Gain guided and index alternate-guided fibers designed for large-mode-area and single-mode laser with higher output power and slope efficiency

Optics Express
Xiao Shen, Wei Wei

Abstract

A gain guided and index alternate-guided fiber (GGIA-GF) is proposed and numerically demonstrated. The conditions of single mode oscillation are analyzed based on the fiber laser parameters. The output laser power and slope efficiency of the GGIA-GF laser are derived from the improved rate equations. The results show that the output characteristics of the laser based on GGIA-GF can be greatly improved than that of the gain guided and index anti-guided fiber laser through the optimal design of the fiber laser parameters. GGIA-GF would be better applied in the field of large mode area and single mode fiber lasers.

References

Aug 27, 2003·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·A E Siegman
Sep 4, 2007·Optics Letters·Ying ChenMichael Bass

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