WaveDriver: a Laser Guide Star AO System for HWO
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arXiv
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| Format: | Preprint |
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2025
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| author | Gerard, Benjamin L. Geringer-Sameth, Alex Sengupta, Aditya R. Perloff, Alexx Messerley, Michael Sanchez, Dominic F. Waswa, P. Moore, William Cook, Matthew Strang, Eric Pax, Paul Laguna, Cesar DeMartino, Matthew Bundy, Kevin Jensen-Clem, Rebecca Lemmer, Aaron J. Ammons, S. Mark Poyneer, Lisa Eckart, Megan |
| author_facet | Gerard, Benjamin L. Geringer-Sameth, Alex Sengupta, Aditya R. Perloff, Alexx Messerley, Michael Sanchez, Dominic F. Waswa, P. Moore, William Cook, Matthew Strang, Eric Pax, Paul Laguna, Cesar DeMartino, Matthew Bundy, Kevin Jensen-Clem, Rebecca Lemmer, Aaron J. Ammons, S. Mark Poyneer, Lisa Eckart, Megan |
| contents | HWO's Tier 1 Contrast Stability Technology Gap presents a key challenge for technology development in the coming years, requiring to a >100x more stable system than JWST. WaveDriver is a concept for a laser guide star spacecraft coupled to an adaptive optics (AO) system onboard HWO that would enable HWO to reach its picometer-level wavefront stability requirements while relaxing other HWO subsystem requirements. At LLNL and UCSC we are revisiting the concept initially proposed by Douglas et al. (2019). We present results from our project's first year, including (1) AO control developments, including with Linear Quadratic Gaussian control and machine learning, (2) AO wavefront sensor (WFS) trade study simulations, and (3) simulations, fabrication, and testing of a 133-port photonic lantern WFS/spectrograph. A key finding from our work is that WaveDriver could be needed to enable HWO's primary mirror segment stability and/or low order wavefront stability requirements. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_18643 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | WaveDriver: a Laser Guide Star AO System for HWO Gerard, Benjamin L. Geringer-Sameth, Alex Sengupta, Aditya R. Perloff, Alexx Messerley, Michael Sanchez, Dominic F. Waswa, P. Moore, William Cook, Matthew Strang, Eric Pax, Paul Laguna, Cesar DeMartino, Matthew Bundy, Kevin Jensen-Clem, Rebecca Lemmer, Aaron J. Ammons, S. Mark Poyneer, Lisa Eckart, Megan Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics HWO's Tier 1 Contrast Stability Technology Gap presents a key challenge for technology development in the coming years, requiring to a >100x more stable system than JWST. WaveDriver is a concept for a laser guide star spacecraft coupled to an adaptive optics (AO) system onboard HWO that would enable HWO to reach its picometer-level wavefront stability requirements while relaxing other HWO subsystem requirements. At LLNL and UCSC we are revisiting the concept initially proposed by Douglas et al. (2019). We present results from our project's first year, including (1) AO control developments, including with Linear Quadratic Gaussian control and machine learning, (2) AO wavefront sensor (WFS) trade study simulations, and (3) simulations, fabrication, and testing of a 133-port photonic lantern WFS/spectrograph. A key finding from our work is that WaveDriver could be needed to enable HWO's primary mirror segment stability and/or low order wavefront stability requirements. |
| title | WaveDriver: a Laser Guide Star AO System for HWO |
| topic | Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2509.18643 |