Polarization-maintaining optical fibers with hollow circular pits

Author

Hosono, Toshio ; Hinata, Takashi ; Yoshikawa, Hiroshi

Author_Institution

Nihon University, Tokyo, Japan

Volume

4

Issue

11

fYear

1986

fDate

11/1/1986 12:00:00 AM

Firstpage

1609

Lastpage

1616

Abstract

This paper gives a detailed investigation on the polarization-maintaining optical fibers with one hollow circular pit across the core-clad interface (single circular-pit fiber (SCF)), and two hollow circular pits across the core-clad interface (double circular-pit fiber (DCF)). The field problems are analyzed by the improved point matching method. Waveguide parameters of SCF and DCF which provide the largest modal birefringence, are investigated. It was found from numerical analysis that 1) the maximum modal birefringence Bmaxfor DCF is larger than that for SCF and 2) the value of $B_{\\max } = 4.49 \\times 10^{-4}$ has been attained for DCF when the refractive-index difference is 0.5 percent. Zero-polarization-mode dispersion can be realized at $V=V_{\\max }$ , but cannot be realized just at $V = V_{\\max }$ , where $V$ is normalized frequency and Vmaxis the value of $V$ for Bmax. These results are quite reliable because a) the relative error of the modal birefringence computed by our method is less than 10^-4and b) this new method never produces ghost solutions.

Keywords

Optical fibers; Optical polarization; Birefringence; Frequency; Optical fiber communication; Optical fiber polarization; Optical fibers; Optical waveguides; Propagation constant; Space technology; Stress; Wave functions;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.1986.1074673

Filename

1074673