Abstract
A fibre optical directional two component LDA utilizing the optical frequency differences of three fibre coupled 100 mW DBR laser diodes is presented. The resulting frequency shifts are used for the channel separation as well as for the directional discrimination. Additionally the use of one laser source for each LDA beam allows to multiply the laser power in the measuring volume.
First experimental results of two dimensional directional velocity measurements with the realized adjustment insensitive powerful LDA set-up are presented.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Amann, M. Ch. 1991, Wavelength tuneable single mode laser diodes, Advances in Solid State Physics, Vol 31, pp. 201–218
Czarske, J., Hock, F. and Müller, H. 1993, Quadrature demodulation — A new LDV — Burstsignal Frequency Estimator, Proc. 5th Int. Conf. Laser Anemometry — Advances and Applications, Koningshof, Veldhoven, SPIE VOL. 2052, pp. 79–86
Czarske, J., Hock, F. and Müller, H. 1994, Minimierung der Meßunsicherheit von La- ser-Doppler-Anemometern, tm — Technisches Messen, Vol. 61, no. 4, pp. 168–182
Müller, H. and Dopheide, D. 1993, Direction sensitive Doppler velocimeter using the optical frequency shift of two stabilized laser diodes, Proc. 5th Int. Conf. Laser Anemometry — Advances and Applications, Koningshof, Veldhoven, SPIE VOL. 2052, pp. 323–330
Müller, H.; Többen, H.; Arndt, V.; Strunck, V.; Wang, H.; Kramer, R.; Dopheide, D. 1994, New frequency shift techniques in laser anemometry using tunable semiconductor lasers and solid state lasers. In: Modern Techniques and Measurements in Fluid Flows: The Proceedings of The Second International Conference on Fluid Dynamic Measurement and Its Applications (edited by Shen Xiong; Sun Xijiu, International Academic Publishers Beijing, 1994), pp. 3–19
Müller, H.; Czarske, J.; Kramer, R.; Többen, H.; Arndt, V.; Wang, H.; Dopheide, D. 1994, Heterodyning and quadrature signal generation: advantageous techniques for applying new frequency shift mechanisms in the laser doppler velocimetry, Proc. 7th Int. Symposium on Application of Laser Techniques to Fluid Mechanics, Lisbon, 1994, Vol. I, pp. 23.3.1–23.3.8
Müller, H., Többen, H., Strunck, V., Arndt, V., Dopheide, D. 1995, Quadrature demodulation in novel frequency shift LDV systems as an alternative to fringe biasing. In: Laser Anemometry — 1995 — presented at the 1995 ASME/JSME fluid engineering and laser anemometry conference and exhibition, Hilton Head, South Carolina, FED-Vol. 229, pp. 455–458
Wang, H.; Müller, H.; Arndt, V.; Strunck, V.; Dopheide, D. 1994, Experimental realization of a direction sensitive two-dimensional LDA using frequency-shifted diode lasers. In: Modern Techniques and Measurements in Fluid Flows: The Proceedings of The Second International Conference on Fluid Dynamic Measurement and Its Applications (edited by Shen Xiong; Sun Xijiu, International Academic Publishers Beijing, 1994), pp. 126–129
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1997 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Müller, H., Wang, H., Dopheide, D. (1997). Fibre Optical Multicomponent LDA-System Using the Optical Frequency Difference of Powerful DBR-Laser Diodes. In: Adrian, R.J., Durão, D.F.G., Durst, F., Heitor, M.V., Maeda, M., Whitelaw, J.H. (eds) Developments in Laser Techniques and Fluid Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60911-4_2
Download citation
DOI: https://doi.org/10.1007/978-3-642-60911-4_2
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-64604-1
Online ISBN: 978-3-642-60911-4
eBook Packages: Springer Book Archive