Effect of sidelobes on demultiplexing characteristics of a grating-folded directional coupler demultiplexer

Author

Shibata, Yasuo ; Oku, Satoshi ; Kondo, Yasuhiro ; Tamamura, Toshiaki

Author_Institution

NTT Opto-Electron. Labs., Kanagawa, Japan

Volume

8

Issue

1

fYear

1996

Firstpage

87

Lastpage

89

Abstract

The effect of sidelobes on the demultiplexing characteristics of a grating-folded directional coupler demultiplexer are investigated. The bit error-rate characteristics of the demultiplexed signal is examined, and a power penalty originated from the sidelobe is observed for the grating-folded directional coupler with conventional uniform grating. A phase-synchronized sampled grating is applied to suppress the sidelobe of a Bragg grating, and power-penalty-free demultiplexing is achieved in this structure.

Keywords

demultiplexing equipment; diffraction gratings; optical communication equipment; optical directional couplers; synchronisation; Bragg grating; bit error-rate characteristics; conventional uniform grating; demultiplexed signal; demultiplexing characteristics; grating-folded directional coupler demultiplexer; phase-synchronized sampled grating; power penalty; sidelobes; Bragg gratings; Couplings; Crosstalk; Demultiplexing; Directional couplers; Etching; Indium phosphide; Mirrors; Optical reflection; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.475787

Filename

475787