52 citations · 275 across the 60 of their papers we have counts for
9 papers · 1 filter
Real-time experimental demonstrations of a photonic lantern wavefront sensor
Jonathan W. Lin, Michael P. Fitzgerald, Yinzi Xin +12
The direct imaging of an Earth-like exoplanet will require sub-nanometric wavefront control across large light-collecting apertures, to reject host starlight and detect the faint p…
Spectroastrometry and Imaging Science with Photonic Lanterns on Extremely Large Telescopes
Yoo Jung Kim, Michael P. Fitzgerald, Jonathan Lin +11
Photonic lanterns (PLs) are tapered waveguides that gradually transition from a multi-mode fiber geometry to a bundle of single-mode fibers. In astronomical applications, PLs can e…
Nonlinear wavefront reconstruction from a pyramid sensor using neural networks
Alison P. Wong, Barnaby R. M. Norris, Vincent Deo +7
The pyramid wavefront sensor (PyWFS) has become increasingly popular to use in adaptive optics (AO) systems due to its high sensitivity. The main drawback of the PyWFS is that it i…
Focal-plane wavefront sensing with photonic lanterns II: numerical characterization and optimization
Jonathan Lin, Michael P. Fitzgerald, Yinzi Xin +5
We present numerical characterizations of the wavefront sensing performance for few-mode photonic lantern wavefront sensors (PLWFSs). These characterizations include calculations o…
Reaching the fundamental sensitivity limit of wavefront sensing on arbitrary apertures with the Phase Induced Amplitude Apodized Zernike Wavefront Sensor (PIAA-ZWFS)
Sebastiaan Y. Haffert, Jared R. Males, Olivier Guyon
In the last two decades many people have been searching for the optimal wavefront sensor as it can boost the performance of high-contrast imagining by orders of magnitude on the EL…
GMagAO-X: A First Light Coronagraphic Adaptive Optics System for the GMT
Maggie Kautz, Jared R. Males, Laird M. Close +17
GMagAO-X is a visible to NIR extreme adaptive optics (ExAO) system that will be used at first light for the Giant Magellan Telescope (GMT). GMagAO-X is designed to deliver diffract…
Experimental demonstration of spectral linear dark field control at NASA's high contrast imaging testbeds
Phillip K. Poon, Axel Potier, Garreth Ruane +6
Due to the low flux of exoEarths, long exposure times are required to spectrally characterize them. During these long exposures, the contrast in the dark hole will degrade as the t…
The MAPS Adaptive Secondary Mirror: First Light, Laboratory Work, and Achievements
Jess A. Johnson, Amali Vaz, Manny Montoya +23
The MMT Adaptive Optics exoPlanet Characterization System (MAPS) is a comprehensive update to the first generation MMT adaptive optics system (MMTAO), designed to produce a facilit…
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…