Temporal coherence length and speckle: a simultaneous approach to those problems in holography
Abstract
The high resolution capability of an FP (Fabry-Perot) interferometer has been used to spatially separate as fringes the longitudinal modes emitted by a holographic laser and thereby to increase the coherence length of the laser to kilometers. These fringes were used for holographically multiplexing a set of independent speckle patterns of the same object and for averaging the speckle by incoherent superposition during reconstruction.
- Publication:
-
Applied Optics
- Pub Date:
- September 1975
- DOI:
- 10.1364/AO.14.002051
- Bibcode:
- 1975ApOpt..14.2051R
- Keywords:
-
- Coherent Light;
- Holographic Interferometry;
- Imaging Techniques;
- Speckle Patterns;
- Transient Response;
- Diffraction Patterns;
- Fabry-Perot Interferometers;
- Frequency Response;
- Spatial Distribution;
- Instrumentation and Photography;
- COHERENCE;
- SPECKLE PATTERNS;
- HOLOGRAPHY