Distributed laser Doppler velocimeter
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Updated: Jun 20, 2026

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
Published on: February 13, 2018
Abstract:
A monobeam laser Doppler velocimeter that permits continuous recovery of the flow velocity profile along the beam is described. The scheme applies the coherence-multiplexing concept to backscattering Doppler detection. A theoretical analysis of the distributed velocimeter is given, along with a description of an experiment with a superluminescent diode source inserted in an all-fiber-optic scheme. The velocity profile of water flow in a duct is reported. The results confirm the exceptional capabilities offered by this velocimeter in experimental fluid mechanics.
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