The GPU-based High-order adaptive OpticS Testbench
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866912111162032128 |
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| author | Engler, Byron Kasper, Markus Leveratto, Serban Heritier, Cedric Taissir Bristow, Paul Verinaud, Christophe Louarn, Miska Le Nousiainen, Jalo Helin, Tapio Bonse, Markus Quanz, Sascha Glauser, Adrian Bernard, Julien Gratadour, Damien Clare, Richard |
| author_facet | Engler, Byron Kasper, Markus Leveratto, Serban Heritier, Cedric Taissir Bristow, Paul Verinaud, Christophe Louarn, Miska Le Nousiainen, Jalo Helin, Tapio Bonse, Markus Quanz, Sascha Glauser, Adrian Bernard, Julien Gratadour, Damien Clare, Richard |
| contents | The GPU-based High-order adaptive OpticS Testbench (GHOST) at the European Southern Observatory (ESO) is a new 2-stage extreme adaptive optics (XAO) testbench at ESO. The GHOST is designed to investigate and evaluate new control methods (machine learning, predictive control) for XAO which will be required for instruments such as the Planetary Camera and Spectrograph of ESOs Extremely Large Telescope. The first stage corrections are performed in simulation, with the residual wavefront error at each iteration saved. The residual wavefront errors from the first stage are then injected into the GHOST using a spatial light modulator. The second stage correction is made with a Boston Michromachines Corporation 492 actuator deformable mirror and a pyramid wavefront sensor. The flexibility of the bench also opens it up to other applications, one such application is investigating the flip-flop modulation method for the pyramid wavefront sensor. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_05408 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The GPU-based High-order adaptive OpticS Testbench Engler, Byron Kasper, Markus Leveratto, Serban Heritier, Cedric Taissir Bristow, Paul Verinaud, Christophe Louarn, Miska Le Nousiainen, Jalo Helin, Tapio Bonse, Markus Quanz, Sascha Glauser, Adrian Bernard, Julien Gratadour, Damien Clare, Richard Instrumentation and Methods for Astrophysics The GPU-based High-order adaptive OpticS Testbench (GHOST) at the European Southern Observatory (ESO) is a new 2-stage extreme adaptive optics (XAO) testbench at ESO. The GHOST is designed to investigate and evaluate new control methods (machine learning, predictive control) for XAO which will be required for instruments such as the Planetary Camera and Spectrograph of ESOs Extremely Large Telescope. The first stage corrections are performed in simulation, with the residual wavefront error at each iteration saved. The residual wavefront errors from the first stage are then injected into the GHOST using a spatial light modulator. The second stage correction is made with a Boston Michromachines Corporation 492 actuator deformable mirror and a pyramid wavefront sensor. The flexibility of the bench also opens it up to other applications, one such application is investigating the flip-flop modulation method for the pyramid wavefront sensor. |
| title | The GPU-based High-order adaptive OpticS Testbench |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2411.05408 |