Fiber-optic acoustic sensors with increased sensitivity by use of composite structures

Fiber-optic acoustic sensors having sensitivity nearly 2 orders of magnitude greater than that of sensors using bare fiber are reported. These new devices utilize a composite structure wherein the fiber is embedded in a material of lower elastic modulus that serves to increase the stress, and hence...

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Veröffentlicht in:Optics letters 1979-10, Vol.4 (10), p.320-321
1. Verfasser: Hocker, G B
Format: Artikel
Sprache:eng
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Zusammenfassung:Fiber-optic acoustic sensors having sensitivity nearly 2 orders of magnitude greater than that of sensors using bare fiber are reported. These new devices utilize a composite structure wherein the fiber is embedded in a material of lower elastic modulus that serves to increase the stress, and hence the optical phase shift, in the fiber for a given pressure.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.4.000320