Low-loss rectangular-passband multiplexer consisting of a waveguide grating router synchronized to a three-arm interferometer

Author

Doerr, C.R. ; Cappuzzo, M.A. ; Chen, E.Y. ; Wong-Foy, A. ; Gomez, L.T.

Author_Institution

Lucent Technol. Bell Labs., Holmdel, NJ, USA

Volume

17

Issue

11

fYear

2005

Firstpage

2334

Lastpage

2336

Abstract

We propose and demonstrate a design for a lossless rectangular-passband multiplexer with improved passband characteristics. It consists of a waveguide grating router (WGR) synchronized to a three-arm interferometer. It is similar to our previous design of synchronizing a WGR to a two-arm interferometer, except now the passband has even sharper corners. We also show that three is the maximum number of arms for the input interferometer if one wishes to have a compact layout.

Keywords

diffraction gratings; light interferometers; multiplexing equipment; optical communication equipment; optical design techniques; optical losses; optical waveguide components; synchronisation; telecommunication network routing; improved passband characteristics; low-loss multiplexer; multiplexer design; rectangular-passband multiplexer; synchronization; three-arm interferometer; waveguide grating router; wavelength-division multiplexing; Chromatic dispersion; Directional couplers; Gratings; Multiplexing; Optical coupling; Optical filters; Optical interferometry; Optical waveguides; Passband; Rectangular waveguides; Gratings; optical directional couplers; optical filter; wavelength-division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.857620

Filename

1522311