CLOSED-FORM, LOCALIZED WAVE SOLUTIONS IN OPTICAL-FIBER WAVE-GUIDES - COMMENT

The new bidirectional decomposition of the solution to the scalar wave equation introduced by Vengsarkar et al. [J. Opt. Soc. Am. A 9, 937 ( 1992)] characterizing highly directional pulses is shown to have anoth er solution. If the modulation spectra of the pulses considered satisf y a certain conjugation property, this solution turns out to be the co mplex conjugate of the solution presented in the above reference.