Standard optical fiber cables can be used in internet networks for everyday applications, but the harsh environments of avionics and space require fiber optics with optimized design and materials. OPTICAL FIBER CABLES COMPATIBLE WITH RUGGED CONNECTORS Commonly, optical fiber cable structure is defined as pictured below.
• A strength member in aramid yarn or/and glass fiber • An external jacket in various materials such as fluoropolymers (ETFE, PTFE, PFA, FEP, etc.)
Several layers of protection surround a typical Axon’ optical fiber cable .
Axon’ optical fiber cable is designed to resist harsh environments.
For harsh environments, however, materials that comprise an optical fiber cable can be optimized as follows: • An optical fiber core/cladding in silica • A coating (also called the primary buffer) in various materials such as polyacrylate, polyimide, silicone • A buffer (also called the secondary buffer) in various materials such as fluoropolymers (ETFE, PTFE, PFA, FEP, etc.)
Optical fiber cables must be fully compatible with a wide range of standardized contacts or connectors including ARINC 801, MIL (e.g., MIL-PRF-29504), and ST, FC, and LC connectors. They also must endure operational constraints (stripping, shrinkage, crushing) and resist harsh environment conditions (temperature extremes, contaminant exposure, and radiation).
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