Miniature solid-state directional laser Doppler velocimeter

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Miniature solid-state directional laser Doppler velocimeter

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© The Institution of Electrical Engineers
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A miniature laser Doppler velocimeter (LDV) using a single-mode solid-state semiconductor laser is described. Current-induced output frequency modulation of the laser output, combined with an unbalanced interferometer, is used to provide direction sensing.

Inspec keywords: laser velocimeters; Doppler effect

Other keywords: direction sensing; single-mode solid-state semiconductor laser; unbalanced interferometer; miniature laser Doppler velocimeter; current induced output frequency modulation

Subjects: Measurement instrumentation and techniques for fluid dynamics; Laser applications; Level, flow and volume measurement; Velocity, acceleration and rotation measurement; Velocity, acceleration and rotation measurement

References

    1. 1)
      • A. Dandridge , L. Goldberg . Current-induced frequency modulation in diode lasers. Electron. Lett. , 302 - 304
    2. 2)
      • L. Goldberg , H.F. Taylor , A. Dandridge , J.F. Weller , R.O. Miles . Spectral characteristics of semiconductor lasers with optical feedback. IEEE J. Quantum Electron. , 555 - 564
    3. 3)
      • H.Z. Cummins , E.R. Pike . (1977) Photon correlation spectroscopy and velocimetry, NATO Advanced Studies Institute Series B, 23.
    4. 4)
      • F. Durst , A. Melling , J.H. Whitelaw . (1976) , Principles and practice of laser Doppler anemonetry.
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