Focal plane masks in adaptive optics systems

Details Focal plane masks in adaptive optics systems Focal plane masks in adaptive optics systems

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3762..283s&link_type=abstract

Proc. SPIE Vol. 3762, p. 283-293, Adaptive Optics Systems and Technology, Robert K. Tyson; Robert Q. Fugate; Eds.

Physics

Optics

Scientific paper

This paper gives a general overview of the application of focal plane masks to adaptive optical wavefront sensing systems, and shows how they are related to several wavefront sensor used in optical shop testing. The results of several numerical simulation of a wavefront sensor based on a phase contrast type focal plane mask are then presented. In the last section, we outline a proposal for a wavefront sensor based on a dark ground type focal plane mask. This method can be used in conjunction with fiber based optical interferometers to yield an adaptive optics system which does not need to take corrected light from the observation path for use in the analysis of the aberrations. Only aberrated light is taken from the observation path and sent to the wavefront sensor, thus creating a very economical wavefront sensor.

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