Title:

Remedies to Thermal Radiation in Fused Silica Optical Fibers, Journal of Telecommunications and Information Technology, 2023, nr 1

Group publication title:

2023, nr 1, JTIT-artykuły

Creator:

Borzycki, Krzysztof ; Jaworski, Marek ; Kossek, Tomasz

Subject and Keywords:

fire test ; fused silica optical fiber ; fire resistant fiber optic cable ; interference filtering ; attenuation testing ; incandescent emission

Description:

During fire incidents, optical fibers located with-in a fire-resistant cable are usually exposed to temperatures of 800ºC to 1000ºC. Hot fibers generate narrowband thermal (incandescent) radiation and collect broadband thermal radiation originating from the heated surroundings. The power of the second component, initially negligible, increases with time due to the rising number of fiber cracks and other defects acting as couplers for external radiation. Thermal radiation may interfere with fiber attenuation measurements performed during a fire test, but is rather unlikely to prevent data transmission with typical GbE and 10 GbE transceivers during a fire. This problem may be remedied by combining the following methods: using single mode fibers instead of multimode fibers, using bandpass filters to block thermal radiation, and selecting proper transmitter power, wavelength and photodetector.

Publisher:

Instytut Łączności - Państwowy Instytut Badawczy

Date:

2023, nr 1

Resource Type:

artykuł

Format:

application/pdf

Resource Identifier:

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

DOI:

10.26636/jtit.2023.166222

eISSN:

1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności