelength, using total internal reflection from dry-etched collimating mirrors and transmission grating, has been realised in polarisation insensitive symmetrical slab waveguide. The device exhibits polarisation dispersion that equates to less than 1 nm spectral dispersion, losses down to 7.2 dB and crosstalk less than -20 dB.
Keywords :
III-V semiconductors; demultiplexing equipment; diffraction gratings; gallium arsenide; gallium compounds; indium compounds; integrated optics; light polarisation; optical communication equipment; optical losses; optical waveguides; 1.5 micron; 7.2 dB; DEMUX; InGaAsP-InP; dry-etched collimating mirrors; low loss; low polarisation sensitivity; polarisation insensitive symmetrical slab waveguide; total internal reflection; transmission grating; wavelength demultiplexer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930538
