How does this fiber perform in terms of mechanical “Strength Retention” under long-term high-temperature exposure?
OFSCN® polyimide optical fibers are engineered for superior mechanical strength retention, especially under long-term high-temperature exposure up to 300°C. The polyimide coating provides enhanced protection against creep and degradation that commonly affect standard acrylate-coated fibers at elevated temperatures.
For instance, OFSCN® SM Polyimide Optical Fiber and its corresponding bare Fiber Bragg Gratings (FBGs) are designed for a usable temperature range of -200℃ to 300℃, with a strain range of ≤10000με. For applications requiring even higher mechanical performance, OFSCN® High-Strength Fiber Bragg Gratings / Fiber Bragg Grating Strings (Bare), utilizing specially screened high-strength polyimide optical fiber, can withstand a strain range of ≥25000με within the -200℃ to 300℃ temperature range. This robust performance ensures long-term reliability in demanding high-temperature environments.
Here is an image related to our polyimide fibers:
You can find more detailed parameters for our polyimide optical fibers here: