Multiplexed Mach–Zehnder and Fizeau tandem white light interferometric fiber optic strain/temperature sensing system

• Published in: Sensors and actuators. A. Physical. Vol. 105; no. 1; pp. 40 - 46
• Main Authors: Yuan, Libo, Yang, Jun
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 15.06.2003; Elsevier Science
• Subjects: Exact sciences and technology; Fiber optic sensor; Fiber-optic instruments; General equipment and techniques; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Multiplexed sensor array; Optical instruments, equipment and techniques; Physics; Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing; Strain sensor; Temperature sensor; White light interferometer; Temperature sensor; White light interferometer; Strain sensor; Multiplexed sensor array; Fiber optic sensor; Temperature sensors; Mach-Zehnder interferometers; Fizeau fringes; Grating interferometer; Experimental study; Sensor array; Strain sensors; Fiber optic sensors
• ISSN: 0924-4247; 1873-3069
• DOI: 10.1016/S0924-4247(03)00062-1

A novel multiplexed Mach–Zehnder and Fizeau tandem white light interferometric fiber optic sensing system permitting absolute length measurement in remote reflective sensor arrays is proposed. The sensor reflective signals characteristics have been analyzed and the relationship between light signals power and sensors total number was given for multiplexing potential evaluation. Experimentally, a three sensor array has been demonstrated.