@article{MAKHILLJEAS2017122114956,
    title = {FWM Investigation in 3-D, 2-D Orthogonal Modulations and
1-D Modulation in WDM System},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {12},
    number = {21},
    pages = {5462-5466},
    year = {2017},
    issn = {1816-949x},
    doi = {jeasci.2017.5462.5466},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2017.5462.5466},
    author = {Rittika and},
    keywords = {Polarisation Shift Keying (PolSK),Differential Phase Shift Keying (DPSK),Differential Quadrature Phase Shift Keying (DQPSK),Four Wave Mixing (FWM),Wavelength Division Multiplexing (WDM),exhibits},
    abstract = {Four wave mixing is a prominent and major performance deteriorating factor in WDM systems. To
suppress the FWM effects and increase data rate supportability of WDM systems, optimal modulation formats
are required. In this research, a WDM system supporting 8 channels and each at 10 Gbps is proposed by
incorporating 2 and 3D orthogonal modulation formats. Polarization shift keying is an essential modulation and
studied at different distances in terms of Q-factor. Moreover, FWM power is analyzed and comparison has been
established for 1-3D modulations at different frequency spacings such as 25, 50 and 100 GHz. The 2-D
orthogonal modulation exhibits minimum FWM and thus, recommended to use in WDM systems at ultra dense
spacings.}
    }