Mode Demultiplexers for Rectangular Multimode Waveguides

Author

Junhe Zhou ; Gallion, Philippe

Author_Institution

Dept. of Electron. Sci. & Eng., Tongji Univ., Shanghai, China

Volume

27

Issue

4

fYear

2015

fDate

Feb.15, 15 2015

Firstpage

371

Lastpage

374

Abstract

In this letter, the mode demultiplexers for rectangular multimode waveguides are proposed based on a spatial sampling and the multimode interference (MMI) effect. The modes of the rectangular waveguide are sampled by an equally spaced waveguide array and become the supermodes of the array. The supermodes are passed to a MMI coupler with phase shifters at the input ports. Owing to the MMI effect, the output optical field will concentrate on the corresponding output port, whose port number coincides with the order of the mode inside the rectangular waveguide.

Keywords

demultiplexing equipment; optical arrays; optical communication equipment; optical couplers; optical phase shifters; optical waveguides; MMI coupler; MMI effect; array supermodes; corresponding output port; equally spaced waveguide array; input ports; mode demultiplexers; mode order; multimode interference effect; output optical field; phase shifters; port number; rectangular multimode waveguides; rectangular waveguide modes; spatial sampling; Arrays; Couplers; Optical fiber couplers; Optical fiber devices; Rectangular waveguides; Mode division multiplexing; Multimode waveguides; mode division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2375208

Filename

6975040