Abstract
The beam quality factor 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.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
William Hageman, Ying Chen, Xiangru Wang, Lanlan Gao, Gyu Ug Kim, Martin Richardson, and Michael Bass
J. Opt. Soc. Am. B 27(12) 2451-2459 (2010)
Ying Chen, Vikas Sudesh, Timothy McComb, Martin C. Richardson, Michael Bass, and John Ballato
J. Opt. Soc. Am. B 24(8) 1683-1688 (2007)
Xiangru Wang, Ying Chen, William Hageman, Gyu Ug Kim, Martin Richardson, Caidong Xiong, John Ballato, and Michael Bass
J. Opt. Soc. Am. B 29(2) 191-196 (2012)