Sensitivity of a pyramidic Wave Front sensor in closed loop Adaptive Optics

Details Sensitivity of a pyramidic Wave Front sensor in closed loop Adaptive Optics Sensitivity of a pyramidic Wave Front sensor in closed loop Adaptive Optics

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...350l..23r&link_type=abstract

Astronomy and Astrophysics, v.350, p.L23-L26 (1999)

Physics

Optics

31

Telescopes, Instrumentation: Adaptive Optics

Scientific paper

The Pyramidic wavefront has a very interesting property: its SNR has a significant increase once the loop is closed, similarly to the Curvature Sensor and contrasting with the Shack-Hartmann one. This result in a gain comparing the Pyramidic and the Shack-Hartmann sensors. It is shown by a combination of descriptive and numerical arguments that this gain is of the order of (D/r_0)(2) for low order modes and drift linearly down to the Shack-Hartmann case at the highest spatial frequency sampled. A discussion of the overall gain (including a first estimation of the magnitude gain) and procedures to force a true system to work in closed loop fashion are sketched.

Affiliated with

Also associated with

No associations

Rating

Sensitivity of a pyramidic Wave Front sensor in closed loop Adaptive Optics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Sensitivity of a pyramidic Wave Front sensor in closed loop Adaptive Optics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensitivity of a pyramidic Wave Front sensor in closed loop Adaptive Optics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1081509