Specialty Optical Fibers For Cryogenic Applications
For applications where temperatures will be below -60°C, standard telecommunications fiber will not perform optically and a special polyimide coating is necessary. Liquid natural gas facilities and pipelines, where temperatures can drop to approximately -180°C, commonly use optical fiber for monitoring temperatures (DTS and/or DAS) to look for signs of leakage. These optical fibers are housed in fiber optic cables to allow for protection of the fiber during placement of the cable. Fibers ideal for such deployment include polyimide coated single-mode and multimode fibers (pg.32 & 81-83) and cables (pg. 92-97).
Downhole Fiber Optic Cable
Downhole cable designed to meet oil and gas requirements
Fiber In Metal Tube
FIMTs available in different sizes, wall thickness and metal types for multiple applications
Graded Index Multimode Pure Silica Core Fiber
Graded index multimode pure silica core fiber with 50µm core and 125µm cladding.
Polyimide Coated SM Fiber
Polyimide coated for embedded and high temperature applications.
Slickline Fiber Optic Cables
Suitable for logging wells or incorporated in a coiled tube
Step Index High NA Multimode Pure Silica Core Fiber
High numerical aperture step index multimode pure silica core fiber with 62.5µm core, 125µm cladding
Step Index Multimode Pure Silica Core Fiber
Step index, multimode fiber with a 50µm core, 125µm cladding
Wire Armored Metal Tube
Ideal to improve handling characteristics of the FIMT
Wireline Fiber Optic Cable
Wireline cable utilize Fibercore’s hydrogen resistant, high temperature fibers