Strehl ratio meter

Kenneth C. Widen; Richard J. Tansey

doi:10.1117/12.150631

13 August 1993 Strehl ratio meter

Kenneth C. Widen, Richard J. Tansey

Proceedings Volume 1868, Laser Resonators and Coherent Optics: Modeling, Technology, and Applications; (1993) https://doi.org/10.1117/12.150631
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

The on axis intensity of a focused beam is a critical measurement of laser wavefront quality. This paper describes a simple method and device for measuring the Strehl ratio. The device requires a collimated beam of known input size and wavelength. The experimental Strehl ratio is determined by the power within the central 1/5 of the Airy disc diameter. Error sources are discussed, as well as experimental measurements.

Citation Download Citation

Kenneth C. Widen and Richard J. Tansey "Strehl ratio meter", Proc. SPIE 1868, Laser Resonators and Coherent Optics: Modeling, Technology, and Applications, (13 August 1993); https://doi.org/10.1117/12.150631

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