Abstract
This paper presents a microgap multicavity Fabry–Pérot interferometric sensor fabricated by wet
etching and fusion splicing of single-mode optical fibers. The temperature dependence of the optical thickness
measurement of self-assembled thin films can be compensated by extracting the temperature information from the
multiplexed temperature sensor. Experimental results demonstrate that thin-film characteristics under temperature
variations can be examined accurately. The high-temperature sensitivity of the temperature sensor also enables
biosensing under temperature variations. This greatly improves the flexibility in sample handling and provides the
opportunity to investigate temperature effects in biological applications.
© 2007 IEEE
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