Loss-tunable long period fibre grating made from etched corrugation structure
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A new long period fibre grating (LPFG) is demonstrated, for which the transmission loss at the resonance peak can be tuned from 1.2 to 29 dB after fabrication. For such a large tuning range, the shift of the peak loss wavelength is <2.2 nm. The tunability is obtained by adjusting the amount of stress applied to the LPFG, composed of an etched corrugation structure. No light exposure is required.
[1] A. Vengsarkar,et al. Optical fiber long-period grating sensors. , 1996, Optics letters.
[2] S. B. Lee,et al. Interferometric temperature-insensitive strain measurement with different-diameter fiber Bragg gratings. , 1997, Optics letters.
[3] Thomas K. Gaylord,et al. Long-period fibre grating fabrication with focused CO2 laser pulses , 1998 .
[4] M.A. Jackson,et al. Generalized expression for the growth of long period gratings , 1998, IEEE Photonics Technology Letters.