Chirp tuning of a fiber Bragg grating by using different tapered transducers and loading procedures: an application in the accelerometer

Yinian Zhu; Beatrys M. Lacquet; Stephanus J. Spammer

doi:10.1117/1.1403740

1 October 2001 Chirp tuning of a fiber Bragg grating by using different tapered transducers and loading procedures: an application in the accelerometer

Yinian Zhu, Beatrys M. Lacquet, Stephanus J. Spammer

Author Affiliations +

Optical Engineering, Vol. 40, Issue 10, (October 2001). https://doi.org/10.1117/1.1403740

A uniform period fiber Bragg grating can be chirped by applying an axially strain gradient. We demonstrate a novel technique for making chirped fiber Bragg gratings (CFBG), which involves bonding an unchirped fiber grating to the surface of a tapered stainless steel plate that is strained by loading. Three kinds of tapered profiles (convex, gradient and concave) of plates and two kinds of loading procedures (bending and dilating) are used as the means for an in situ absolute center wavelength shifting and reflection bandwidth broadening of a CFBG. Using this method, the center wavelength of a CFBG can be tuned from 1548.92 to 1550.99 nm, and a maximum adjustable chirp bandwidth of 2.00 nm is obtained for a fiber Bragg grating 50 mm in length. An application in the accelerometer is introduced.

©(2001) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Yinian Zhu, Beatrys M. Lacquet, and Stephanus J. Spammer "Chirp tuning of a fiber Bragg grating by using different tapered transducers and loading procedures: an application in the accelerometer," Optical Engineering 40(10), (1 October 2001). https://doi.org/10.1117/1.1403740

Published: 1 October 2001

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