On the beam profile and beam quality of gain-guided index-antiguided fibers with finite cladding boundary
| Autor: | Krishna Mohan Gundu, Arash Mafi, Parisa Gandomkar Yarandi |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Optical fiber
Materials science business.industry FOS: Physical sciences Physics::Optics Statistical and Nonlinear Physics Cladding (fiber optics) Beam parameter product Atomic and Molecular Physics and Optics law.invention Double-clad fiber Optics law Fiber laser M squared Laser beam quality business Refractive index Physics - Optics Optics (physics.optics) |
| Zdroj: | Journal of the Optical Society of America B. 28:2430 |
| ISSN: | 1520-8540 0740-3224 |
| DOI: | 10.1364/josab.28.002430 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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