Design and performance of ultra-low-loss single-mode fiber cable in 1.5-µm wavelength region

Author

Kitayama, Ken-ichi ; Uesugi, Naoshi ; Ohashi, Masaharu ; Seikai, Shigeyuki ; Ishihara, Koushi

Author_Institution

Nippon Telegraph and Telephone Public Corporation, Ibaraki, Japan

Volume

3

Issue

3

fYear

1985

fDate

6/1/1985 12:00:00 AM

Firstpage

579

Lastpage

585

Abstract

The structural optimization of single-mode fiber for use in the 1.5-μm wavelength region is made with the aim of minimizing the total transmission-line loss over a repeater section. For example, the optimum ranges of the mode-field radius w0and effective cutoff wavelength λceare determined as 5.5 μm $\\leq w_{0} \\leq 6.5 \\mu$ m and 1.35μm $\\leq \\lambda _{ce} \\leq 1.53 \\mu$ m for high bit-rate transmission systems with a repeater spacing of 80 km. Based upon the design, ultra-low-loss single-mode fiber cables are fabricated. The average loss of 108 fibers in the cables is 0.19 dB/km at 1.55 μm. The total loss of a 216-km-long fiber link containing 107 splice points was 46.3 dB. Good loss stability at high temperatures as well as during the cable manufacturing processes, are achieved by the appropriate choices of coating materials and optimized fiber parameters.

Keywords

Optical fiber cables; Distributed feedback devices; Laser feedback; Manufacturing processes; Optical fiber cables; Optical fiber communication; Optical fiber testing; Propagation losses; Repeaters; Silicon compounds; Stability;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.1985.1074218

Filename

1074218