Dispersion and Bending Loss Sensitivities of W-Type Dispersion-Modified Single-Mode Fibers

Nobuo KUWAKI  Masaharu OHASHI  Naoshi UESUGI  

IEICE TRANSACTIONS (1976-1990)   Vol.E71   No.10   pp.1000-1005
Publication Date: 1988/10/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Electro-Optics

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The characteristics of W-type single-mode fiber with low-dispersion below 2 ps/km/nm over the 1.5-1.6µm wavelength range are theoretically discussed. It is clarified that the tolerance of the core radius and refractive index difference satisfying this dispersion conditions are 0.05µm and 0.01%. Bend-optimized W-type fibers are designed so as to minimize the bending sensitivity. It is also clarified that the allowable bending radius is reduced to less than 4 cm for the W-type fibers with a mode field diameter of 7µm.