Title :
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
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;
Journal_Title :
Photonics Technology Letters, IEEE
