Abstract

The transmission performance of trapezoidal-index profile single-mode fibers that can operate with zero dispersion in the 1.5-μm region has been investigated. The exact numerical calculations of propagation characteristics for these lightguides established a variety of relationships in terms of the parameters of a trapezoidal-index profile. One of the profile parameters that defines the shape of a trapezoid is the aspect ratio S, which ranges between 0 and 1. It was found that as the aspect ratio decreases from 1.0 to 0.3 the optimum core radius of the fiber gradually increases. But when S is <0.3, it approaches a constant equal to the value of the triangular-index profile (S = 0).

© 1983 Optical Society of America

Comparison of the wavelengths for zero total dispersion calculated from measured index profiles of depressed clad single-mode preforms and drawn fibers

U. C. Paek, M. J. Potasek, and T. L. Watros
Appl. Opt. 22(11) 1758-1762 (1983)

Ultralow loss single-mode fiber design for 2.5–6-μm band operation

Yasuyuki Okamura and Sadahiko Yamamoto
Appl. Opt. 22(19) 3098-3101 (1983)

Normalization of single-mode fibers having an arbitrary index profile

H. Matsumura and T. Suganuma
Appl. Opt. 19(18) 3151-3158 (1980)

Effects of depressed cladding on the transmission characteristics of single-mode fibers with graded-index profiles

U. C. Paek, G. E. Peterson, and A. Carnevale
Appl. Opt. 21(19) 3430-3436 (1982)

Bending loss of propagation modes in arbitrary-index profile optical fibers

Jun-ichi Sakai and Tatsuya Kimura
Appl. Opt. 17(10) 1499-1506 (1978)