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

Volume

7

Issue

11

fYear

1989

fDate

11/1/1989 12:00:00 AM

Firstpage

1641

Lastpage

1645

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.45883

Filename

45883