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Updated: May 30, 2026
Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
Point-by-point inscription of apodized fiber Bragg gratings
Robert J Williams1, Christian Voigtländer, Graham D Marshall
1Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), MQ Photonics Research Centre, Department of Physics and Astronomy, Macquarie University, New South Wales 2109, Australia. robert.williams@mq.edu.au
Abstract:
We demonstrate apodized fiber Bragg gratings (FBGs) inscribed with a point-by-point (PbP) technique. We tailor the grating phase and coupling amplitude through precise control over the longitudinal and transverse positions of each laser-inscribed modification. This method of apodization is facilitated by the highly localized, high-contrast modifications generated by focused IR femtosecond laser inscription. Our technique provides a simple method for the design and implementation of PbP FBGs with complex apodization profiles.
