Title :
1b/s/Hz spectrally efficient transmission for an 8 channel RZ modulated DWDM systems
Author :
Vij, Robin ; Sharma, Neelam
Author_Institution :
Inst. of Eng. & Technol., Panjab Univ., Chandigarh, India
fDate :
Jan. 31 2014-Feb. 2 2014
Abstract :
The core of the global telecommunication network consists of wavelength division multiplexed (WDM) optical transmission systems. WDM is the technology of choice as it allows for a high spectral efficiency. We propose an effective way to counter the nonlinearities like Four Wave Mixing and Cross Phase Modulation to achieve the spectral efficiency of 1 b/s/Hz using RZ modulation format. We use the concept of nonuniform channel spacing and nonuniform power assignment between adjacent channels of the DWDM system. We have simulated an 8 channel DWDM lightwave system with bit rate of 25 Gb/s and channel spacing of 25 GHz.
Keywords :
channel spacing; optical communication; optical modulation; phase modulation; telecommunication power management; wavelength division multiplexing; DWDM lightwave system; RZ modulated DWDM systems; RZ modulation format; WDM optical transmission systems; bit rate 25 Gbit/s; channel spacing; cross phase modulation; four wave mixing; frequency 25 GHz; global telecommunication network; power assignment; return-to-zero modulation; spectral efficiency; wavelength division multiplexed optical transmission systems; Channel spacing; Modulation; Optical fibers; Optical filters; Q-factor; Wavelength division multiplexing; Cross Phase Modulation (XPM); Duty Cycle; Four Wave Mixing (FWM); Nonuniform channel spacing; Nonuniform power assignment; Optical Bessel filter; Return-to-Zero (RZ) modulation format; Spectral efficiency;
Conference_Titel :
Control, Instrumentation, Energy and Communication (CIEC), 2014 International Conference on
Conference_Location :
Calcutta
DOI :
10.1109/CIEC.2014.6959142
