The diffractive beam parameters of LP01 mode of fiber are analyzed in detail. Based on solving linear equations, two formulas for two kinds of mode-field radii as functions of normalized frequency are presented, and relations between angular radius of far-field divergence, beam propagation factor, and normalized frequency are given. Numerical calculation indicates that the maximal relative error is smaller than 1% within a reasonable parameter range.
© 2009 Chinese Optics Letters
Lianhuang Li and Fuyuan Guo, "Diffractive beam parameters of LP01 mode of fiber," Chin. Opt. Lett. 7, 106-108 (2009)