Experimental demonstration of pattern effect compensation using an asymmetrical Mach-Zehnder interferometer with SOAs

Author

Xu, Qianfan ; Yao, Minyu ; Dong, Yi ; Cai, Wenshan ; Zhang, Jianfeng

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing, China

Volume

13

Issue

12

fYear

2001

Firstpage

1325

Lastpage

1327

Abstract

We propose an asymmetrical interferometer to compensate the pattern effect in semiconductor optical amplifier (SOA) as an inline amplifier in dense wavelength-division-multiplexing (DWDM) system. Experiments are demonstrated with a commercial integrated Mach-Zehnder interferometer (MZI)-SOA. The experiments showed that in a 16/spl times/10-Gb/s DWDM system, the power penalty induced by the SOA decreased from 6.8 to 0.9 dB by the interference at 1 mW input power, and the input power dynamic range of the SOA was efficiently extended.

Keywords

Mach-Zehnder interferometers; integrated optics; laser beams; optical fibre communication; optical transmitters; semiconductor optical amplifiers; wavelength division multiplexing; 1 mW; 10 Gbit/s; DWDM system; MZI-SOA; SOAs; asymmetrical Mach-Zehnder interferometer; asymmetrical interferometer; commercial integrated Mach-Zehnder interferometer; dense wavelength division multiplexing system; dense wavelength-division-multiplexing system; inline amplifier; input power; input power dynamic range; interference; pattern effect; pattern effect compensation; power penalty; semiconductor optical amplifier; Delay; Dynamic range; Laser feedback; Optical feedback; Optical interferometry; Optical noise; Optical saturation; Semiconductor device noise; Semiconductor optical amplifiers; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.969896

Filename

969896