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2017•Adaptive Optics Systems VIOpen access

Design of the MagAO-X Pyramid Wavefront Sensor

Lauren Schatz, Olivier Guyon, Jennifer Lumbres, Kelsey Miller, Justin Knight, Alexander T. Rodack, Joseph D. Long, Kyle Van Gorkom, Madison Jean, Maggie Kautz, Jared R. Males, Laird M. Close, Olivier Durney, Michael Hart

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Abstract

Adaptive optics systems correct atmospheric turbulence in real time.Most adaptive optics systems used routinely correct in the near infrared, at wavelengths greater than 1 µm.MagAO-X is a new extreme adaptive optics (ExAO) instrument that will offer corrections at visible-to-near-IR wavelengths.MagAO-X will achieve Strehls ≥70% at Hα when running the 2048 high-order actuator deformable mirror at 3.7 kHz.A visible pyramid wavefront sensor (PWFS) optimized for sensing at 600-1000 nm wavelengths will provide the high-order wavefront sensing on MagAO-X.We present the optical design and predicted performance of the MagAO-X pyramid wavefront sensor. 1

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Adaptive optics systems correct atmospheric turbulence in real time.Most adaptive optics systems used routinely correct in the near infrared, at wavelengths greater than 1 µm.MagAO-X is a new extreme adaptive optics (ExAO) instrument that will offer corrections at visible-to-near-IR wavelengths.MagAO-X will achieve Strehls ≥70% at Hα when running the 2048 high-order actuator deformable mirror at 3.7 kHz.A visible pyramid wavefront sensor (PWFS) optimized for sensing at 600-1000 nm wavelengths will provide the high-order wavefront sensing on MagAO-X.We present the optical design and predicted performance of the MagAO-X pyramid wavefront sensor. 1

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Available abstract

Adaptive optics systems correct atmospheric turbulence in real time.Most adaptive optics systems used routinely correct in the near infrared, at wavelengths greater than 1 µm.MagAO-X is a new extreme adaptive optics (ExAO) instrument that will offer corrections at visible-to-near-IR wavelengths.MagAO-X will achieve Strehls ≥70% at Hα when running the 2048 high-order actuator deformable mirror at 3.7 kHz.A visible pyramid wavefront sensor (PWFS) optimized for sensing at 600-1000 nm wavelengths will provide the high-order wavefront sensing on MagAO-X.We present the optical design and predicted performance of the MagAO-X pyramid wavefront sensor. 1

Key concepts: Strehl ratio, Adaptive optics, Wavefront, Wavefront sensor, Deformable mirror, Pyramid (geometry), Optics, Wavelength

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