Novel technique for nonlinearity postcompensation of Mach-Zehnder modulator in an analog-optical link

Author

Trung-Hien Nguyen ; Tien Ban Nguyen ; Trung Hieu Bui ; Ngo-Thi-Thu Trang ; Thanh Thuy Le

Author_Institution

Fac. of Telecommun., Posts & Telecommun. Inst. of Technol., Hanoi, Vietnam

fYear

2014

Firstpage

149

Lastpage

152

Abstract

A novel technique for third-order distortion (TOD) suppression of a Mach-Zehnder modulator (MZM) in an analog-optical link is proposed and demonstrated by a numerical simulation. The results with analog input signal are presented in spectrum domain for the evaluation of link performance. A novel simple time-domain linearization scheme results in 44.5 dB spurious-free dynamic range (SFDR) improvement and allows optical modulation depths approaching π/2 radian. The peak-to-peak voltage of the modulated signal could then reach to V_π with negligible impact of MZM distortion. The work presented here demonstrates that the performance of the analog-optical link increases significantly thanks to the proposed technique.

Keywords

optical distortion; optical links; optical modulation; Mach-Zehnder modulator; analog-optical link; nonlinearity postcompensation; optical modulation depths; peak-to-peak voltage; spectrum domain; spurious-free dynamic range; third-order distortion suppression; time-domain linearization scheme; Nonlinear optics; Optical distortion; Optical fiber communication; Optical fibers; Optical modulation; Analog Optical Link; Digital Receiver; Microwave Receiver; Photonic System;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Technologies for Communications (ATC), 2014 International Conference on

Print_ISBN

978-1-4799-6955-5

Type

conf

DOI

10.1109/ATC.2014.7043374

Filename

7043374