Abstract
To obtain the coupling constant for core-mode–cladding-mode coupling, it is necessary to calculate the total power carried by the cladding mode, and the related formulas are given by T. Erdogan [J. Opt. Soc. Am. A 14, 1773 (1997)] and [J. Opt. Soc. Am. A 17, 2113 (2000) ]. I found that my formulas for and are the same as Eqs. (B2) and (B16) in the 1997 paper, but Eqs. (B3)–(B15) for are worth commenting on, and this comment gives our derivations.
© 2009 Optical Society of America
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