Studies Of The Optical Waveguide Theory And Its Applications In Arrayed Waveguide Grating Wavelength Division Multiplexer

Wavelength Devision Multiplexing (WDM) has become the technology to meet the rapid increase of bandwidth and capacity requirements in communication systems and networks, Multiplexing and De-Multiplexing devices are the key components in WDM system. Arrayed waveguide grating is one of those components which is based on PLC technology.Aim at designing arrayed waveguide grating for WDM system., The paper is concerned with the eigen functions of optical fields in dielectrics, the theories of optical waveguide eigen mode, the characteristics of optical waveguides diffracted field, the theories of mode coupling in optical waveguides and the spectral response theories and simulating method for arrayed waveguide grating. In this paper, a set of beam propagation theory based on eigen modes analysis is set up which afforded theoretical basis for designing and analyzing AWG devices. Experiment of fabricating SiO₂ layer by using porus silicon is also carried out in this paper, which is a new method for fabricating waveguide cladding layer.