2005•Optics & Optoelectronic TechnologyRequires access

Research on the Check of Light Collimation Based on Talbot Effect

Yang Kun-tao

Abstract

This paper propose a fast-checking method for the light collimation based on Talbot effect. The collimation of laser (or other ray ) beam can be checked by measuring the obliquity of Moire fringe of twin-grating. It is simple and easy to perform fast auto-measurement with high precision. Experiments have verified that the relative error of collimation is up to ± 0.012%.

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Available abstract

Key concepts: Collimated light, Optics, Moiré pattern, Grating, Talbot effect, Physics, Laser