50 citations · 67 across the 15 of their papers we have counts for
17 papers
A Reconfigurable Multilayer Quantum Key Distribution Network over Existing Metropolitan Fibre
Mariella Minder, Andreas Siakolas, Elizabeth Pasatembou +4
Scaling quantum networks requires architectures extending end-to-end service reachability despite constrained fibre and equipment. Critically, in brownfield deployments, the quantu…
The Photonic Lantern Nuller: from concept to laboratory and on-sky demonstrations
Yinzi Xin, Nemanja Jovanovic, Dimitri Mawet +18
This thesis work presents the conceptual design and experimental characterization of the Photonic Lantern Nuller instrument, which uses a multimode-to-single-mode demultiplexing wa…
Experimentally-determined performance limits for joint imaging and wavefront sensing with a photonic lantern
Aditya R. Sengupta, Vincent Chambouleyron, Rebecca Jensen-Clem +16
The photonic lantern (PL) is a focal-plane wavefront sensor (WFS) that can be used for second-stage control of extreme adaptive optics (AO) systems. While the number of sensed mode…
Wavelength-Dependent Evolution of Full-Field Transfer Matrices in Photonic Lanterns
Caleb Dobias, Miguel Römer, Swati Bhargava +10
A fiber-based photonic lantern can couple an array of single-mode optical fibers to the guided modes of a multimode fiber, with the mapping between the single-mode fibers and guide…
Multi-node quantum key distribution network using existing underground optical fibre infrastructure
Mariella Minder, Andreas Siakolas, Stephanos Yerolatsitis +2
Quantum key distribution (QKD) offers unconditional information security by allowing two distant users to establish a common encryption key resilient to hacking. Resultingly, QKD n…
On-sky demonstration of second-stage wavefront control with a photonic lantern
Aditya R. Sengupta, Jordan Diaz, Matthew DeMartino +14
Ground-based direct imaging of exoplanets at high contrast requires precise correction of atmospheric turbulence using adaptive optics (AO). The planet-to-star contrast ratio at sm…
On-sky Demonstration of Subdiffraction-limited Astronomical Measurement Using a Photonic Lantern
Yoo Jung Kim, Michael P. Fitzgerald, Sébastien Vievard +18
Resolving fine details of astronomical objects provides critical insights into their underlying physical processes. This drives in part the desire to construct ever-larger telescop…
Exploring the Capabilities of Astrophotonics for the Precise Alignment of Segmented Telescopes
Maria Cuevas, Aditya R. Sengupta, Vincent Chambouleyron +9
The next generation of large telescopes for direct imaging of exoplanets will require segmented primary mirrors. Over both long and short timescales, these telescopes experience se…
Experimental validation of photonic lantern imaging and wavefront sensing performance
Aditya R. Sengupta, Vincent Chambouleyron, Jordan Diaz +15
Photonic lanterns (PLs) are fiber-based waveguides that are capable of focal-plane wavefront sensing while simultaneously directing light to downstream science instruments. The opt…
Implicit Electric Field Conjugation with the Photonic Lantern Nuller
Yinzi Xin, Daniel Echeverri, Nemanja Jovanovic +12
The Photonic Lantern Nuller (PLN) is an instrument concept designed to characterize exoplanets within a single beam-width from its host star. The PLN leverages the spatial symmetry…
Spectroscopy using a visible photonic lantern at the Subaru telescope: Laboratory characterization and first on-sky demonstration on Ikiiki (α Leo) and `Aua (α Ori)
Sébastien Vievard, Manon Lallement, Sergio Leon-Saval +23
Photonic lanterns are waveguide devices enabling high throughput single mode spectroscopy and high angular resolution. We aim to present the first on-sky demonstration of a photoni…
Visible Photonic Lantern integration, characterization and on-sky testing on Subaru/SCExAO
Sébastien Vievard, Manon Lallement, Sergio Leon-Saval +23
A Photonic Lantern (PL) is a novel device that efficiently converts a multi-mode fiber into several single-mode fibers. When coupled with an extreme adaptive optics (ExAO) system a…
Laboratory demonstration of a Photonic Lantern Nuller in monochromatic and broadband light
Yinzi Xin, Daniel Echeverri, Nemanja Jovanovic +11
Photonic lantern nulling (PLN) is a method for enabling the detection and characterization of close-in exoplanets by exploiting the symmetries of the ports of a mode-selective phot…
Mitigating Modal Noise in Multimode Circular Fibres by Optical Agitation using a Galvanometer
Supriyo Ghosh, Chantira Boonsri, William Martin +6
Modal noise appears due to the non-uniform and unstable distribution of light intensity among the finite number of modes in multimode fibres. It is an important limiting factor in…
2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments
Nemanja Jovanovic, Pradip Gatkine, Narsireddy Anugu +77
Photonics offer numerous functionalities that can be used to realize astrophotonic instruments. The most spectacular example to date is the ESO Gravity instrument at the Very Large…
The path to detecting extraterrestrial life with astrophotonics
Nemanja Jovanovic, Yinzi Xin, Michael P. Fitzgerald +20
Astrophysical research into exoplanets has delivered thousands of confirmed planets orbiting distant stars. These planets span a wide ranges of size and composition, with diversity…
3D-M3: High-spatial resolution spectroscopy with extreme AO and 3D printed micro-lenslets
Theodoros Anagnos, Mareike Trappen, Blaise C. Kuo Tiong +20
By combining IFS with ExAO we are now able to resolve objects close to the diffraction-limit of large telescopes, exploring new science cases. We introduce an IFU designed to coupl…