Title :
Enhanced spectral efficiency for intensity modulated DWDM systems
Author :
Sharma, Neeraj ; Vij, Robin ; Badhan, Neha
Author_Institution :
Inst. of Eng. & Technol., Panjab Univ., Chandigarh, India
fDate :
Feb. 27 2015-March 1 2015
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, Stimulated Raman Scattering, Stimulated Brillouin Scattering, Cross Phase Modulation to achieve high spectral efficiency for different intensity modulated DWDM systems. We propose the concept of non-uniform or unequal channel spacing and non-uniform power assignment between adjacent channels of the DWDM system. The different intensity modulation formats considered in this paper are NRZ, RZ, CSRZ and Duo-binary. A comparison of performance is also presented between these formats.
Keywords :
channel spacing; intensity modulation; optical fibre networks; optical modulation; wavelength division multiplexing; cross phase modulation; four wave mixing; global telecommunication network; intensity modulated DWDM systems; nonuniform power assignment; optical transmission systems; spectral efficiency enhancement; stimulated Brillouin scattering; stimulated Raman scattering; unequal channel spacing; wavelength division multiplexed system; Channel spacing; Nonlinear optics; Optical modulation; Optical signal processing; Q-factor; Wavelength division multiplexing; CSRZ & DB modulation formats; Fiber nonlinearities; NRZ; Non-uniform or unequal channel spacing; Non-uniform power assignment; RZ; Spectral efficiency;
Conference_Titel :
Communications (NCC), 2015 Twenty First National Conference on
Conference_Location :
Mumbai
DOI :
10.1109/NCC.2015.7084818
