26 February 2015 A family of fiber-optic based pressure sensors for intracochlear measurements
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Fiber-optic pressure sensors have been developed for measurements of intracochlear pressure. The present family of transducers includes an 81 μm diameter sensor employing a SLED light source and single-mode optic fiber, and LED/multi-mode sensors with 126 and 202 μm diameter. The 126 μm diameter pressure sensor also has been constructed with an electrode adhered to its side, for coincident pressure and voltage measurements. These sensors have been used for quantifying cochlear mechanical impedances, informing our understanding of conductive hearing loss and its remediation, and probing the operation of the cochlear amplifier.
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Elizabeth S. Olson, Elizabeth S. Olson, Hideko H. Nakajima, Hideko H. Nakajima, "A family of fiber-optic based pressure sensors for intracochlear measurements", Proc. SPIE 9303, Photonic Therapeutics and Diagnostics XI, 93031O (26 February 2015); doi: 10.1117/12.2178056; https://doi.org/10.1117/12.2178056

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