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Optical Engineering

Novel configuration for lateral pressure tuning of a fiber Bragg grating without peak splitting
Author(s): Jinu Paul; Liping Zhao; Bryan Kok Ann Ngoi; Zhong Ping Fang
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Paper Abstract

Lateral-pressure tuning of a coaxially embedded fiber Bragg grating in a cylindrical polymeric package is demonstrated. The polymeric coating, having very low stiffness and high Poisson's ratio, enables effective transfer of the applied radial load to the axial direction. Such a transfer enhances the tuning range and reduces birefringence. A tuning range more than 1 nm, with negligible bandpass broadening and peak splitting, could be demonstrated. A lateral pressure sensitivity of 0.3 nm/(N/mm), which is almost 7 times as high as that of bare FBG, could be obtained.

Paper Details

Date Published: 1 October 2004
PDF: 2 pages
Opt. Eng. 43(10) doi: 10.1117/1.1783311
Published in: Optical Engineering Volume 43, Issue 10
Show Author Affiliations
Jinu Paul, Nanyang Technological Univ. (Singapore)
Liping Zhao, Singapore Institute of Manufacturing Technology (Singapore)
Bryan Kok Ann Ngoi, Nanyang Technological Univ. (Singapore)
Zhong Ping Fang, Singapore Institute of Manufacturing Technology (Singapore)

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