Cassiopée, towards technological development for XAO on ELT: the e-APD infrared detector
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910467848404992 |
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| author | Gach, Jean-Luc Bruno, Piero Charton, Julien Feautrier, Philippe Fusco, Thierry Neichel, Benoit Sauvage, Jean-François |
| author_facet | Gach, Jean-Luc Bruno, Piero Charton, Julien Feautrier, Philippe Fusco, Thierry Neichel, Benoit Sauvage, Jean-François |
| contents | The Cassiopée project aims to develop the key technologies that will be used to deploy very high-performance Adaptive Optics for future ELTs. The ultimate challenge is to detect earth-like planets and characterize the composition of their atmosphere. For this, imaging contrasts of the order of 109 are required, implying a leap forward in adaptive optics performance, with high density deformable mirrors (120x120 actuators), low-noise cameras and the control of the loop at few kHz. The project brings together 2 industrial partners: First Light Imaging and ALPAO, and 2 academic partners: ONERA and LAM, who will work together to develop a new camera for wavefront sensing, a new deformable mirror and their implementation in an adaptive optics loop. This paper will present the development of the fast large infrared e-APD camera which will be used in the wavefront sensor of the system. The camera will integrate the latest 512x512 Leonardo e-APD array and will benefit from the heritage of the first-light imaging's C-RED One camera. The most important challenges for the application are the autonomous operation, vibration control, background limitation, compactness, acquisition speed and latency. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2406_00547 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Cassiopée, towards technological development for XAO on ELT: the e-APD infrared detector Gach, Jean-Luc Bruno, Piero Charton, Julien Feautrier, Philippe Fusco, Thierry Neichel, Benoit Sauvage, Jean-François Instrumentation and Methods for Astrophysics The Cassiopée project aims to develop the key technologies that will be used to deploy very high-performance Adaptive Optics for future ELTs. The ultimate challenge is to detect earth-like planets and characterize the composition of their atmosphere. For this, imaging contrasts of the order of 109 are required, implying a leap forward in adaptive optics performance, with high density deformable mirrors (120x120 actuators), low-noise cameras and the control of the loop at few kHz. The project brings together 2 industrial partners: First Light Imaging and ALPAO, and 2 academic partners: ONERA and LAM, who will work together to develop a new camera for wavefront sensing, a new deformable mirror and their implementation in an adaptive optics loop. This paper will present the development of the fast large infrared e-APD camera which will be used in the wavefront sensor of the system. The camera will integrate the latest 512x512 Leonardo e-APD array and will benefit from the heritage of the first-light imaging's C-RED One camera. The most important challenges for the application are the autonomous operation, vibration control, background limitation, compactness, acquisition speed and latency. |
| title | Cassiopée, towards technological development for XAO on ELT: the e-APD infrared detector |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2406.00547 |