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Long-Range Distributed Strain and Temperature Sensing with 40-cm Spatial Resolution Based on DPP-BOTDA Employing Optical Pre-Amplification and Simplex Coding
Fiber optics sensors Stimulated scattering
2015/5/25
Sub-meter resolution sensing has been achieved employing linear pre-amplification with Simplex-coded pulses employing DPP-BOTDA. Results demonstrate a spatial resolution of ~40 cm over 56km sensing fi...
Enhanced long-range distributed strain and temperature sensing using BOTDA and optical pulse coding
Enhanced long-range distributed strain temperature sensing BOTDA optical pulse coding
2015/7/20
Optical pulse coding is successfully applied to long-range sensors based on Brillouin optical time domain analysis, achieving a record of 1 meter spatial resolution over 50 km of SMF with 2.2°C / 44 μ...
Jacket effect on strain measurement accuracy for distributed strain sensors based on Brillouin scattering
fiber optics sensors Brillouin scattering strain monitoring jacket effect
2011/4/28
Fiber jacket has a function of protecting fibers from harsh environment; it also has an impact on the measured strain accuracy. In this paper, we report on our study of jacket effect to distributed Br...