Frequently Asked Questions

Standard uniform FBGs are offered with grating lengths from 1 mm to 3.5 mm, bandwidths of 0.15–0.6 nm, and reflectivity from 5% to 99%; custom gratings extend length to 0.5–10 mm and reflectivity to 0.2–99.9%.

Acrylate-coated fiber suits −40 °C to +100 °C. For higher temperatures, polyimide coating supports up to 300 °C, and metal (copper or aluminum) coatings support up to 500 °C.

Yes — uniform FBGs can be supplied as a chain of gratings at different wavelengths on a single fiber, enabling multi-point temperature, strain, or other physical-parameter monitoring.