We examined the possibility of using noise or pseudo-random variations of the refractive index in the design of fiber Bragg gratings (FBGs). We demonstrated theoretically and experimentally that top-hat FBGs may be designed and fabricated using this approach. The reflectivity of the fabricated top-hat FBG matches quite well with that of the designed one.
Bibliographical noteFunding: China Scholarship Council (CSC) (201403170474).
- fiber Bragg gratings
- fiber devices and optical amplifiers.