Design and fabrication of fluorescence fiber gratings

Abstract

Rare-earth-element-doped fibers are wildly used in fiber amplifiers, fiber lasers and fiber sensors. Fiber Bragg Gratings (FBGs) are very important optical components in optical communication and sensing. The fluorescence fiber grating consists of fiber amplifiers and fiber gratings. Some fabrication methods of the fluorescence fiber grating are proposed in this paper. After pretreated, for example, Hydrogen loading, the rare-earth-elements-doped fibers become photosensitive fiber. The FBGs can be fabricated along the rare-earth-elements-doped fiber to form the fluorescence fiber gratings. When the pump light goes through the fluorescence fiber grating, the fluorescence light emits as incoherent signal. The power spectrum can be simulated based on an effective analysis method. In experiment, the fluorescence fiber gratings is fabricated to the Erbium doped fiber after Hydrogen loading. The power spectrum of these samples are obtained.