Title :
Bragg gratings on InGaAsP/InP waveguides as polarization independent optical filters
Author :
Cremer, C. ; Heise, G. ; März, R. ; Schienle, M. ; Schulte-Roth, G. ; Unzeitig, H.
Author_Institution :
Siemens AG, Munich, West Germany
fDate :
11/1/1989 12:00:00 AM
Abstract :
The fabrication and operation of Bragg gratings for future wavelength-division multiplexing (WDM) devices in integrated optical circuits are discussed. Crosstalk attenuation of more than 20 dB with respect to the optical power and spectral bandwidths of up to 2.2 nm were achieved. Polarization-independent operation of the gratings, an important qualification for their operation in fiber optical transmission systems, was demonstrated with a filter bandwidth of 0.2 nm at -10 dB and channel spacings as small as 1 nm
Keywords :
III-V semiconductors; diffraction gratings; frequency division multiplexing; gallium arsenide; gallium compounds; indium compounds; integrated optics; multiplexing equipment; optical communication equipment; optical filters; optical waveguides; 1 nm; 2.2 nm; III-V semiconductors; InGaAsP-InP; WDM devices; channel spacings; crosstalk attenuation; fabrication; fiber optical transmission systems; integrated optical circuits; optical power; optical waveguides; polarization independent optical filters; spectral bandwidths; wavelength-division multiplexing; Bandwidth; Bragg gratings; Indium phosphide; Optical attenuators; Optical crosstalk; Optical devices; Optical filters; Optical waveguides; Polarization; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
