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We present the use of swept wavelength interferometry for distributed fiber-optic temperature measurements in a nuclear reactor. The sensors consisted of 2-m segments of commercially available, single mode optical fibers. The interrogation technique is based on measuring the spectral shift of the intrinsic Rayleigh backscatter signal along the optical fiber and converting the spectral shift to temperature.
A new idea of the optical fiber coherence tomography system designed for medical application is presented in this paper. Application as a source the femtosecond 400 mW Ti:Al2O3 pulse laser operates at wavelength 798 nm with spectral pulse bandwidth about 145 nm provides the longitudinal resolution about 2 mum. The system can be used for scanning the interior of a human body owing to application of...
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