A pyramid wavefront sensor with no dynamic modulation

Details A pyramid wavefront sensor with no dynamic modulation A pyramid wavefront sensor with no dynamic modulation

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002optco.208...51r&link_type=abstract

Optics Communications, Volume 208, Issue 1-3, p. 51-60.

Physics

Optics

8

Scientific paper

The pyramid wavefront sensor has been introduced in the field of astronomical adaptive optics a few years ago. An important issue characterizing this wavefront sensor is how to reach high dynamical range, a task realized so far by either vibrating the pyramid or oscillating a tip-tilt mirror in a plane conjugated to the exit pupil of the telescope. A new method is proposed here to achieve the same result, without any moving part: the new approach is based on a light diffusing plate placed in an intermediate pupil plane. Some practical implementations of this concept are presented and the relevance to multi-conjugate adaptive optics is discussed.

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