Unbalanced Michelson's interferometer as a fiber optic distributed sensor of external signals

M. Chojnacki; Mieczyslaw Szustakowski; Marek Zyczkowski

doi:10.1117/12.438444

24 August 2001 Unbalanced Michelson's interferometer as a fiber optic distributed sensor of external signals

M. Chojnacki, Mieczyslaw Szustakowski, Marek Zyczkowski

Proceedings Volume 4535, Optical Sensing for Public Safety, Health, and Security; (2001) https://doi.org/10.1117/12.438444
Event: Systems of Optical Security, 2000, Warsaw, Poland

Abstract

The subject of this work is a novel fiber optic distributed sensor system. The system uses a technique called multiplexed reflectometric interferometry to measure dynamic strain in a network of single mode optical fiber sensors. The sensor is constructed on unbalanced fiber optic Michelson's interferometer is activated by series of double pulse. The time interval between those pulses depends on the length of the section of sensor. Acousto-optical modulator acts as an optical frequency shifter. A change in a frequency of electrical pulses exciting the modulator result in a frequency shift in each generated wave packet.

Citation Download Citation

M. Chojnacki, Mieczyslaw Szustakowski, and Marek Zyczkowski "Unbalanced Michelson's interferometer as a fiber optic distributed sensor of external signals", Proc. SPIE 4535, Optical Sensing for Public Safety, Health, and Security, (24 August 2001); https://doi.org/10.1117/12.438444

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