Title :
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
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 Vπ 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;
Conference_Titel :
Advanced Technologies for Communications (ATC), 2014 International Conference on
Print_ISBN :
978-1-4799-6955-5
DOI :
10.1109/ATC.2014.7043374
