Cole, M.J., Loh, W.H., Laming, R.I., Zervas, M.N. and Barcelos, S.
Moving fibre/phase mask-scanning beam technique for enhanced flexibility in producing fibre gratings with a uniform phase mask
Electronics Letters, 31, (17), . (doi:10.1049/el:19950986).
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We demonstrate a new and flexible technique for producing photorefiactive fibre gratings with a uniform phase mask. By slowly moving the fibre relative to the mask as the writing beam is scanned, wavelength shifts, pure apodisation and phase-shifted gratings can be achieved.
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