Detecting weak acoustic fields by multichannel fiber-optical sensory system

Romashko, Roman V.; Bezruk, M. N.; Ermolaev, S. A.; Storozhenko, Dmitry; Kulchin, Yuri N.

doi:10.1117/12.2268124

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…For example, the authors [2] suggested the design of a single fiber double mode interferometer to control deformation of concrete constructions, in particular buildings. In the study [3], the possibility of registration and spatial reconstruction of acoustic field created in a solid plate by an adaptive 32-channel hologram interferometer was examined. Many types of sensors, such as seismometers for recording weak seismic signals, vibration and gas pressure sensors, strain gauge pressure and temperature sensors and magnetooptic sensors have also been developed based on the fiber optic interferometer.…”

Section: Introductionmentioning

confidence: 99%

Optical transmission modulation by fiber guide bending

Sedova,

Sedov,

Bazhenov

et al. 2023

J. Phys.: Conf. Ser.

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The study is aimed at finding out the influence of bending on the waveguide from the point of view of ray equivalence with its modification based on the concept of local plane waves to provide an illustrative way to describe optical transmission in a multimode optical fiber. The paper covers the physical principles of modulation of optical transmission of fiber light guide by the bending radial variation. In addition, the authors obtained the expression for the total radiant energy in the light guide bend section/cutting in the ray equivalence. The mechanism of modulation of the fiber optical light guide and obtained mathematical expressions are the theoretical foundation for producing amplitude fiber-optic sensors.

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Section: Introductionmentioning

confidence: 99%