Title :
Multiplexed sensing using optical low-coherence reflectometry
Author :
Sorin, W.V. ; Baney, D.M.
Author_Institution :
Hewlett-Packard Labs., Palo Alto, CA, USA
Abstract :
A novel multiplexed optical sensor permitting absolute length measurement in remote reflective sensor arrays is proposed. Based on optical low-coherence reflectometry, this technique has been used to demonstrate length measurements to within 10 μm for 6-m sensor cables situated 70 km from the receiver.
Keywords :
arrays; fibre optic sensors; length measurement; reflectometry; 6 m; 70 km; absolute length measurement; multiplexed optical sensor; multiplexed sensing; optical low-coherence reflectometry; remote reflective sensor arrays; sensor cables; Autocorrelation; Coherence; Delay effects; Interference; Length measurement; Optical fiber sensors; Optical interferometry; Optical sensors; Reflectometry; Sensor arrays;
Journal_Title :
Photonics Technology Letters, IEEE
