Title :
Simple model for polarization sensitivity of silica waveguide Mach-Zehnder interferometer
Author :
Heise, G. ; Narevich, R.
Author_Institution :
OpTun GmbH, Muenchen, Germany
Abstract :
We propose a model for polarization response of Mach-Zehnder interferometer (MZI). Our model explains in particular the phase shift between two polarization states with low power applied to thermooptical heaters. We reproduce test results and, based on the model, propose ways to reduce the polarization sensitivity of MZI-based devices such as variable optical attenuators.
Keywords :
Mach-Zehnder interferometers; light polarisation; optical attenuators; optical phase shifters; optical planar waveguides; optical waveguide theory; silicon compounds; thermo-optical effects; Mach-Zehnder interferometer; phase shift; planar lightwave circuits; polarization response; polarization sensitivity; polarization states; silica waveguide; thermooptical heaters; variable optical attenuators; Arm; Birefringence; Gratings; Optical attenuators; Optical interferometry; Optical polarization; Optical sensors; Optical waveguides; Page description languages; Silicon compounds; Optical phase shifters; optical polarization; planar waveguides; waveguide junctions;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.854342
