Experimental and on-sky demonstration of spectrally dispersed wavefront sensing using a photonic lantern
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arXiv
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| Format: | Preprint |
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2025
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| author | Lin, Jonathan Fitzgerald, Michael P. Xin, Yinzi Kim, Yoo Jung Guyon, Olivier Norris, Barnaby Betters, Christopher Leon-Saval, Sergio Ahn, Kyohoon Deo, Vincent Lozi, Julien Vievard, Sébastien Levinstein, Daniel Sallum, Steph Jovanovic, Nemanja |
| author_facet | Lin, Jonathan Fitzgerald, Michael P. Xin, Yinzi Kim, Yoo Jung Guyon, Olivier Norris, Barnaby Betters, Christopher Leon-Saval, Sergio Ahn, Kyohoon Deo, Vincent Lozi, Julien Vievard, Sébastien Levinstein, Daniel Sallum, Steph Jovanovic, Nemanja |
| contents | Adaptive optics systems are critical in any application where highly resolved imaging or beam control must be performed through a dynamic medium. Such applications include astronomy and free-space optical communications, where light propagates through the atmosphere, as well as medical microscopy and vision science, where light propagates through biological tissue. Recent works have demonstrated common-path wavefront sensors for adaptive optics using the photonic lantern, a slowly varying waveguide that can efficiently couple multi-moded light into single-mode fibers. We use the SCExAO astrophotonics platform at the 8-m Subaru Telescope to show that spectral dispersion of lantern outputs can improve correction fidelity, culminating with an on-sky demonstration of real-time wavefront control. To our best knowledge, this is the first such result for either a spectrally dispersed or a photonic lantern wavefront sensor. Combined with the benefits offered by lanterns in precision spectroscopy, our results suggest the future possibility of a unified wavefront sensing spectrograph using compact photonic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_00765 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Experimental and on-sky demonstration of spectrally dispersed wavefront sensing using a photonic lantern Lin, Jonathan Fitzgerald, Michael P. Xin, Yinzi Kim, Yoo Jung Guyon, Olivier Norris, Barnaby Betters, Christopher Leon-Saval, Sergio Ahn, Kyohoon Deo, Vincent Lozi, Julien Vievard, Sébastien Levinstein, Daniel Sallum, Steph Jovanovic, Nemanja Instrumentation and Methods for Astrophysics Optics Adaptive optics systems are critical in any application where highly resolved imaging or beam control must be performed through a dynamic medium. Such applications include astronomy and free-space optical communications, where light propagates through the atmosphere, as well as medical microscopy and vision science, where light propagates through biological tissue. Recent works have demonstrated common-path wavefront sensors for adaptive optics using the photonic lantern, a slowly varying waveguide that can efficiently couple multi-moded light into single-mode fibers. We use the SCExAO astrophotonics platform at the 8-m Subaru Telescope to show that spectral dispersion of lantern outputs can improve correction fidelity, culminating with an on-sky demonstration of real-time wavefront control. To our best knowledge, this is the first such result for either a spectrally dispersed or a photonic lantern wavefront sensor. Combined with the benefits offered by lanterns in precision spectroscopy, our results suggest the future possibility of a unified wavefront sensing spectrograph using compact photonic devices. |
| title | Experimental and on-sky demonstration of spectrally dispersed wavefront sensing using a photonic lantern |
| topic | Instrumentation and Methods for Astrophysics Optics |
| url | https://arxiv.org/abs/2505.00765 |