Title :
An Exact Analytical Time-Domain Model for Nonlinear Optical Links with Mach-Zehnder Modulator and Photodetector in Dispersive Channel
Author :
Cho, Tae-Sik ; Yun, Changho ; Kim, Chungsan ; Kim, Kiseon
Author_Institution :
Commun. & Sensor Networks Lab., Gwangju Inst. of Sci. & Technol.
Abstract :
In this paper, a time-domain approach for exact analytical model is presented to analyze nonlinear optical links in radio-on-fiber (RoF) systems. This analytical model unifies general cases of a dual drive Mach-Zehnder modulator (DD-MZM) and photodetector (PD) in dispersive channel, which results in output current after a PD as a function of the summation of each frequency component in time domain. Additionally, the model provides explicitly power spectral density function of a photocurrent. By utilizing simulations for typical optical double sideband and single sideband signals, we confirm that the model is well matched even in relatively high input radio frequency (RF) power
Keywords :
Mach-Zehnder interferometers; optical fibre dispersion; optical modulation; photodetectors; radio-over-fibre; telecommunication channels; time-domain analysis; DD-MZM; analytical model; dispersive channel; dual drive Mach-Zehnder modulator; nonlinear optical links; photocurrent; photodetector; power spectral density function; radio frequency power; radio-on-fiber system; time-domain approach; Analytical models; Density functional theory; Dispersion; Drives; Optical fiber communication; Photoconductivity; Photodetectors; Power system modeling; Radio frequency; Time domain analysis;
Conference_Titel :
Communications, 2006. APCC '06. Asia-Pacific Conference on
Conference_Location :
Busan
Print_ISBN :
1-4244-0574-2
Electronic_ISBN :
1-4244-0574-2
DOI :
10.1109/APCC.2006.255889
