Title :
Modeling of reflection-transmission grating based 2DIO wavelength router
Author :
Thilakumara, Rohana Priyantha ; Penty, Richard V. ; White, Ian H.
Author_Institution :
Dept. of Electron. & Telecommun. Eng., Univ. of Moratuwa
Abstract :
This paper presents an analytic study of a single-mode linear reflection-transmission-grating (RTG)-based two-dimensional-integrated-optic (2DIO) NtimesN wavelength router. To determine its performance, the optical field propagation in the router is simulated using a slab waveguide based on the ABCD matrix theory for low diverging Gaussian beams. In predicting the limits of operation, sources of crosstalk are determined, and their dependence upon fabrication errors such as mask alignment errors is also analyzed. Methods to minimize these are discussed. Finally, the model shows that the device is equally suitable for coarse and dense wavelength division multiplexing applications
Keywords :
diffraction gratings; integrated optics; optical communication equipment; optical crosstalk; optical fibre communication; telecommunication network routing; wavelength division multiplexing; ABCD matrix theory; coarse wavelength division multiplexing; crosstalk; dense wavelength division multiplexing; low diverging Gaussian beams; mask alignment; reflection-transmission grating; two-dimensional-integrated-optic wavelength router; Error analysis; Gratings; Optical crosstalk; Optical device fabrication; Optical propagation; Optical waveguide theory; Optical waveguides; Slabs; Transmission line matrix methods; Wavelength routing; Coarse wavelength division multiplexing (CWDM); demultiplexing; dense wavelength division multiplexing (DWDM); diffraction; grating; integrated optics; optical fiber communication; two-dimensional-integrated-optic (2DIO); wavelength division multiplexing (WDM); wavelength router;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2006.880162
