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Heterodyne interferometer using a novel two-frequency Nd:YAG laser

Heterodyne interferometer using a novel two-frequency Nd:YAG laser

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  • Author(s): J. Czarske 1  and  H. Müller 2
    • View affiliations
    • Affiliations: 1: Institute for Engineering Metrology, Hannover University, Hannover, Germany
      2: Laboratory for Fluid Flow Measuring Techniques, Physikalisch Technische Bundesanstalt, Braunschweig, Germany
  • Source: Volume 30, Issue 12, 9 June 1994, p. 970 – 971
    DOI:  10.1049/el:19940664 , Print ISSN 0013-5194, Online ISSN 1350-911X
© IEE
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The authors present, for the first time, the use of two orthogonal polarised axial modes of an Nd:YAG microchip laser in heterodyne interferometry. The realised heterodyne interferometer was used for direction sensitive velocity measurements.

Inspec keywords: velocity measurement; birefringence; light interferometers; light polarisation; neodymium; solid lasers; measurement by laser beam; yttrium compounds

Other keywords: YAl5O12:Nd; heterodyne interferometer; YAG:Nd; two-frequency Nd:YAG laser; direction sensitive velocity measurements; orthogonal polarised axial modes

Subjects: Solid lasers; Velocity, acceleration and rotation measurement; Laser beam applications; Optical interferometry; Velocity, acceleration and rotation measurement; Laser applications

References

    1. 1)
      • J. Czarske , F. Hock , H. Müller . Quadrarure demodulation – a new LDV burstsignal frequency estimator. Proc. SPIE , 79 - 86
    2. 2)
      • S. Yokoyama , A. Tsutomu , N. Suzuki . Intermode beat stabilized laser with frequency pulling. Appl. Opt. , 358 - 363
    3. 3)
      • Y.C. Agrawal . Quadarure demodulation in laser Doppler velocimetry. Appl. Opt. , 1685 - 1686
    4. 4)
      • H. Müller , D. Dopheide . Direction sensitive laser Doppler velocimeter using the optical frequencyshift of two stabilized laser diodes. Proc. SPIE , 323 - 330
    5. 5)
      • N.P. Schmitt , P. Peuser , S. Heinemann , A. Mehnert . A model describing the single and multiple line spectra of tunable microcrystallasers. Opt. Quantum Electron. , 527 - 544
    6. 6)
      • N.P. Schmitt , S. Heinemann , A. Mehnert , P. Peuser . (1993) Abstimmbare Mikrokristall-Laser, Proc. 10th Int. Congress Laser 1993.
    7. 7)
      • L.E. Drain . (1986) The laser Doppler technique.
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