Abstract
The waveguide and material dispersion are investigated for various silica‐based single‐mode optical fibers with arbitrary refractive‐index profiles. It is shown that in the case of the doubly clad optical fiber with an index difference between the core and the outer cladding Δ1 = 1.0% and that between the inner and the outer cladding Δ2 = −1.0%, where the diameter of the core 2a = 7.2 μm and the thickness of the inner cladding t = 1.1 μm, the total dispersion is reduced to within ±1 ps km−1 nm−1 over a wide spectral range of λ = 1.35–1.67 μm.
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