Title :
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
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;
Conference_Titel :
Optical Communication, 1998. 24th European Conference on
Conference_Location :
Madrid
Print_ISBN :
84-89900-14-0
DOI :
10.1109/ECOC.1998.732468
