Fiber Bragg Gratings
The Luna os1100 and os1200 are fiber Bragg grating (FBG) sensors for strain and temperature measurement in fiber optic sensing systems. The os1100 contains a single FBG centered in a two-meter length of polyimide-coated optical fiber, while the os1200 provides a splice-free array of five FBGs spaced at one-meter intervals on a six-meter cable.
Product Description
FBGs 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 are proportional to the change in strain or temperature.
Each os1200 is built with five FBGs at standard center wavelengths, spaced at one-meter intervals. The os1100 is a single FBG on a 2 m fiber. One or two FC/APC connectors and loose buffer tube protection are available as packaging options.
os1100 and os1200 sensors support applications ranging from introductory FBG experiments to complex transducers containing one or more fiber Bragg gratings. The polyimide coating efficiently transfers strain through the fiber coating to the FBG core and performs reliably across a wide temperature range. The splice-free os1200 array also provides a convenient way to use the multiplexing capabilities of FBG sensors.
Solutions and Applications
Pair os1100 and os1200 FBG sensors with Luna’s HYPERION interrogators as part of a complete high-speed multipoint fiber optic sensing system for strain and temperature monitoring in challenging conditions and environments.
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