The technology, properties and applications of novel germanium-free nitrogen-doped silica fibers are reviewed. The key features of the plasmachemical synthesis of low- hydrogen N-doped silica fiber preforms are discussed. Optoelectronic components fabricated from N-doped silica fibers are considered: thermostable Bragg and long-period gratings, mode field converters, and filters to smooth the erbium amplifier gain spectrum. Other important properties of the new fibers, such as high resistance to ionizing radiation and efficient third harmonic generation, are also discussed.
|