Direct, point-by-point inscription of fibre Bragg gratings by infrared femtosecond laser is reported for the first time. Gratings of first to third order have been produced in non-photosensitised, standard telecommunication fibre and dispersion shifted fibre.
Inspec keywords: optical fibre fabrication; optical fibre dispersion; laser beam applications; Bragg gratings
Other keywords:
Subjects: Optical propagation, dispersion and attenuation in fibres; Laser materials processing; Laser materials processing; Gratings, echelles; Fibre optics; Optical fibre fabrication, cladding, splicing, joining
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