Alignment of an optical axis to a rotating mechanical axis using grating phase modulation

Cynthia L. Vernold, Tom D. Milster

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We describe a technique for aligning the axis of an optical system to the axis of a rotating mechanical system. The optical system is focused onto a linear grating that rotates in conjunction with the mechanical system. Light reflected from the grating produces an interference pattern in the pupil of the optical system. Temporal modulation of the fringes in the interference pattern is observed as the mechanical system rotates of the optical and mechanical axes are misaligned. Our application for this technique is in aligning an optical and mechanical system for writing circularly symmetric computer generated holograms. Experimentally we demonstrate alignments to accuracies of 0.1 micrometers.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsDaniel Malacara-Hernandez, Sofia E. Acosta, Ramon Rodriguez-Vera, Zacarias Malacara, Arquimedes A. Morales
Pages639-642
Number of pages4
StatePublished - Jan 1 1996
EventSecond Iberoamerican Meeting on Optics - Guanajuato, Mex
Duration: Sep 18 1995Sep 22 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2730
ISSN (Print)0277-786X

Other

OtherSecond Iberoamerican Meeting on Optics
CityGuanajuato, Mex
Period9/18/959/22/95

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Vernold, C. L., & Milster, T. D. (1996). Alignment of an optical axis to a rotating mechanical axis using grating phase modulation. In D. Malacara-Hernandez, S. E. Acosta, R. Rodriguez-Vera, Z. Malacara, & A. A. Morales (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 639-642). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2730).