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arXiv · 1105.0040

On the Beam Profile and Beam Quality of Gain-Guided Index-Antiguided Fibers with Finite Cladding Boundary

Parisa Gandomkar Yarandi·Krishna Mohan Gundu·Arash Mafi
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Abstract

The beam quality factor $M^2$ for the fundamental LP01 mode of a step-index fiber with a finite cladding diameter is calculated in the presence of gain, in a closed form, as a function of the complex generalized V-number. It is shown that the conventional infinite cladding diameter approximation cannot be used for index-antiguided gain-guided fibers, and the rigorous analysis presented in this paper is required for accurate prediction of the beam quality factor, as reported in recent experimental measurements.

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Parisa Gandomkar Yarandi, Krishna Mohan Gundu, Arash Mafi. 2011-04-30. On the Beam Profile and Beam Quality of Gain-Guided Index-Antiguided Fibers with Finite Cladding Boundary. https://doi.org/10.1364/josab.28.002430

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