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

Volume

8

Issue

6

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

791

Lastpage

793

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.502096

Filename

502096