Polarisation insensitive wavelength multiplexers using stress release grooves

Author

Nadler, Ch ; Lanker, M. ; Wildermuth, E. ; Hunziker, W. ; Melchior, H.

Author_Institution

Fed. Inst. of Technol., Zurich, Switzerland

Volume

1

fYear

1998

fDate

20-24 Sep 1998

Firstpage

129

Abstract

A new method for compensating polarisation sensitivity of arrayed waveguide gratings based on SiO₂ using stress release grooves has successfully been applied. Performance of the device is not deteriorated by using this method. The method presented here using stress release grooves consists of a suitable arrangement of stress release grooves in the waveguide array. We achieved full polarisation insensitivity for (AWG) arrayed waveguide grating multiplexers by using this method while observing no degradation in performance after processing. This method for birefringence compensation has been proposed for a polarisation-insensitive Mach-Zehnder interferometer

Keywords

birefringence; compensation; diffraction gratings; integrated optics; light polarisation; optical arrays; optical communication equipment; optical waveguides; sensitivity; silicon; silicon compounds; wavelength division multiplexing; Si; SiO₂; SiO₂-Si; arrayed waveguide grating multiplexers; arrayed waveguide gratings; birefringence compensation; compensating polarisation sensitivity; full polarisation insensitivity; polarisation insensitive wavelength multiplexers; polarisation-insensitive Mach-Zehnder interferometer; stress release grooves; waveguide array; Arrayed waveguide gratings; Birefringence; Compressive stress; Etching; Internal stresses; Optical fiber devices; Optical filters; Optical polarization; Optical waveguides; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communication, 1998. 24th European Conference on

Conference_Location

Madrid

Print_ISBN

84-89900-14-0

Type

conf

DOI

10.1109/ECOC.1998.732468

Filename

732468