Fibre Bragg gratings tuned and chirped using magnetic fields
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The authors report on the use of magnetic fields in conjunction with magnetostrictive materials for tuning and chirping optical fibre Bragg gratings. The Bragg wavelength shifts as a consequence of the strain induced in the fibre by a magnetostrictive rod when a magnetic field is applied. A tuning range of 1.1 nm has been achieved by a magnetic field of 103 mT and the grating has been chirped by applying non-uniform magnetic fields.
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Cruz, J. L. Díez Cremades, Antonio Andrés, Miguel V. Segura, A. Ortega, B. Dong, L. 1997 Fibre Bragg gratings tuned and chirped using magnetic fields Electronics Letters 33 3 235 236
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