摘要: This chapter reviews fabrication of Bragg gratings. It deals with the principles holographic, point-by-point replication and technologies involved in process: various arrangements Lloyd mirror interferometers, phase-mask, along different type long-period gratings, chirped ultralong The attributes some laser sources commonly used for are also introduced chapter. Further many schemes proposed both holographic nonholographic grating inscription. Fiber gratings that operate at wavelengths other than near writing wavelength fabricated by techniques broadly fall into two categories which include non-interferometric. former use a beam splitter to divide single input UV two, interfering fiber; latter depend on periodic exposure fiber pulsed or through spatially amplitude mask. phase mask is normally one methods photoresist over coated, silica plate an electron form pattern exposure. found if tilted out plane, inscribed slanted direction propagation mode. mode polarization conversion elaborated.