Abstract

Leaky mode attenuation coefficients for graded index optical fibers are derived using the WKB approximation. For the case of a parabolic index profile, the attenuation coefficients for explicitly evaluated and used to calculate the leaky mode contribution to near field and attenuation measurements. Failure to observe the expected leaky mode contributions in several graded index fibers is interpreted as evidence for the presence of an additional loss mechanism.

© 1976 Optical Society of America

Tunneling leaky modes in a parabolic index fiber

S. Zemon and D. Fellows
Appl. Opt. 15(8) 1936-1941 (1976)

Pulse broadening in graded-index optical fibers

Robert Olshansky and Donald B. Keck
Appl. Opt. 15(2) 483-491 (1976)

Multimode optical waveguides with graded refractive index: theory of power launching

P. Di Vita and R. Vannucci
Appl. Opt. 15(11) 2765-2772 (1976)

Mode dependent attenuation in parabolic optical fibers

R. Olshansky and D. A. Nolan
Appl. Opt. 16(6) 1639-1641 (1977)

Refracting leaky rays in graded-index fibers

John D. Love and Clive Winkler
Appl. Opt. 17(14) 2205-2208 (1978)