Optical fibre musical instruments: making sense of the senseless
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- Fotsing-Djouwe, I.C., Gagné, M., Laurin, JJ. et al. J Mater Sci: Mater Electron (2009) 20: 170. doi:10.1007/s10854-007-9499-7
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This paper demonstrates how the light transmitted through a stretched optical fibre may be used to detect its modes of vibration. In particular, replacing strings of a musical instrument with optical fibre allows the fabrication of a simple acoustic instrument with a single laser source and single detector. The detected signal contains rich harmonics of the vibrating fibre. This device may be used as a vibration, temperature or strain sensor, or simply as a musical instrument. Coating the optical fibre with novel materials such as PZLT may well allow a modification of vibration properties to enhance, suppress certain harmonics or lead to the development of simple electric field sensors.