Aberrations: Their Effect On Off-Axis Beam Steering

C. N. Walton; J A Lupo; S. K. Rogers

doi:10.1117/12.951419

13 June 1989 Aberrations: Their Effect On Off-Axis Beam Steering

C. N. Walton, J A Lupo, S. K. Rogers

Proceedings Volume 1049, Recent Trends in Optical Systems Design and Computer Lens Design Workshop II; (1989) https://doi.org/10.1117/12.951419
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

The effect of aberrations on off-axis beam steering for multi-aperture systems was qualitatively investigated. A new expression analogous to Goodman's Thin Lens is proposed which shows the beam degradation that occurrs at angles (with respect to the optic axis) much greater than five degrees for a thin lens, and two degrees for a thick lens. This expression was then applied to three multi-aperture configurations as a way to correctly predict the field-of-view for various optical systems. Analytical predictions supported by computational and experimental results are included. Although the beam degradation as the field-of-view or field angle is increased has a dramatic effect on the image quality, the power loss as the field angle increases will be the major factor in the design of a system of this type.

Citation Download Citation

C. N. Walton, J A Lupo, and S. K. Rogers "Aberrations: Their Effect On Off-Axis Beam Steering", Proc. SPIE 1049, Recent Trends in Optical Systems Design and Computer Lens Design Workshop II, (13 June 1989); https://doi.org/10.1117/12.951419

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