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An optimized design for non-zero dispersion shifted fiber with reduced nonlinear effects for future optical networks

Raja A S, Selvendran S, Priya R, Mahendran C

Optica Applicata

2014

Vol. 44, nr 4

503--519

Accommodation of many channels in dense wavelength division multiplexing networks raises the average power density of the optical networks. This results in severe nonlinear effects in the optical networks. An optimized design of non-zero dispersion shifted fiber with an enormous effective area can overcome this nonlinear effect and also offer a minimum bending loss and splice loss for a dense wavelength division multiplexing system. In this paper, the alpha-peak profile is utilized for calculating electrical field distribution and designing the refractive index profile of the non-zero dispersion shifted fiber. This fiber has a high effective area of about 120 μm2. Conjointly, the accomplished fiber has a very low bending loss of 1.40×10–14 dB/km and reduced splice loss of 4.46×10–3 dB. Due to this high effective area, the dense wavelength division multiplexing network performance is upgraded by diminishing nonlinear effects. In addition, the newly designed fiber has also a very low dispersion slope (0.057 ps/nm2km). Thus, the proposed fiber is optimized to handle high bandwidth and multiple high bit-rate wavelength channels without nonlinear impairments in the 1.55 μm window long-haul dense wavelength division multiplexing systems.