Title:

High Temperature Effects in Fused Silica Optical Fibers, Journal of Telecommunications and Information Technology, 2021, nr 3

Creator:

Borzycki, Krzysztof ; Jaworski, Marek ; Kossek, Tomasz

Subject and Keywords:

thermal radiation ; fire test ; incandescence spectrum ; fused silica optical fiber ; fire-resistant fiber optic cable ; thermal deterioration

Description:

Fire-resistant fiber optic cables used in safety and monitoring systems playing an essential role in fire fighting and building evacuation procedures are required to temporarily maintain optical continuity when exposed to fire. However, the use of fused silica fiber at temperatures between 800◦C and 1000◦C is associated with two highly undesirable phenomena. Thermal radiation (incandescence) of optical fibers, with its intensity and spectral distribution being proportional to additional attenuation observed in the fiber’s hydroxyl absorption bands (“water peaks”) is one of them. The other consists in penetration of thermal radiation from the surroundings into the fiber, due to defects in glass, causing light scattering and resulting in fiber brittleness. Thermal radiation is a source of interference in fiber attenuation measurements performed during fire tests and affects normal operation of fiber optic data links in the event of a fire. In this article, results of laboratory tests performed on a telecom single mode and multimode fibers subjected to temperatures of up to 1000◦C are presented

Publisher:

Instytut Łączności - Państwowy Instytut Badawczy

Date:

2021, nr 3

Resource Type:

artykuł

Format:

application/pdf

Resource Identifier:

ISSN 1509-4553, on-line: ISSN 1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności