Mr. Jonathan Lin Profile

Jonathan Lin

at Univ of California Los Angeles

SPIE Involvement:

Author

Publications (22)

SPIE Journal Paper | 21 November 2024

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

Yoo Jung Kim, Michael P. Fitzgerald, Jonathan Lin, Julien Lozi, Sébastien Vievard, Yinzi Xin, Daniel Levinstein, Nemanja Jovanovic, Sergio Leon-Saval, Christopher Betters, Olivier Guyon, Barnaby Norris, Steph Sallum

JATIS, Vol. 10, Issue 04, 045004, (November 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.4.045004

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SPIE Journal Paper | 8 October 2024

On the potential of spectroastrometry with photonic lanterns

Yoo Jung Kim, Michael Fitzgerald, Jonathan Lin, Yinzi Xin, Daniel Levinstein, Steph Sallum, Nemanja Jovanovic, Sergio Leon-Saval

JATIS, Vol. 10, Issue 04, 045001, (October 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.4.045001

KEYWORDS: Matrices, Single mode fibers, Stars, Signal detection, Signal intensity, Spectrometers, Spectral response, Monochromatic aberrations, Colorimetry, Telescopes

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Proceedings Article | 16 September 2024 Poster + Paper

Identifying embedded accreting protoplanets at and within the diffraction limit using photonic lantern spectro-astrometry

Daniel Levinstein, Stephanie Sallum, Yoo Jung Kim, Jonathan Lin, Nemanja Jovanovic, Michael Fitzgerald, Yinzi Xin, Olivier Guyon, Barnaby Norris, Christopher Betters, Sergio Leon-Saval, Vincent Deo, Julien Lozi, Sébastien Vievard, Kyohoon Ahn

Proceedings Volume 13095, 130952M (2024) https://doi.org/10.1117/12.3019296

KEYWORDS: Planets, Stars, Monte Carlo methods, Diffraction limit, Protactinium, Adaptive optics, Observational astronomy, Telescopes, Electric fields, Solar system

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Proceedings Article | 28 August 2024 Presentation + Paper

Wavefront sensing and control for a photonic lantern nuller for exoplanet characterization

Yinzi Xin, Daniel Echeverri, Nemanja Jovanovic, Dimitri Mawet, Sergio Leon-Saval, Rodrigo Amezcua-Correa, Stephanos Yerolatsitis, Michael Fitzgerald, Pradip Gatkine, Yoo Jung Kim, Jonathan Lin, Barnaby Norris, Garreth Ruane, Steph Sallum

Proceedings Volume 13095, 130950S (2024) https://doi.org/10.1117/12.3019168

KEYWORDS: Wavefronts, Planets, Exoplanets, Electric fields, Nulling interferometry, Wavefront sensors

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Proceedings Article | 28 August 2024 Presentation + Paper

Spectral characterization of 3-port photonic lantern for spectroastrometry

Yoo Jung Kim, Michael Fitzgerald, Jonathan Lin, Julien Lozi, Sebastien Vievard, Nemanja Jovanovic, Sergio Leon-Saval, Kyohoon Ahn, Christopher Betters, Vincent Deo, Pradip Gatkine, Olivier Guyon, Manon Lallement, Daniel Levinstein, Dimitri Mawet, Barnaby Norris, Steph Sallum, Yinzi Xin

Proceedings Volume 13095, 130950T (2024) https://doi.org/10.1117/12.3019017

KEYWORDS: Photonics, High angular resolution imaging, Astronomical spectroscopy, Optical fibers, Single mode fibers, Telescopes, Spectral response, Spatial resolution, Calibration, Analytic models, Spectral resolution, Point spread functions, Turbulence

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Proceedings Article | 28 August 2024 Presentation

Wavefront control with spectrally dispersed photonic lanterns

Jonathan Lin, Michael Fitzgerald, Yoo Jung Kim, Daniel Levinstein, Yinzi Xin, Kyohoon Ahn, Christopher Betters, Vincent Deo, Olivier Guyon, Sergio Leon-Saval, Julien Lozi, Sébastien Vievard, Steph Sallum, Nemanja Jovanovic

Proceedings Volume 13097, 130971D (2024) https://doi.org/10.1117/12.3019308

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Proceedings Article | 27 August 2024 Presentation + Paper

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

Barnaby R. Norris, Sergio Leon-Saval, Jin Wei, Christopher Betters, Adam Taras, Jonathan Lin, Yinzi Xin, Yoo Jung Kim, Michael Fitzgerald, Steph Sallum, Aditya Sengupta, Pradip Gatkine, Nemanja Jovanovic, Dimitri Mawet, Julien Lozi, Sebastian Vievard, Vincent Deo, Manon Lallement, Daniel Levinstein, Olivier Guyon

