Single mode optical fibre
A single-mode fiber, fiber technology, applied in clad fibers, multi-layer core/clad fibers, optics, etc., can solve the problems of limiting four-wave mixing nonlinear dispersion, low total waveguide dispersion, etc.
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[0073] The novel optical fiber described here includes a core region with three segments. These segments are distinguished from each other by the refractive index profile characteristics of a given segment. The three-segment core region provides sufficient flexibility for fiber design to accommodate a wide range of functional requirements. Parameters that can be varied to provide specific fiber performance are:
[0074] Δ% for each of the three domains;
[0075] the radius of each of the three regions; and
[0076] The shape of the refractive index profile for each of the three regions.
[0077] The properties of the novel fiber described here are: positive total dispersion in the specified wavelength range of 1530nm to 1570nm to counteract the non-linear effect of SPM; very low dispersion slope in the specified wavelength range to facilitate WDM operation ; and zero dispersion outside the specified wavelength to limit dispersion due to four-wave mixing. Positive dispersi...
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