Title :
Zero-loss polarisation-independent four-channel tunable optical filter in InGaAsP/InP
fDate :
2/2/1995 12:00:00 AM
Abstract :
A multi-grading filter with polarisation-independent channel positions and integrated with two amplifiers has been fabricated in InGaAsP/InP. The four tunable Bragg gratings allow the selection of one out of four channels in a WDM system at 1.55 μm. A packaged device with no fibre-to-fibre loss and worst case crosstalk below -16 dB has been fabricated
Keywords :
III-V semiconductors; demultiplexing equipment; diffraction gratings; electro-optical filters; gallium arsenide; gallium compounds; indium compounds; integrated optoelectronics; optical communication equipment; optical waveguide filters; wavelength division multiplexing; 1.55 micron; InGaAsP-InP; WDM system; crosstalk; four-channel tunable optical filter; integrated amplifiers; multi-grading filter; packaged device; polarisation-independent channel positions; tunable Bragg gratings; zero loss operation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950138
