http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Fiber optic hydrophone sensor arrays using low reflectance internal mirrors
0.3dB - 0.4dB for the 3001 coating. Two perturbations
A new design of fiber optic hydrophone sensor arrays phics.
are applied to fiber optic hydrophone sensor arrays in
controllable low reflectance range less than 1.0%, the
fiber end. Three different coating thicknesses of the
fibers is investigated. The mirrors are produced by
forms of acoustic excitation, one generated by a
fusion arc splicing of two fibers, one of which has a
hydrophones was confirmed in these tests.
internal mirrors was tested in a water tank using two
machine was used for producing a coating on a cleaved
reflectance internal mirrors were tested. For the
semiconductor laser light source and a photodiode.
speaker in air and the other by a wave in the tank.
splicing process. The measured optical excess loss was
The feasibility of time division multiplexing of the
The hydrophones were monitored using a pulsed
the water tank. A six hydrophone array using the
thin film of TiO2 on the end. A magnetron sputtering
TiO2 material [(150 i, 250 h, and 300 i)] for the low
using low reflectance internal mirrors in optical
were obtained by varying the parameters of the
"Major subject: Electrical Engineering".
Includes bibliographical references: pages 41-42.