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Single-crystalline tellurite optical fiber hydrophone

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Abstract

This Letter presents a novel type of single-crystalline tellurite optical fiber (SC-TOF) for potential hydrophonic applications. Both single-mode and multimode SC-TOF were fabricated. Compared with conventional devices, our preliminary results indicate that the novel device has considerably wider sensing ranges of acoustic frequency (10 Hz to 5.6 MHz or more), acoustic intensity (70 to 236dB), and directional sensitivity (0.094 to 0.04nm/deg) to the incident direction of an acoustic wave in a SC-TOF.

© 2016 Optical Society of America

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