An alignment technique based on the speckle correlation properties of Fresnel transforming optical systems

Jennifer E. Ward; Damien P. Kelly; John T. Sheridan

doi:10.1117/12.795722

2 September 2008 An alignment technique based on the speckle correlation properties of Fresnel transforming optical systems

Jennifer E. Ward, Damien P. Kelly, John T. Sheridan

Author Affiliations +

Proceedings Volume 7068, Optical System Alignment and Tolerancing II; 70680L (2008) https://doi.org/10.1117/12.795722
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

The lateral correlation properties of speckle fields have been shown to be useful in aligning multiple optical channels relative to one another. Relative rotational alignment can also be achieved using a sub-sectioning extension of this technique. In this paper, we examine the three dimensional correlation properties of speckle, and by so doing, create a technique that allows for absolute positioning of a single channel free space optical system on the optical axis without the need for markers or gratings.

Citation Download Citation

Jennifer E. Ward, Damien P. Kelly, and John T. Sheridan "An alignment technique based on the speckle correlation properties of Fresnel transforming optical systems", Proc. SPIE 7068, Optical System Alignment and Tolerancing II, 70680L (2 September 2008); https://doi.org/10.1117/12.795722

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