1 August 2004 Use of laser diode in joint transform correlator
Author Affiliations +
Abstract
The use of a laser diode in a joint transform correlator (JTC) is proposed. Effects of temporal coherence, spatial coherence, astigmatism, and elliptical beams are analyzed. Laser diodes can be used in JTC, and also can be used for the correlation process in a Vander Lugt correlator and reading a hologram. Even a light-emitting diode (LED) may be used for the purposes mentioned, if its exit facet is sufficiently small. Two methods for correcting a laser diode beam using a cylindrical lens or a pair of cylindrical lenses are also reviewed. A corrected laser diode can be used in JTC to totally eliminate the effect of astigmatism.
© (2004) Society of Photo-Optical Instrumentation Engineers (SPIE)
Suganda Jutamulia, Guo-guang Mu, Hongchen Zhai, Feijun Song, "Use of laser diode in joint transform correlator," Optical Engineering 43(8), (1 August 2004). https://doi.org/10.1117/1.1763590 . Submission:
JOURNAL ARTICLE
8 PAGES


SHARE
RELATED CONTENT

Beam correction optics for laser diodes
Proceedings of SPIE (December 09 2005)
Four-channel real-time holographic associative memory
Proceedings of SPIE (December 31 1996)
Application of laser diode to optical signal processing
Proceedings of SPIE (January 11 2005)
A Real Time Optical Correlator Using An AM FM Acousto...
Proceedings of SPIE (January 04 1986)
Acoustooptic Image Correlators
Proceedings of SPIE (October 15 1986)

Back to Top