Title :
An ARROW optical wavelength filter: design and analysis
Author :
Mao, Z.M. ; Huang, W.-P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
fDate :
7/1/1993 12:00:00 AM
Abstract :
A novel ARROW (antiresonant reflecting optical waveguide)-based optical wavelength filter is proposed. The modal characteristics of the coupled ARROW structures is analyzed rigorously by the transverse resonance method. As an alternative configuration to the conventional directional coupler filter, the proposed device features large core size compatible with fiber and nearly periodic dependence of the coupling-length on the waveguide separation, which provides more flexibility for fabrication of the device. A design procedure for this type of coupled ARROW structure used for wavelength filtering is presented. The devices designed are simulated and verified by the beam propagation method. An ARROW wavelength filter based on SiO2/TiO2 has a FWHM bandwidth narrower than 7 Å
Keywords :
integrated optics; optical communication equipment; optical filters; optical waveguides; ARROW optical wavelength filter; FWHM bandwidth; SiO2-TiO2; antiresonant reflecting optical waveguide structures; beam propagation method; configuration; core size; coupled ARROW structures; coupling-length; design procedure; modal characteristics; periodic dependence; transverse resonance method; waveguide separation; wavelength filtering; Directional couplers; Filtering; Optical design; Optical device fabrication; Optical fiber couplers; Optical fiber devices; Optical fiber filters; Optical filters; Optical waveguides; Resonance;
Journal_Title :
Lightwave Technology, Journal of
