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Temperature compensation techniques for resonantly enhanced sensors and devices based on optical microcoil resonators

Chen, George Y., Lee, Timothy, Zhang, Xueliang, Brambilla, Gilberto and Newson, Trevor P. (2012) Temperature compensation techniques for resonantly enhanced sensors and devices based on optical microcoil resonators [in special issue: Optical micro/nanofibers: Challenges and Opportunities] Optics Communications, 285, (23), pp. 4677-4683. (doi:10.1016/j.optcom.2012.06.003).

Record type: Article


It is well known that environmental effects have a major influence on the optical stability of resonantly enhanced sensors and devices based on optical microfiber, namely in the configuration of a microcoil resonator. We propose a geometric design to reduce such effects by chirping the refractive index of successive paired turns in the microcoil resonator. The resistance to external effects such as temperature drifts can be considerably improved by optimizing the coupling coefficients and chirping profile, such that the wavelength span of the resonant condition is maximized without compensating its sensitivity to the desired measurand. We also demonstrate another technique based on resonant wavelength tuning using a compact piezoelectric ceramic disk measuring 3mm in diameter and 1mm in thickness, attaining tunability as high as 6.5pm/100V.

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Published date: 19 June 2012
Keywords: temperature compensation, microcoil resonator, current sensor, resonantly enhanced
Organisations: Optoelectronics Research Centre


Local EPrints ID: 343194
ISSN: 0030-4018
PURE UUID: da9eeaa3-5efa-4f03-934e-961d36b9011d

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Date deposited: 01 Oct 2012 14:34
Last modified: 18 Jul 2017 05:23

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Author: George Y. Chen
Author: Timothy Lee
Author: Xueliang Zhang

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