Femtosecond FBG

Femtosecond Fiber Bragg Gratings can be inscribed in virtually all optically transparent fiber materials with a wide variety of fiber coatings, without the need to strip or recoat the fiber. This advanced femtosecond laser inscription technique preserves the fiber’s protective coating, resulting in excellent mechanical strength, which is crucial for reliable strain sensing applications.

FBGs written in radiation-resistant pure silica core fibers are especially suitable for use in the nuclear industry, where durability and resistance to harsh environments are essential. The ability to inscribe FBGs without damaging the coating expands their application range in temperature, pressure, and deformation monitoring systems.