Abstract

The effects of a central index dip and profile ripple on the total pulse width of a near-optimum optical fiber are analyzed. A comparison of our results, which are based on numerical integration of the scalar wave equation, with the results of the WKB method demonstrates that the WKB theory cannot be applied to rapidly varying refractive-index profile perturbations. Subsequently, we investigate the change in the pulse width resulting from strong mode coupling within each of the fiber’s mode groups.

© 1982 Optical Society of America

Effect of mode coupling on the total pulse response of perturbed optical fibers

David Yevick and Bjorn Stoltz
Appl. Opt. 22(7) 1010-1015 (1983)

Calculation of bandwidth from index profiles of optical fibers. 1: Theory

D. Marcuse
Appl. Opt. 18(12) 2073-2080 (1979)

Modal propagation constants, group delays, and eigenfields for practical multimode graded-index fibers

J. Hedegaard Povlsen, P. Danielsen, and G. Jacobsen
J. Opt. Soc. Am. 72(11) 1506-1513 (1982)

Calculation of bandwidth from index profiles of optical fibers. 2: Experiment

H. M. Presby, D. Marcuse, and L. G. Cohen
Appl. Opt. 18(19) 3249-3255 (1979)

Influence of mode coupling on differential mode delay

Bjorn Stoltz and David Yevick
Appl. Opt. 22(15) 2349-2355 (1983)