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

fYear

2014

fDate

Jan. 31 2014-Feb. 2 2014

Firstpage

513

Lastpage

518

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Instrumentation, Energy and Communication (CIEC), 2014 International Conference on

Conference_Location

Calcutta

Type

conf

DOI

10.1109/CIEC.2014.6959142

Filename

6959142