Fabrication of polarization-maintaining and absorption-reducing fibers

Author

Shibata, Noriyoshi ; Sasaki, Yutaka ; Okamoto, Katsunari ; Hosaka, Toshihito

Author_Institution

Nipon Telegraph and Telephone Public Corp., Ibaraki-ken, Japan

Volume

1

Issue

1

fYear

1983

fDate

3/1/1983 12:00:00 AM

Firstpage

38

Lastpage

43

Abstract

Low-loss single-polarization fibers with stress-induced birefringence have been fabricated using VAD single-mode fiber preforms. Design criteria have also been clarified with due regard to optimum fiber structure that reduces transmission loss and increases birefringence. As a result of these criteria, the minimum loss of 0.4 dB/km at 1.54 μm, and the birefringence Bsof $1.2 \\times 10^{-4}$ at 1.15 μm was obtained. It has been shown that a large refractive-index difference between the core and the cladding Δ, as well as large birefringence, are very effective to stabilize the state of polarization. In a 5-km-long fiber with $\\Delta = 0.8$ percent and $B_{s}= 1.2 \\times 10^{-4}$ , crosstalk lower than -20 dB has been obtained.

Keywords

Infrared refraction; Optical fiber losses; Optical fiber materials/fabrication; Optical polarization; Anisotropic magnetoresistance; Birefringence; Fabrication; Glass; Optical devices; Optical fiber communication; Optical fiber devices; Optical fiber polarization; Propagation losses; Temperature;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.1983.1072098

Filename

1072098