The os1100 Fiber Bragg Grating (FBG) is designed for use in fiber optic sensing applications. It is a two meter long polyimide coated optical fiber with one FBG spaced at one meter intervals. Fiber Bragg gratings are the fundamental elements upon which most fiber optic sensors are based. An FBG is an invisible reflector inside the core of the fiber that is set to a specific wavelength of light.

When the fiber where an FBG is located is exposed to strain or temperature, the FBG’s “center wavelength” shifts to a higher or lower wavelength. The direction and magnitude of the shift is proportional to the change in strain or temperature.

Each os1100 is built with one FBG at standard center wavelengths. os1100’s are used in applications ranging from basic experiments with FBGs to construction of complex transducers containing one or more FBGs. The polyimide coating provides excellent transfer of strain through the fiber coating to the FBG in the fiber core. Polyimide also performs well over a wide temperature range.  One or two FC/APC connectors, and loose buffer tube protection, are available as packaging options.