Proceedings Volume 13097, 130971I (2024) https://doi.org/10.1117/12.3019643

KEYWORDS: Wavefront sensors, Single mode fibers, Reconstruction algorithms, Point spread functions, Wavefront reconstruction, Telescopes, Wavefronts, Image restoration, Diffraction limit, Adaptive optics

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Proceedings Article | 18 July 2024 Presentation + Paper

Visible photonic lantern integration, characterization, and on-sky testing on Subaru/SCExAO

S. Vievard, M. Lallement, S. Leon-Saval, O. Guyon, N. Jovanovic, E. Huby, S. Lacour, J. Lozi, V. Deo, K. Ahn, M. Lucas, T. Currie, S. Sallum, M. Fitzgerald, C. Betters, B. Norris, R. Amezcua-Correa, S. Yerolatsitis, J. Lin, Y. Kim, P. Gatkine, T. Kotani, M. Tamura, G. Martin, H. Kenchington Goldsmith, G. Perrin

Proceedings Volume 13096, 130960P (2024) https://doi.org/10.1117/12.3018031

KEYWORDS: Single mode fibers, Telescopes, Visible radiation, Spectroscopes, Spectrographs, Calibration, Equipment, Spatial resolution, Imaging spectroscopy, Adaptive optics

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Proceedings Article | 18 July 2024 Presentation + Paper

Fiber-fed high-resolution infrared spectroscopy at the diffraction limit with Keck-HISPEC and TMT-MODHIS: status update

Dimitri Mawet, Michael Fitzgerald, Quinn Konopacky, Nemanja Jovanovic, Ashley Baker, David Andersen, Etienne Artigau, John Bailey, Charles Beichman, Björn Benneke, Rob Bertz, Christopher Betters, David Brearly, Aaron Brown, James Brugger, Richard Dekany, Jocelyn Ferrara, Alberto Franco, Jason Fucik, Rose Gibson, Tim Greffe, Samuel Halverson, Christopher Johnson, Marc Kassis, Takayuki Kotani, Yoo Jung Kim, Stephanie Leifer, Sergio Leon-Saval, Jonathan Lin, Larry Lingvay, Jerome Maire, Eduardo Marin, Kenneth Magnone, Don Neill, Rishi Pahuja, Garreth Ruane, Greg Sercel, Svarun Soda, Ji Man Sohn, Jonathan Steiner, Motohide Tamura, Jim Thorne, Eric Wang, Truman Wold, Ray Zarzaca

Proceedings Volume 13096, 130960W (2024) https://doi.org/10.1117/12.3019238

KEYWORDS: Spectrographs, Exoplanets, Equipment, Design, Planets, Spectral resolution, Single mode fibers, Infrared spectroscopy, Adaptive optics, Telescopes

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Proceedings Article | 18 July 2024 Poster + Paper

Overview and status of the fiber delivery subsystem (FIB) of Keck/HISPEC, the diffraction-limited y-K band spectrograph for exoplanet characterization

Nemanja Jovanovic, Greg Sercel, Takayuki Kotani, John Bailey, Ashley Baker, Svarun Soda, Aoi Takahashi, Jonathan Lin, Yoo Jung Kim, Michael Fitzgerald, Sebastien Vievard, Chris Betters, Sergio Leon-Saval, Jocelyn Ferrara, Truman Wold, Jonathan Steiner, Jim Thorne, Marc Kassis, Motohide Tamura, Dimitri Mawet

Proceedings Volume 13096, 130966I (2024) https://doi.org/10.1117/12.3020499

KEYWORDS: Single mode fibers, Switches, Switching, Calibration, Microelectromechanical systems, Optical switching, Spectrographs

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SPIE Journal Paper | 4 April 2024

Laboratory demonstration of a Photonic Lantern Nuller in monochromatic and broadband light

JATIS, Vol. 10, Issue 02, 025001, (April 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.2.025001

KEYWORDS: Polarization, Single mode fibers, Nulling interferometry, Wavefronts, Simulations, Planets, Mode shapes, Exoplanets, Wavefront errors, Light sources

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Proceedings Article | 6 October 2023 Presentation

Demonstration of linear and neural net closed-loop control with a photonic lantern focal-plane wavefront sensor

Jonathan Lin, Barnaby Norris, Olivier Guyon, Michael Fitzgerald, Yinzi Xin, Yoo Jung Kim, Sébastien Vievard, Julien Lozi, Sergio Leon-Saval, Christopher Betters, Steph Sallum, Pradip Gatkine, Dimitri Mawet, Nemanja Jovanovic

