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Design of a large effective‐area nonzero‐dispersion fiber for DWDM systems
Author(s) -
Survaiya S. P.,
Shevgaonkar R. K.
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.1143
Subject(s) - dispersion (optics) , optics , radius , refractive index , graded index fiber , core (optical fiber) , refractive index profile , materials science , dispersion shifted fiber , normalized frequency (unit) , fiber , step index profile , wavelength division multiplexing , wavelength , polarization mode dispersion , optical fiber , bend radius , physics , fiber optic sensor , computer science , computer security , phase locked loop , frequency synthesizer , phase noise , composite material , bending
Abstract In this paper, we analyze and propose an optimum index profile which can give a larger core effective area with nonzero‐dispersion characteristics. The index profile is modeled by an exponentially modulated linear chirp profile function. A linear finite‐element method (LFEM) is used for computing the transmission characteristics of an optical fiber having an arbitrary refractive‐index profile. The optimum index profile can give a core effective area of 117 μm 2 . The dispersion varies linearly from 2.5 to 4.5 ps/nm⋅km with a dispersion slope of 0.065 ps/nm 2 ⋅km over the 1.53–1.56 μm wavelength range. Sensitivity analysis for the designed fiber characteristics is also studied. The bend loss is about 0.001 dB/m for a bend radius of 100 mm. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 29: 238–244, 2001.