Reference beam laser Doppler velocimeter incorporating fiber optic components

Stephen W. James; Robert A. Lockey; David A. Egan; Ralph P. Tatam

doi:10.1117/12.221547

29 September 1995 Reference beam laser Doppler velocimeter incorporating fiber optic components

Stephen W. James, Robert A. Lockey, David A. Egan, Ralph P. Tatam

Proceedings Volume 2546, Optical Techniques in Fluid, Thermal, and Combustion Flow; (1995) https://doi.org/10.1117/12.221547
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

A compact reference beam laser Doppler velocimeter, constructed using a semiconductor laser diode, optical fiber components and semiconductor detectors, is reported. The device has been designed to overcome many of the problems commonly associated with reference beam configurations. The anemometer may be operated with the laser diode operation in cw and pulsed modes, demonstrating its applicability to wavelength and time division multiplexing schemes for 3D laser Doppler velocimetry. The probe is used to measure the velocity of a spinning disk in the range -20 m/s to +20 m/s.

Citation Download Citation

Stephen W. James, Robert A. Lockey, David A. Egan, and Ralph P. Tatam "Reference beam laser Doppler velocimeter incorporating fiber optic components", Proc. SPIE 2546, Optical Techniques in Fluid, Thermal, and Combustion Flow, (29 September 1995); https://doi.org/10.1117/12.221547

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