Title :
Theory and simulation of a concave diffraction grating demultiplexer for coarse WDM systems
Author :
McMullin, J.N. ; DeCorby, R.G. ; Haugen, C.J.
Author_Institution :
TRLabs, Edmonton, Alta., Canada
fDate :
4/1/2002 12:00:00 AM
Abstract :
Reflective concave diffraction gratings in multimode planar waveguide geometries are considered as wavelength separation devices for coarse wavelength division multiplexing (WDM) systems. General expressions are derived relating the number of channels, the wavelength and channel wavelength separation, and the numerical aperture of the planar slabwaveguide. Scalar electromagnetic simulations performed for a particular grating design show that acceptable performance is theoretically achievable
Keywords :
demultiplexing equipment; diffraction gratings; electromagnetic field theory; optical communication equipment; optical design techniques; optical planar waveguides; optical waveguide theory; reflectivity; telecommunication channels; wavelength division multiplexing; channel number; channel wavelength separation; coarse WDM system; concave diffraction grating demultiplexer; grating design; multimode planar waveguide geometries; numerical aperture; planar slab waveguide; reflective concave diffraction gratings; scalar electromagnetic simulations; wavelength separation devices; Arrayed waveguide gratings; Diffraction gratings; Electromagnetic diffraction; Electromagnetic waveguides; Optical diffraction; Optical fiber communication; Optical films; Optical filters; Optical waveguides; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
