2016
DOI: 10.1117/12.2231838
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Testing the pyramid truth wavefront sensor for NFIRAOS in the lab

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Cited by 9 publications
(12 citation statements)
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“…40 Here, the pyramid sensor will measure the wavefront errors coming from both the atmospheric turbulence and telescope aberrations, including the differential segment piston errors and NCPA. 39,40 On the TMT, the PWFS is planned in the NGS SCAO mode 19 and as truth sensor in multiconjugate AO (MCAO) mode on the first light AO system NFIRAOS, 41 as well as in the XAO mode for the Planet Formation Instrument. 42 While currently PWFS are mainly applied or planned to be applied with NGS, theoretical analysis, numerical simulations, and on-sky demonstrations of its behavior with Laser Guide Stars or extended sources provided very promising results, 19,[43][44][45][46][47] indicating advantageous performance compared to the SH-WFS also in these settings.…”
Section: Pyramid Sensor Features Applications and Modern Challengesmentioning
confidence: 99%
“…40 Here, the pyramid sensor will measure the wavefront errors coming from both the atmospheric turbulence and telescope aberrations, including the differential segment piston errors and NCPA. 39,40 On the TMT, the PWFS is planned in the NGS SCAO mode 19 and as truth sensor in multiconjugate AO (MCAO) mode on the first light AO system NFIRAOS, 41 as well as in the XAO mode for the Planet Formation Instrument. 42 While currently PWFS are mainly applied or planned to be applied with NGS, theoretical analysis, numerical simulations, and on-sky demonstrations of its behavior with Laser Guide Stars or extended sources provided very promising results, 19,[43][44][45][46][47] indicating advantageous performance compared to the SH-WFS also in these settings.…”
Section: Pyramid Sensor Features Applications and Modern Challengesmentioning
confidence: 99%
“…We refer the reader to the literature [1][2][3] for detailed descriptions of PWFS. Here we briefly summarize how it works.…”
Section: Pyramid Wavefront Sensormentioning
confidence: 99%
“…• Performed a NGS WFS trade study to select whether to use two Shack Hartmann WFSs or a Pyramid WFS for order NGS wavefront sensing (for NGS AO, potentially including high-contrast imaging) and Truth wavefront sensing to calibrate the LGS WFS for changes in the sodium layer profile (for LGS AO only) [6], [7] . o The opto-mechanical design of the Pyramid WFS is simpler than the Shack Hartmann WFS design.…”
Section: Narrow Field Ir Adaptive Optics System (Nfiraos)mentioning
confidence: 99%