Title :
Effects of gamma rays on optical transmission of ZrF4-based fluoride fibres
Author :
Ohishi, Y. ; Mitachi, S. ; Takahashi, S. ; Miyashita, T.
Author_Institution :
Nippon Telegraph and Telephone Public Corporation, Ibaraki Electrical Communication Laboratory, Tokai, Japan
fDate :
4/1/1985 12:00:00 AM
Abstract :
The induced absorption losses for ZrF4-based fluoride glass and fibre after being subjected to gamma-ray irradiation are measured in the 0.2¿5 ¿m wavelength range. The induced loss in the 2.55¿3.65 ¿m wavelength range is 1050¿2300 dB/km/106 roentgens, which is comparable with that for doped silica fibre at 1.5 ¿n. The formation of colouration in ZrF4-based fluoride fibre material can be suppressed by iron or titanium doping.
Keywords :
gamma-ray effects; light transmission; optical fibres; optical glass; optical losses; zirconium compounds; 200 to 500 nm; ZrF4 based fluoride glass; ZrF4-based fluoride fibres; colouration formation; gamma-ray irradiation; induced absorption losses; optical transmission;
Journal_Title :
Optoelectronics, IEE Proceedings J
DOI :
10.1049/ip-j:19850022
