Frequently Asked Questions

With standard high-temperature acrylate coating, up to 150 °C; polyimide coating extends this to 300 °C; aluminum or copper coating reaches 500 °C; and with steel-tube protection, FBGs can operate up to 700 °C.

Yes — hard environment FBGs can be supplied as a chain of gratings at different wavelengths on a single fiber for multi-point temperature monitoring.

Match the coating to your maximum expected temperature: acrylate for up to 150 °C, polyimide for up to 300 °C, aluminum/copper for up to 500 °C, or steel-tube protection for up to 700 °C — consult our engineering team if you're near a boundary between ranges.