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Proceedings Paper

Fibre Optics In Coal Mining
Author(s): Paul Cooper
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Paper Abstract

Coal mines have a number of unique problems which affect the use of fibre optic technology. These include a potentially explosive atmosphere due to the evolution of methane from coal, and a dirty environment with no cleaning facilities readily available. Equipment being developed by MRDE to allow the exploitation of optical fibres underground includes: A hybrid electrical/fibre optic connector for the flexible power trailing cable of the coal-face shearer; An Intrinsically Safe (IS) pulsed laser transmitter using Frequency Shift Key (FSK) data modulation; An IS Avalanche Photo Diode Receiver suitable for pulsed & continuous wave optical signals; A mine shaft and roadway cable/ connector system incorporating low loss butt-splices and preterminated demountable connectors.

Paper Details

Date Published: 15 August 1984
PDF: 4 pages
Proc. SPIE 0468, Fibre Optics '84, (15 August 1984); doi: 10.1117/12.941646
Show Author Affiliations
Paul Cooper, National Coal Board (England)

Published in SPIE Proceedings Vol. 0468:
Fibre Optics '84

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