Title :
High finesse wavelength selective coupler based on ARROWs
Author :
Delisle, V. ; Trutschel, U. ; Tremblay, H. ; Duguay, M.A. ; Lederer, F.
Author_Institution :
Dept. of Electr. Eng., Laval Univ., Que., Canada
fDate :
6/1/1996 12:00:00 AM
Abstract :
We describe the design of an add/drop filter for wavelength division multiplexing applications that has a periodic Fabry-Perot functionality with a finesse of 100. The filter is based on a directional coupler comprising antiresonant reflecting waveguides (ARROWs) that are deliberately designed to be slightly asymmetric in order to increase the finesse. The insertion loss due to filtering is 3 dB for the selected (added/dropped) wavelengths, while the cross-talk of unselected ones is -25 dB.
Keywords :
Fabry-Perot resonators; multiplexing equipment; optical communication equipment; optical crosstalk; optical design techniques; optical directional couplers; optical losses; optical waveguide filters; reflectivity; wavelength division multiplexing; 3 dB; ARROWs; add/drop filter; added wavelengths; antiresonant reflecting waveguides; cross-talk; dropped wavelengths; finesse; high finesse wavelength selective coupler; insertion loss; optical directional coupler; periodic Fabry-Perot functionality; slightly asymmetric; wavelength division multiplexing applications; Fabry-Perot; Filtering; Frequency; Optical crosstalk; Optical devices; Optical filters; Optical interferometry; Optical modulation; Optical waveguides; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
