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Conference Paper
Optical Fiber Sensors
Cancun Mexico
October 23, 2006
ISBN: 1-55752-817-9
Interferometric and Polarimetric Sensors (ThB)

Adaptive Fiber-Optic Vibration Sensor Based on CdTe Crystal

Roman V. Romashko, Yuri N. Kulchin, Salvatore Di Girolamo, Ervin Nippolainen, Alexei A. Kamshilin, and Jean C. Launay


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An adaptive fiber-optical measuring system for vibrations monitoring, which is based on dynamic reflection hologram recorded in the photorefractive crystal of cubic symmetry without applying any electrical field is developed. Adaptive properties of dynamic hologram enable the solution of an interferometer’s working point uncontrollable drift problem caused by external factors. Use of semiconductor crystal CdTe with fast recording time of a dynamic hologram makes it possible to achieve high cutoff frequencies at reasonably low light intensities. As a result the measuring system is characterized by low energy consumption and ability of stable operation of long duration in real environment.

© 2006 Institute of Electronics, Information and Communication Engineers

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(160.5320) Materials : Photorefractive materials
(190.7070) Nonlinear optics : Two-wave mixing

R. V. Romashko, Y. N. Kulchin, S. Di Girolamo, E. Nippolainen, A. A. Kamshilin, and J. C. Launay, "Adaptive Fiber-Optic Vibration Sensor Based on CdTe Crystal," in Optical Fiber Sensors, OSA Technical Digest (CD) (Optical Society of America, 2006), paper ThB6.

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