FOURIER ANALYSIS BY SPECTRAL TRANSFORMATION (FAST) PHOTONIC DOPPLER VELOCIMETRY (PDV) WITH SIGNAL FADE MITIGATION

摘要

A state-of-the-art class of photonic Doppler velocimetry (PDV) diagnostic and novel methods to stabilize any class of PDV signal has been developed. The former brings velocimetry to new extremes in maximum velocity and fast time resolution, while maintaining precision velocity resolution, long record length capability, and the ability to record multiple velocities simultaneously. The latter compensates for large changes in signal intensity common in many experiments.