| Specialising in the design and manufacture of leading edge optical fibre cables, optical connectivity and speciality photonics products for high-speed optical networks, OFS, USA, has recently launched its new line of GeoFibres optimised for down hole deployment and designed to meet the geophysical industry�s need for highly specialised fibres. The base fibres include four options of 50�m graded index, the standard for distributed temperature sensing, and four single-mode fibres for down hole and well-to-well data transmission. All fibres feature the dual coating system comprised of a hermetic carbon layer followed by Pyrocoat� high-temperature polyimide (300�C).
�We have made tough glass for harsh environments�, commented Cathy Ciardiello, geophysical market manager for OFS. �Previously, geophysical conditions were insurmountable for optical fibres conventionally coated with acrylate. OFS has a unique dual-coating system used on all GeoFibres: carbon for hermeticity, polyimide for high-temperatures up to 300�C. The geophysical market has adopted graded-index 50 �m fibre, a telecommunications standard product as its standard for distributed temperature sensing. OFS has years of experience processing mega-kilometres of this product. The combination of this high-quality glass and the dual-coating system make our GeoFibres second to none�.
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