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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 23 — Aug. 10, 2003
  • pp: 4736–4746

A miniature photorefractive circuit for principal component extraction

Edeline Fotheringham and Dana Z. Anderson  »View Author Affiliations


Applied Optics, Vol. 42, Issue 23, pp. 4736-4746 (2003)
http://dx.doi.org/10.1364/AO.42.004736


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Abstract

The optical feature extractor is a photorefractive ring oscillator that can identify the strongest spatio-temporal component of its input space. The theoretical sections discuss the design and performance limitations of the signal extractor. A simple model of the filter’s nonlinear functioning enables the reader to go directly to the experimental section that describes the making of the filter and experimental results. The device, also called the auto-tuning filter, is 5 cm2 in size, has a 3 GHz processing bandwidth, and requires less than 5 mW of continuous optical power to operate.

© 2003 Optical Society of America

OCIS Codes
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing
(090.7330) Holography : Volume gratings
(100.5010) Image processing : Pattern recognition
(190.5330) Nonlinear optics : Photorefractive optics
(190.7070) Nonlinear optics : Two-wave mixing
(230.4320) Optical devices : Nonlinear optical devices

History
Original Manuscript: March 25, 2003
Published: August 10, 2003

Citation
Edeline Fotheringham and Dana Z. Anderson, "A miniature photorefractive circuit for principal component extraction," Appl. Opt. 42, 4736-4746 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-23-4736


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