Adaptive multichannel fiber-optic interferometer for detection of ultrasonic waves in solid objects

Download article in PDF format

Authors: Romashko R. V., Bezruk M. N., Ermolaev S. A., Krishnasvami S.

Annotation: In the research we developed a multichannel adaptive measurement system based on multiplexing of signals from fiber-optic sensors in a single photorefractive crystal. The system is applied for detection of ultrasonic elastic waves propagating through solid objects.

Keywords: adaptive interferometer, dynamic hologram multiplexing, photorefractive crystal, fiber-optic sen- sors, ultrasonic detection