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Optical correlation with totally incoherent light.

A Pe'er, D Wang, A W Lohmann

|December 15, 2007

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A novel optical correlator successfully operates using totally incoherent light, achieving detectable correlation peaks with white light. This design overcomes chromatic aberrations using practical achromatic lenses and Fresnel zone plates.

Area of Science:

Optics and Photonics
Information Optics

Background:

Optical correlators traditionally require coherent light sources.
Chromatic aberrations pose a significant challenge for incoherent optical systems.

Purpose of the Study:

To develop and experimentally validate an optical correlator capable of operating with totally incoherent light.
To address and compensate for chromatic aberrations in an incoherent optical correlator design.

Main Methods:

Design of a practical optical correlator configuration utilizing achromatic lenses.
Integration of Fresnel zone plates to manage optical path differences.
Experimental testing with totally incoherent white light to assess performance.

Main Results:

Related Experiment Videos

Demonstration of detectable correlation peaks using incoherent white light.
Successful compensation for chromatic aberrations through specialized optical element design.
Validation of the practical configuration through experimental procedures.

Conclusions:

An optical correlator operating with totally incoherent light is feasible.
The proposed design offers a practical solution for incoherent optical correlation.
Achieving correlation with white light opens new possibilities for optical information processing.