Multicomponent heterodyne laser Doppler anemometer using chirp-modulated Nd:YAG ring laser and fibre delay lines
Multicomponent heterodyne laser Doppler anemometer using chirp-modulated Nd:YAG ring laser and fibre delay lines
- Author(s): J.W. Czarske and H. Müller
- DOI: 10.1049/el:19951011
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- Author(s): J.W. Czarske 1 and H. Müller 2
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View affiliations
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Affiliations:
1: Institute for Engineering Metrology, Universität Hannover, Hannover, Germany
2: Laboratory for Fluid Flow Measuring Techniques, Physikalisch Technische Bundesanstalt, Braunschweig, Germany
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Affiliations:
1: Institute for Engineering Metrology, Universität Hannover, Hannover, Germany
- Source:
Volume 31, Issue 17,
17 August 1995,
p.
1428 – 1430
DOI: 10.1049/el:19951011 , Print ISSN 0013-5194, Online ISSN 1350-911X
A two-dimensional directional laser Doppler anemometer using a frequency modulated Nd:YAG laser is presented for the first time. The magnitude and sign of the fluid velocity were determined by employing the heterodyne technique without having to use an external frequency shifter.
Inspec keywords: laser velocimetry; Doppler measurement; optical modulation; anemometers; laser velocimeters; ring lasers; fibre optic sensors; solid lasers; optical delay lines
Other keywords:
Subjects: Laser applications; Velocity, acceleration and rotation measurement; Level, flow and volume measurement; Velocity, acceleration and rotation measurement; Laser beam applications; Fibre optic sensors; Solid lasers; Fibre optic sensors; fibre gyros; Laser beam modulation, pulsing and switching; mode locking and tuning; Measurement instrumentation and techniques for fluid dynamics
References
-
-
1)
- J.D.C. Jones , M. Corke , A.D. Kersey , D.A. Jackson . Miniature solid-state directional laser Doppler velocimeter. Electron. Lett. , 967 - 969
-
2)
- M.A. Davis , A.D. Kersey . Scheme for negating the SBS power limit in remotely interrogated interferometricfiber sensor array. Proc. SPIE , 112 - 119
-
3)
- I. Freitag , D. Golla , S. Knoke , W. Schöne , H. Zellmer , A. Tünnermann , H. Welling . Amplitude and frequency stability of a diode-pumped Nd:YAG laser operatingat a single-frequencycontinuous-wave output power of 20 W. Opt. Lett. , 462 - 464
-
4)
- J.E. Schröder , C.J. Nielsen . Wide-range directional LDV employing modulated semiconductor laser source. Electron. Lett. , 469 - 470
-
5)
- J. Czarske , H. Müller . Birefringent Nd:YAG microchip laser used in heterodyne vibrometry. Opt. Commun. , 223 - 229
-
6)
- J. Czarske , R. Philipps , I. Freitag . Spectral proerties of diode-pumped nonplanar monolithic Nd:YAG ring lasers. Appl. Phys. B, Opt.
-
7)
- Müller, H., Czarske, J., Kramer, R., Többen, H., Dopheide, D., Arndt, V., Wang, H.: `Heterodyning and quadrature signal generation: Advantageous techniquesfor applying new frequency shiftmechanisms in the laser Doppler velocimetry', Proc. 7th Int. Symp. on Applications of Laser Techniques toFluid Mechanics, 1994, Lisbon, Portugal, p. 23.3.1–23.3.8.
-
8)
- D.C. Williams . (1993) Optical methods in engineering metrology.
-
9)
- I. Freitag , I. Kröpke , A. Tünnermann , H. Welling . Electrooptically fast tunable miniature diode-pumped Nd:YAG ring laser. Opt. Commun. , 371 - 376
-
10)
- L.E. Drain . (1986) The laser Doppler technique.
-
1)