XPM and SPM induced crosstalk in WDM system employing distributed Raman amplifier for DPSK and OOK modulation format |
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| Affiliation: | 1. Institut za nuklearne nauke Vinča, Univerzitet u Beogradu, Poštanski fah 522, 11001 Beograd, Serbia;2. Fakultet tehničkih nauka, Univerzitet u Novom Sadu, 21000 Novi Sad, Serbia;1. Departamento de Física, Universidad de Sonora, Blvd. Luis Encinas y Rosales S/N, Apartado Postal 1626, Col. Centro C.P. 83000, Hermosillo, Sonora, Mexico;2. Instituto Tecnológico de Hermosillo, Avenida Tecnológico S/N, Col. Sahuaro, C.P. 83170, Hermosillo, Sonora, Mexico;3. Departamento de Investigación en Física, Universidad de Sonora, Blvd. Luis Encinas y Rosales S/N, Apartado Postal 5-88, Col. Centro, C.P. 83000 Hermosillo, Sonora, Mexico;1. Mechanical Operation (Stage-II), Sagardighi Thermal Power Project, a Unit of WBPDCL, Govt. of West Bengal Enterprise, Murshidabad, Manigram 742237, West Bengal, India;2. Department of Computer Science & Engineering, College of Engineering & Management, Kolaghat KTPP Township, Purbamedinipur 721171, West Bengal, India |
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| Abstract: | Cross-phase modulation (XPM) and self-phase modulation (SPM) induced nonlinear crosstalk has been studied analytically for coherent DPSK and OOK signal in NRZ- and RZ-modulation format for WDM system employing distributed Raman amplifier. The study shows that 40 Gb/s RZ-DPSK signal with 33.3% duty cycle experiences minimum XPM and SPM induced crosstalk. The results also reveal that minimum crosstalk was induced in backward pumped DRA among the three pumping schemes i.e. forward, backward and bi-directional. Results assume importance for minimizing deleterious XPM and SPM effects in optical communication system. |
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