DocumentCode :
1098844
Title :
A fluoride glass optical fiber operating in the mid-infrared wavelength range
Author :
Mitachi, Seiko ; Ohishi, Yasutake ; Miyashita, Tadashi
Author_Institution :
Nippon Telegraph and Telephone Public Corp., Ibaraki-ken, Japan
Volume :
1
Issue :
1
fYear :
1983
fDate :
3/1/1983 12:00:00 AM
Firstpage :
67
Lastpage :
70
Abstract :
An optical fiber operating in the mid-infrared wavelength range is fabricated using ZrF4-based fluoride glass. Material purification, the fiber fabrication process, and transmission properties are presented. The starting materials, ZrF4, BaF2, GdF3, AlF3, and SbF3are carefully purified by sublimation techniques. The "built-in" casting technique, specially developed for fluoride glass fiber, is used for preparing cladded type fiber with a smooth core-cladding interface. Spectral loss is measured in the 0.7- to 5.5-μm wavelength region, and a minimum loss of 12 dB/km is attained at 2.55 μm. Based on the refractive-index spectrum measured in the 0.4-5-\\mu m range, material dispersion characteristics are also investigated. It is indicated that material dispersion falls to zero at 1.52 μm and exhibits a gentle wavelength dependence in the present glass system.
Keywords :
Fluorine materials/devices; Optical fiber materials/fabrication; Casting; Crystalline materials; Glass; Optical fiber communication; Optical fibers; Optical losses; Optical materials; Optical refraction; Optical scattering; Wavelength measurement;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.1983.1072102
Filename :
1072102
Link To Document :
بازگشت