Title :
Sub-micron Si waveguide design for polarization independent Mach-Zehnder filter
Author :
Okayama, H. ; Yaegashi, H. ; Ogawa, Y.
Author_Institution :
Oki Electr. Ind. Co., Ltd., Hachioji, Japan
Abstract :
We report the design for the polarization independent Mach-Zehnder interferometer wavelength filter using sub-micron Si waveguide. The same waveguide cross sections can be used for the directional coupler and phase shifter. A high refractive index upper cladding structure enables an easy integration of the filter device and spot size converter. Optimized ridge waveguide also shows polarization independence.
Keywords :
Mach-Zehnder interferometers; claddings; elemental semiconductors; integrated optics; light polarisation; micro-optics; optical design techniques; optical directional couplers; optical filters; optical phase shifters; optical waveguides; refractive index; ridge waveguides; silicon; Mach-Zehnder interferometer wavelength filter; Si; directional coupler; filter device integration; finite element method; high refractive index upper cladding; optimized ridge waveguide; phase shifter; polarization independent Mach-Zehnder filter; spot size converter; submicron Si waveguide design; waveguide cross sections; Directional couplers; Filters; Optical fiber polarization; Optical interferometry; Optical network units; Optical waveguides; Phase shifters; Phase shifting interferometry; Refractive index; Wire; Directional coupler; Interferometer; Si waveguide; Wavelength demultiplexer;
Conference_Titel :
Group IV Photonics, 2009. GFP '09. 6th IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-4402-1
Electronic_ISBN :
1949-2081
DOI :
10.1109/GROUP4.2009.5338354
