Detection properties of an optical fiber probe for laser speckle velocimetry
Abstract
Temporal power spectra of the speckle signal detected by a simple optical fiber probe are analyzed as a function of the laser spot size at a moving scatter plate, the velocity of the plate, the core diameter of the detecting fiber and the numerical aperture of it. The fiber probe is shown to be useful for velocity measurements of the moving scatter plate.
- Publication:
-
Optics Communications
- Pub Date:
- October 1985
- DOI:
- Bibcode:
- 1985OptCo..55..393F
- Keywords:
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- Fiber Optics;
- Laser Applications;
- Optical Measuring Instruments;
- Signal Detection;
- Speckle Patterns;
- Velocity Measurement;
- Autocorrelation;
- Luminous Intensity;
- Power Spectra;
- Scatter Plates (Optics);
- Instrumentation and Photography