Estimation of dispersion parameters involving Petermann II spot size using a Gaussian-type approximation in single-mode graded index fibers

Gautam Das; Somenath N. Sarkar

doi:10.1117/1.601416

1 September 1997 Estimation of dispersion parameters involving Petermann II spot size using a Gaussian-type approximation in single-mode graded index fibers

Gautam Das, Somenath N. Sarkar

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Optical Engineering, Vol. 36, Issue 9, (September 1997). https://doi.org/10.1117/1.601416

Based on a recently prescribed simple and novel approximation of the fundamental mode, we present analytic expressions for the Petermann II spot size, suitable for evaluating the dispersion parameters of single-mode graded-index fibers. With these expressions, we calculate the group delay dispersion factor and also the normalized waveguide dispersion coefficient. On comparison, our formulation is shown to be superior to the Gaussian approximation and predicts the parameters identically with the exact numerical techniques for step and parabolic index profiles.

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Gautam Das and Somenath N. Sarkar "Estimation of dispersion parameters involving Petermann II spot size using a Gaussian-type approximation in single-mode graded index fibers," Optical Engineering 36(9), (1 September 1997). https://doi.org/10.1117/1.601416

Published: 1 September 1997

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KEYWORDS

Optical fibers

Dispersion

Graded index fibers

Single mode fibers

Step index fibers

Refractive index

Cladding

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