The photonic lantern

TA Birks, I Gris-Sánchez, S Yerolatsitis… - Advances in Optics …, 2015 - opg.optica.org
Photonic lanterns are made by adiabatically merging several single-mode cores into one
multimode core. They provide low-loss interfaces between single-mode and multimode …

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: astronomy and modern optics

S Minardi, RJ Harris, L Labadie - The Astronomy and Astrophysics Review, 2021 - Springer
Much of the progress in astronomy has been driven by instrumental developments, from the
first telescopes to fiber fed spectrographs. In this review, we describe the field of …

An all-photonic focal-plane wavefront sensor

BRM Norris, J Wei, CH Betters, A Wong… - Nature …, 2020 - nature.com
Adaptive optics (AO) is critical in astronomy, optical communications and remote sensing to
deal with the rapid blurring caused by the Earth's turbulent atmosphere. But current AO …

Focal-plane wavefront sensing with photonic lanterns: theoretical framework

J Lin, MP Fitzgerald, Y **n, O Guyon, S Leon-Saval… - JOSA B, 2022 - opg.optica.org
The photonic lantern (PL) is a tapered waveguide that can efficiently couple light into
multiple single-mode optical fibers. Such devices are currently being considered for a …

Diffraction-limited integral-field spectroscopy for extreme adaptive optics systems with the multicore fiber-fed integral-field unit

SY Haffert, RJ Harris, A Zanutta, FA Pike… - Journal of …, 2020 - spiedigitallibrary.org
Direct imaging instruments have the spatial resolution to resolve exoplanets from their host
star. This enables direct characterization of the exoplanets atmosphere, but most direct …

Divide and conquer: an efficient solution to highly multimoded photonic lanterns from multicore fibres

SG Leon-Saval, CH Betters, JR Salazar-Gil, SS Min… - Optics express, 2017 - opg.optica.org
Photonic lanterns typically allow for single-mode action in a multimode fibre. Since their
invention over a decade ago for applications in astrophotonics, they have found important …

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 …

Single mode, extreme precision Doppler spectrographs

C Schwab, SG Leon-Saval, CH Betters… - Proceedings of the …, 2012 - cambridge.org
The 'holy grail'of exoplanet research today is the detection of an earth-like planet: a rocky
planet in the habitable zone around a main-sequence star. Extremely precise Doppler …

Efficient photonic reformatting of celestial light for diffraction-limited spectroscopy

DG MacLachlan, RJ Harris… - Monthly Notices of …, 2017 - academic.oup.com
The spectral resolution of a dispersive astronomical spectrograph is limited by the trade-off
between throughput and the width of the entrance slit. Photonic guided wave transitions …