Shaped pupil coronagraphy for WFIRST: High-contrast broadband testbed demonstration

Eric Cady; Kunjithapatham Balasubramanian; Jessica Gersh-Range; Jeremy Kasdin; Brian Kern; Raymond Lam; Camilo Mejia Prada; Dwight Moody; Keith Patterson; Ilya Poberezhskiy; A. J.Eldorado Riggs; Byoung Joon Seo; Fang Shi; Hong Tang; John Trauger; Hanying Zhou; Neil Zimmerman

doi:10.1117/12.2272834

Shaped pupil coronagraphy for WFIRST: High-contrast broadband testbed demonstration

Eric Cady, Kunjithapatham Balasubramanian, Jessica Gersh-Range, Jeremy Kasdin, Brian Kern, Raymond Lam, Camilo Mejia Prada, Dwight Moody, Keith Patterson, Ilya Poberezhskiy, A. J.Eldorado Riggs, Byoung Joon Seo, Fang Shi, Hong Tang, John Trauger, Hanying Zhou, Neil Zimmerman

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

23 Scopus citations

Abstract

The Shaped Pupil Coronagraph (SPC) is one of the two operating modes of the WFIRST coronagraph instrument. The SPC provides starlight suppression in a pair of wedge-shaped regions over an 18% bandpass, and is well suited for spectroscopy of known exoplanets. To demonstrate this starlight suppression in the presence of expected onorbit input wavefront disturbances, we have recently built a dynamic testbed at JPL analogous to the WFIRST flight instrument architecture, with both Hybrid Lyot Coronagraph (HLC) and SPC architectures and a Low Order Wavefront Sensing and Control (LOWFS/C) subsystem to apply, sense, and correct dynamic wavefront disturbances. We present our best up-to-date results of the SPC mode demonstration from the testbed, in both static and dynamic conditions, along with model comparisons. HLC results will be reported separately.

Original language	English (US)
Title of host publication	Techniques and Instrumentation for Detection of Exoplanets VIII
Editors	Stuart Shaklan
Publisher	SPIE
ISBN (Electronic)	9781510612570
DOIs	https://doi.org/10.1117/12.2272834
State	Published - 2017
Event	Techniques and Instrumentation for Detection of Exoplanets VIII 2017 - San Diego, United States Duration: Aug 8 2017 → Aug 10 2017

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10400
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Techniques and Instrumentation for Detection of Exoplanets VIII 2017
Country/Territory	United States
City	San Diego
Period	8/8/17 → 8/10/17

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.2272834

Cite this

Cady, E., Balasubramanian, K., Gersh-Range, J., Kasdin, J., Kern, B., Lam, R., Mejia Prada, C., Moody, D., Patterson, K., Poberezhskiy, I., Riggs, A. J. E., Seo, B. J., Shi, F., Tang, H., Trauger, J., Zhou, H., & Zimmerman, N. (2017). Shaped pupil coronagraphy for WFIRST: High-contrast broadband testbed demonstration. In S. Shaklan (Ed.), Techniques and Instrumentation for Detection of Exoplanets VIII Article 104000E (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10400). SPIE. https://doi.org/10.1117/12.2272834

@inproceedings{c346ff89dcf5465cb76b02b601f69223,

title = "Shaped pupil coronagraphy for WFIRST: High-contrast broadband testbed demonstration",

abstract = "The Shaped Pupil Coronagraph (SPC) is one of the two operating modes of the WFIRST coronagraph instrument. The SPC provides starlight suppression in a pair of wedge-shaped regions over an 18% bandpass, and is well suited for spectroscopy of known exoplanets. To demonstrate this starlight suppression in the presence of expected onorbit input wavefront disturbances, we have recently built a dynamic testbed at JPL analogous to the WFIRST flight instrument architecture, with both Hybrid Lyot Coronagraph (HLC) and SPC architectures and a Low Order Wavefront Sensing and Control (LOWFS/C) subsystem to apply, sense, and correct dynamic wavefront disturbances. We present our best up-to-date results of the SPC mode demonstration from the testbed, in both static and dynamic conditions, along with model comparisons. HLC results will be reported separately.",

