Title :
Experimental and numerical results of optical preamplification in a laser Doppler anemometer receiving head
Author :
Többen, Helmut ; Karbsek, M.
Author_Institution :
Lab. of Liquid Meters, Phys. Tech. Bundesanstalt, Braunschweig, Germany
fDate :
2/1/2000 12:00:00 AM
Abstract :
The first application of a fiber amplifier in a laser Doppler anemometer (LDA) system is presented. Using an Nd-doped fiber amplifier as optical preamplifier in a conventional 1064-nm LDA, a small signal gain of 30 and 35 dB signal-to-noise (SNR) enhancement of the LDA radiation are achieved. The amplifier model, numerical, and experimental results are described
Keywords :
laser Doppler anemometry; laser velocimeters; optical fibre amplifiers; optical signal detection; 1064 nm; 30 dB; ASE; Nd-doped fiber amplifier; SNR enhancement; amplifier model; fluid flow measurement; laser Doppler anemometer; optical preamplification; receiving head; signal detection; small signal gain; Doped fiber amplifiers; Fiber lasers; Fluid flow measurement; Laser modes; Linear discriminant analysis; Optical fiber amplifiers; Optical fibers; Preamplifiers; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
