2023 astrophotonics roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

N Jovanovic, P Gatkine, N Anugu… - Journal of Physics …, 2023 - iopscience.iop.org
Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

Astrophotonics-current capabilities and the road ahead

B Norris, S Gross, SG Leon-Saval, CH Betters… - Applied Optics, 2024 - opg.optica.org
Astrophotonics represents a cutting-edge approach in observational astronomy. This paper
explores the significant advancements and potential applications of astrophotonics …

Focal-plane wavefront sensing with photonic lanterns II: numerical characterization and optimization

J Lin, MP Fitzgerald, Y **n, YJ Kim, O Guyon… - arxiv preprint arxiv …, 2023 - arxiv.org
We present numerical characterizations of the wavefront sensing performance for few-mode
photonic lantern wavefront sensors (PLWFSs). These characterizations include calculations …

Spectroscopy using a visible photonic lantern at the Subaru Telescope: Laboratory characterization and the first on-sky demonstration on Ikiiki (α Leo) and 'Aua (α Ori)

S Vievard, M Lallement, S Leon-Saval… - Astronomy & …, 2024 - aanda.org
Context. Photonic lanterns (PLs) are waveguide devices enabling high-throughput single-
mode spectroscopy and high angular resolution. Aims. We aim to present the first on-sky …

The photonic lantern wavefront sensor and imager: focal plane wavefront sensing and optimal imaging at the diffraction limit and beyond

BRM Norris, SG Leon-Saval, J Wei… - … Optics Systems IX, 2024 - spiedigitallibrary.org
The use of a photonic lantern as focal plane wavefront sensor has seen recent widespread
interest–it can remove non-common-path aberrations, accurately sense low-wind-effect and …

Kernel nulling at VLTI with photonic lanterns for optimal fibre injection

AK Taras, B Norris, S Chhabra… - Optical and Infrared …, 2024 - spiedigitallibrary.org
Nulling interferometry is a promising technology to enable prospecting for and
characterising sub-stellar companions at extremely close separations and high contrasts …

[HTML][HTML] Influence of Optical Fiber Parameters on the Speckle Pattern and Spectral Observation in Astronomy

A Wang, J Wang, Z Gan, G Yue, X Chen, Q Yan… - Photonics, 2024 - mdpi.com
Optical fibers serve as a bridge to transmit starlight into the spectrograph in fiber spectral
surveys. Due to the interference between multiple modes supported within the fiber, a …

Demonstration of a photonic lantern focal-plane wavefront sensor: measurement of atmospheric wavefront error modes and low wind effect in the nonlinear regime

J Wei, B Norris, C Betters… - Journal of Astronomical …, 2024 - spiedigitallibrary.org
We present a laboratory analysis of the use of a 19-core photonic lantern (PL) in
combination with neural network (NN) algorithms as an efficient focal plane wavefront …

Photonic lantern wavefront reconstruction in a multi-wavefront sensor single-conjugate adaptive optics system

AR Sengupta, J Diaz, BL Gerard… - arxiv preprint arxiv …, 2024 - arxiv.org
Exoplanet direct imaging using adaptive optics (AO) is often limited by non-common path
aberrations (NCPAs) and aberrations that are invisible to traditional pupil-plane wavefront …

The path to detecting extraterrestrial life with astrophotonics

N Jovanovic, Y **n, MP Fitzgerald… - … for Detection of …, 2023 - spiedigitallibrary.org
Astrophysical research into exoplanets has delivered thousands of confirmed planets
orbiting distant stars. These planets span a wide range of size and composition, with …