Proceedings Volume 12680, 126800L (2023) https://doi.org/10.1117/12.2677057

KEYWORDS: Wavefront sensors, Wavefront aberrations, Pupil aberrations, Adaptive optics, Neural networks, Equipment, Wavefront errors, Waveguides, Wavefront reconstruction, Telescopes

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Proceedings Article | 5 October 2023 Presentation + Paper

Laboratory characterization of a mode-selective photonic lantern for exoplanet characterization

Proceedings Volume 12680, 126800I (2023) https://doi.org/10.1117/12.2676421

KEYWORDS: Single mode fibers, Polarization, Exoplanets, Polarizers, Wavefronts, Planets, Nulling interferometry, Photodiodes, Light sources, Holograms

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Proceedings Article | 5 October 2023 Presentation + Paper

The path to detecting extraterrestrial life with astrophotonics

Nemanja Jovanovic, Yinzi Xin, Michael Fitzgerald, Olivier Guyon, Peter Tuthill, Barnaby Norris, Pradip Gatkine, Greg Sercel, Svarun Soda, Yoo Jung Kim, Jonathan Lin, Sergio Leon-Saval, Rodrigo Amezcua-Correa, Stephanos Yerolatsitis, Julien Lozi, Sébastien Vievard, Chris Betters, Steph Sallum, Daniel Levinstein, Dimitri Mawet, Jeffrey Jewell, J. Kent Wallace, Nick Cvetojevic

Proceedings Volume 12680, 126800G (2023) https://doi.org/10.1117/12.2677951

KEYWORDS: Planets, Photonics, Stars, Exoplanets, Equipment, Astrophotonics, Wavefront sensors, Single mode fibers, Coronagraphy, Spectroscopy

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Proceedings Article | 5 October 2023 Presentation + Paper

Photonic spectro-interferometry with SCExAO/FIRST at the Subaru Telescope: towards Hα imaging of protoplanets

S. Vievard, M. Lallement, E. Huby, S. Lacour, O. Guyon, N. Jovanovic, S. Leon-Saval, J. Lozi, V. Deo, K. Ahn, N. Cvetojevic, K. Barjot, G. Martin, H. D. Kenchington-Goldsmith, G. Duchêne, T. Kotani, F. Marchis, D. Rouan, M. Fitzgerald, S. Sallum, B. Norris, C. Betters, P. Gatkine, J. Lin, Y. J. Kim, C. Pham, C. Cassagnettes, A. Billat, M. Tamura, G. Perrin

Proceedings Volume 12680, 126800H (2023) https://doi.org/10.1117/12.2676319

KEYWORDS: Telescopes, Single mode fibers, Optical path differences, Spectrographs, Photonic integrated circuits, Polarization, Microelectromechanical systems, Calibration, Visible radiation

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Proceedings Article | 5 October 2023 Paper

Exploring the potential of coherent imaging using photonic lanterns with beam combiners

Yoo Jung Kim, Michael Fitzgerald, Jonathan Lin, Steph Sallum, Yinzi Xin, Nemanja Jovanovic, Sergio Leon-Saval, Christopher Betters, Pradip Gatkine, Olivier Guyon, Julien Lozi, Dimitri Mawet, Barnaby Norris, Sebastien Vievard

Proceedings Volume 12680, 126800K (2023) https://doi.org/10.1117/12.2677054

KEYWORDS: Visibility, Single mode fibers, Interferometry, Beam combiners, Telescopes, Image restoration, Stellar interferometry, Coherence imaging

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Proceedings Article | 5 October 2023 Presentation + Paper

Spectro-astrometry of embedded accreting protoplanets using photonic lanterns

Daniel Levinstein, Stephanie Sallum, Yoo Jung Kim, Jonathan Lin, Julien Lozi, Nemanja Jovanovic, Michael Fitzgerald, Sébastien Vievard

Proceedings Volume 12680, 126800J (2023) https://doi.org/10.1117/12.2676882

KEYWORDS: Signal detection, Simulations, Planets, Scattered light, Exoplanets

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Proceedings Article | 30 August 2022 Presentation + Paper

Exoplanet detection with photonic lanterns for focal-plane wavefront sensing and control

Jonathan Lin, Yinzi Xin, Barnaby Norris, Yoo Jung Kim, Steph Sallum, Christopher Betters, Sergio Leon-Saval, Julien Lozi, Sebastian Vievard, Oliver Guyon, Pradip Gatkine, Nemanja Jovanovic, Dimitri Mawet, Michael Fitzgerald

Proceedings Volume 12185, 121852G (2022) https://doi.org/10.1117/12.2630692

KEYWORDS: Wavefront sensors, Wavefronts, Single mode fibers, Mathematical modeling, Telescopes, Photodetectors, Wavefront reconstruction, Wavefront aberrations, Monochromatic aberrations, Exoplanets

