High Resolution Distributed Strain or Temperature Measurements in Single- and Multi-mode Fiber Using Swept-Wavelength Interferometry
We present a technique for measuring distributed strain or temperature with high spatial resolution using
standard telecom-grade single mode and gradient index multimode fibers.
We describe the use of swept-wavelength interferometry for distributed fiber-optic strain and temperature sensing in single mode and gradient index multimode fiber. The method is used to measure strain in a four-strand multimode cable under twist.
S. T. Kreger et al., "High Resolution Distributed Strain or Temperature Measurements in Single-and Multi-mode Fiber using Swept-wavelength Interferometry," Optical Fiber Sensors, Cancun, Mexico, 2006.