author = "Eric Cady and Kunjithapatham Balasubramanian and Jessica Gersh-Range and Jeremy Kasdin and Brian Kern and Raymond Lam and {Mejia Prada}, Camilo and Dwight Moody and Keith Patterson and Ilya Poberezhskiy and Riggs, {A. J.Eldorado} and Seo, {Byoung Joon} and Fang Shi and Hong Tang and John Trauger and Hanying Zhou and Neil Zimmerman",

note = "Publisher Copyright: {\textcopyright} 2017 COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; Techniques and Instrumentation for Detection of Exoplanets VIII 2017 ; Conference date: 08-08-2017 Through 10-08-2017",

year = "2017",

doi = "10.1117/12.2272834",

language = "English (US)",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

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Cady, E, Balasubramanian, K, Gersh-Range, J, Kasdin, J, Kern, B, Lam, R, Mejia Prada, C, Moody, D, Patterson, K, Poberezhskiy, I, Riggs, AJE, Seo, BJ, Shi, F, Tang, H, Trauger, J, Zhou, H & Zimmerman, N 2017, Shaped pupil coronagraphy for WFIRST: High-contrast broadband testbed demonstration. in S Shaklan (ed.), Techniques and Instrumentation for Detection of Exoplanets VIII., 104000E, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10400, SPIE, Techniques and Instrumentation for Detection of Exoplanets VIII 2017, San Diego, United States, 8/8/17. https://doi.org/10.1117/12.2272834

Shaped pupil coronagraphy for WFIRST: High-contrast broadband testbed demonstration. / Cady, Eric; Balasubramanian, Kunjithapatham; Gersh-Range, Jessica et al.
Techniques and Instrumentation for Detection of Exoplanets VIII. ed. / Stuart Shaklan. SPIE, 2017. 104000E (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10400).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Shaped pupil coronagraphy for WFIRST

T2 - Techniques and Instrumentation for Detection of Exoplanets VIII 2017

AU - Cady, Eric

AU - Balasubramanian, Kunjithapatham

AU - Gersh-Range, Jessica

AU - Kasdin, Jeremy

AU - Kern, Brian

AU - Lam, Raymond

AU - Mejia Prada, Camilo

AU - Moody, Dwight

AU - Patterson, Keith

AU - Poberezhskiy, Ilya

AU - Riggs, A. J.Eldorado

AU - Seo, Byoung Joon

AU - Shi, Fang

AU - Tang, Hong

AU - Trauger, John

AU - Zhou, Hanying

AU - Zimmerman, Neil

PY - 2017

Y1 - 2017

N2 - The Shaped Pupil Coronagraph (SPC) is one of the two operating modes of the WFIRST coronagraph instrument. The SPC provides starlight suppression in a pair of wedge-shaped regions over an 18% bandpass, and is well suited for spectroscopy of known exoplanets. To demonstrate this starlight suppression in the presence of expected onorbit input wavefront disturbances, we have recently built a dynamic testbed at JPL analogous to the WFIRST flight instrument architecture, with both Hybrid Lyot Coronagraph (HLC) and SPC architectures and a Low Order Wavefront Sensing and Control (LOWFS/C) subsystem to apply, sense, and correct dynamic wavefront disturbances. We present our best up-to-date results of the SPC mode demonstration from the testbed, in both static and dynamic conditions, along with model comparisons. HLC results will be reported separately.

AB - The Shaped Pupil Coronagraph (SPC) is one of the two operating modes of the WFIRST coronagraph instrument. The SPC provides starlight suppression in a pair of wedge-shaped regions over an 18% bandpass, and is well suited for spectroscopy of known exoplanets. To demonstrate this starlight suppression in the presence of expected onorbit input wavefront disturbances, we have recently built a dynamic testbed at JPL analogous to the WFIRST flight instrument architecture, with both Hybrid Lyot Coronagraph (HLC) and SPC architectures and a Low Order Wavefront Sensing and Control (LOWFS/C) subsystem to apply, sense, and correct dynamic wavefront disturbances. We present our best up-to-date results of the SPC mode demonstration from the testbed, in both static and dynamic conditions, along with model comparisons. HLC results will be reported separately.

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DO - 10.1117/12.2272834

M3 - Conference contribution

AN - SCOPUS:85040163307

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Techniques and Instrumentation for Detection of Exoplanets VIII

A2 - Shaklan, Stuart

PB - SPIE

Y2 - 8 August 2017 through 10 August 2017

ER -

Shaped pupil coronagraphy for WFIRST: High-contrast broadband testbed demonstration

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