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Proceedings Article | 30 August 2022 Presentation + Paper

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

Barnaby R. Norris, Jin Wei, Christopher Betters, Sergio Leon-Saval, Yinzi Xin, Jonathan Lin, Yoo Jung Kim, Steph Sallum, Julien Lozi, Sebastien Vievard, Olivier Guyon, Pradip Gatkine, Nemanja Jovanovic, Dimitri Mawet, Michael Fitzgerald

Proceedings Volume 12185, 1218530 (2022) https://doi.org/10.1117/12.2629852

KEYWORDS: Wavefronts, Wavefront sensors, Adaptive optics, Point spread functions, Photodetectors, Phase measurement, Multimode fibers, Telescopes, Fiber optics sensors, Astronomy

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Proceedings Article | 29 August 2022 Presentation + Paper

Experimental measurements of AO-fed photonic lantern coupling efficiencies

Jonathan Lin, Sebastian Vievard, Nemanja Jovanovic, Barnaby Norris, Michael P. Fitzgerald, Christopher Betters, Pradip Gatkine, Olivier Guyon, Yoo Jung Kim, Sergio Leon-Saval, Julien Lozi, Dimitri Mawet, Steph Sallum, Yinzi Xin

Proceedings Volume 12188, 121882E (2022) https://doi.org/10.1117/12.2630608

KEYWORDS: Single mode fibers, Point spread functions, Telescopes, Power meters, Physics, Device simulation, Spectrographs, Near infrared, Turbulence, Sensors

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Proceedings Article | 29 August 2022 Poster + Paper

Spectroastrometry with photonic lanterns

Yoo Jung Kim, Stephanie Sallum, Jonathan Lin, Yinzi Xin, Barnaby Norris, Christopher Betters, Sergio Leon-Saval, Julien Lozi, Sebastian Vievard, Pradip Gatkine, Olivier Guyon, Nemanja Jovanovic, Dimitri Mawet, Michael Fitzgerald

Proceedings Volume 12184, 1218449 (2022) https://doi.org/10.1117/12.2630635

KEYWORDS: Binary data, Single mode fibers, Planets, Monochromatic aberrations, Wavefronts, Telescopes, Spectroscopy, Photodetectors, Photonics, Astronomical spectroscopy, Astronomical detectors, Waveguides

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Proceedings Article | 1 September 2021 Paper

Design considerations of photonic lanterns for diffraction-limited spectrometry

Jonathan Lin, Nemanja Jovanovic, Michael Fitzgerald

Proceedings Volume 11823, 118230B (2021) https://doi.org/10.1117/12.2594923

KEYWORDS: Single mode fibers, Signal to noise ratio, Point spread functions, Signal attenuation, Waveguides, Sensors, Light wave propagation, Turbulence, Atmospheric propagation, Cladding

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The coupling of large telescopes to astronomical instruments has historically been challenging due to the tension between instrument throughput and stability. Light from the telescope can either be injected wholesale into the instrument, maintaining high throughput at the cost of point-spread function (PSF) stability, or the time-varying components of the light can be filtered out with single-mode fibers (SMFs), maintaining instrument stability at the cost of light loss. Today, the field of astrophotonics provides a potential resolution to the throughput- stability tension in the form of the photonic lantern (PL): a tapered waveguide which can couple a time-varying and aberrated PSF into multiple diffraction-limited beams at an efficiency that greatly surpasses direct SMF injection. As a result, lantern-fed instruments retain the stability of SMF-fed instruments while increasing their throughput. To this end, we present a series of numerical simulations characterizing PL performance as a function of lantern geometry, wavelength, and wavefront error (WFE), aimed at guiding the design of future diffraction-limited spectrometers. These characterizations include a first look at the interaction between PLs and phase-induced amplitude apodization (PIAA) optics. We find that Gaussian-mapping beam-shaping optics can enhance coupling into 3-port lanterns but offer diminishing gains with larger lanterns. In the y- and J - band (0.97–1.35 µm) region, with moderately high WFE (∼ 10% Strehl ratio), a 3-port lantern in conjunction with beam-shaping optics strikes a good balance between pixel count and throughput gains. If pixels are not a constraint, and the flux in each port will be dominated by photon noise, then larger port count lanterns will provide further coupling gains due to a greater resilience to tip-tilt errors. Finally, we show that lanterns can maintain high operating efficiencies over large wavelength bands where the number of guided modes at the lantern entrance drops, if care is taken to minimize the attenuation of weakly radiative input modes.

Showing 5 of 22 publications

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