vezelBragggratings
VezelBragggratings, more commonly known in English as fiber Bragg gratings, are periodic variations in the refractive index of an optical fiber core that reflect specific wavelengths of light while transmitting others. They are typically inscribed within the core of standard optical fibers and can be designed as narrowband reflectors or broader filters.
The reflected wavelength, called the Bragg wavelength, is approximately lambda_B = 2 n_eff Lambda, where n_eff is
Manufacture of fiber Bragg gratings commonly uses ultraviolet light to induce index modulations in photosensitive, often
Applications span telecommunications and sensing. In communications, FBGs act as wavelength-selective mirrors in fiber lasers and