Luna os1200 Fiber Bragg Grating Array – Five-FBG Splice-Free Sensor Array

The Luna os1200 is a fiber Bragg grating (FBG) array for strain and temperature measurement in fiber optic sensing systems. It provides a splice-free array of five FBGs at standard center wavelengths, spaced at one-meter intervals, on polyimide-coated optical fiber.

An FBG is a reflector inside the core of the fiber that is set to a specific wavelength of light. When the fiber at the FBG location 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.

The polyimide coating transfers strain through the fiber coating to the FBG in the core and performs reliably across a wide temperature range. Because the five gratings use distinct center wavelengths, the splice-free array offers a convenient way to use the multiplexing capabilities of FBG sensors on a single fiber.

One or two FC/APC connectors and loose buffer tube protection are available as packaging options. The os1200 can be paired with Luna HYPERION interrogators as part of a high-speed multipoint fiber optic sensing system.