FBG Products | Fiber Bragg Grating
Fiber Bragg Grating(FBG),it is the optical fiber type device which formed the diffraction grating into the core of an optical fiber, and gave the function as a light filter.
If the core of the optical fiber which performed hydrogen loading processing is irradiated with wavelength laser, it will continue, even after the refractive index's changing with optical induction refractive-index change and stopping irradiation.
Since the direct formation of the diffraction grating can be nondestructively carried out into an optical fiber, it has many advantages, such as compatibility with a low loss, small size, quantity reliability, and the optical fiber for transmission.
In the present condition, a large number are used for optical fiber sensing systems, such as temperature, pressure, and distortion.