Machine learning for wavefront sensing

AP Wong, BRM Norris, V Deo, O Guyon… - … Optics Systems VIII, 2022 - spiedigitallibrary.org
Advances in the field of deep learning have motivated a flurry of research into the
application of neural networks to wavefront sensing for adaptive optics. This paper gives an …

All-fibre wavefront sensor

TA Wright, S Yerolatsitis, K Harrington… - Monthly Notices of …, 2022 - academic.oup.com
We report on a tapered three-core optical fibre that can be used as a tip–tilt wavefront
sensor. In this device, a coupled region of a few millimetres at the sensing tip of the fibre …

Optimal broadband starlight injection into a single-mode fibre with integrated photonic wavefront sensing

B Norris, C Betters, J Wei, S Yerolatsitis… - Optics …, 2022 - opg.optica.org
In astronomy and related fields there is a pressing need to efficiently inject light, transmitted
through the atmosphere, into a single-mode fibre. However this is extremely difficult due to …

Free-standing microscale photonic lantern spatial mode (De-) multiplexer fabricated using 3D nanoprinting

Y Dana, Y Garcia, A Kukin, L Dallachiesa… - Light: Science & …, 2024 - nature.com
Photonic lantern (PL) spatial multiplexers show great promise for a range of applications,
such as future high-capacity mode division multiplexing (MDM) optical communication …

Demonstration of a photonic-lantern focal-plane wavefront sensor using fiber mode conversion and deep learning

BRM Norris, J Wei, CH Betters… - … Optics Systems VIII, 2022 - spiedigitallibrary.org
A focal plane wavefront sensor offers major advantages to adaptive optics, including
removal of non-commonpath error and providing sensitivity to blind modes (such as …

Spectral characterization of a three-port photonic lantern for application to spectroastrometry

YJ Kim, MP Fitzgerald, J Lin, J Lozi… - Journal of …, 2024 - spiedigitallibrary.org
Spectroastrometry, which measures wavelength-dependent shifts in the center of light, is
well-suited for studying objects whose morphology changes with wavelength at very high …

[PDF][PDF] 光子灯笼技术及在天文中的应用(特邀)

韩子健, 袁祥岩 - ACTA PHOTONICA SINICA, 2023 - researching.cn
天文观测仪器的蓬勃发展推动了对小体积, 低成本, 高效率的新一代仪器的研究工作. 近年来,
集成光学元件的发展为天文技术与方法带来了新机遇, 天文光子学应运而生 …

Spectral characterization of a 3-port photonic lantern for application to spectroastrometry

YJ Kim, MP Fitzgerald, J Lin, J Lozi, S Vievard… - arXiv preprint arXiv …, 2024 - arxiv.org
Spectroastrometry, which measures wavelength-dependent shifts in the center of light, is
well-suited for studying objects whose morphology changes with wavelength at very high …

Photonic lantern based real-time modal instability diagnostic tool for high power fiber lasers

MA Cooper, S Yerolastsitis… - Fiber Lasers XX …, 2023 - spiedigitallibrary.org
We demonstrate a fast and versatile approach to analyze the modal content of a high power
fiber amplifier using a low-loss photonic lantern. By monitoring the first three modes of the …

Mitigation of atmospheric turbulence effects on optical links by integrated optics

L Rinaldi - 2022 - theses.hal.science
The growth of optical links in free space leads to systems with data rates of tens of gigabits/s.
To reach such data rates, one of the most frequently considered approaches is to couple the …