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
N1 - Funding Information:
This work was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.
Publisher Copyright:
© 2017 COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
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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U2 - 10.1117/12.2272834
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 -