PEEPSS: Photonic-Enabled ExoPlanet Spectroscopic Sensor for the Habitable Worlds Observatory
Genevieve Markees, Stephen S. Eikenberry, Rodrigo Amezcua-Correa, Miguel Bandres, Rebecca Jensen-Clem, Sergio Leon-Saval, Laurent Pueyo, Rapha\"el Pourcelot

TL;DR
PEEPSS is a photonic sensor system designed to improve wavefront control and exoplanet detection in the Habitable Worlds Observatory by using photonic lanterns for efficient light coupling and wavefront sensing in the NIR band.
Contribution
The paper introduces PEEPSS, a novel photonic sensor system that integrates wavefront sensing and science channels using photonic lanterns for exoplanet observation.
Findings
Simulations show PEEPSS can effectively couple light into single-mode fibers.
PEEPSS enables smaller inner working angles in NIR coronagraphy.
The system reduces non-common-path errors in wavefront sensing.
Abstract
The next few years will be critical for technology development for Habitable Worlds Observatory (HWO) in its mission to search for and characterize extrasolar planets. To achieve its stated goals with contrasts of one part in ten billion, HWO will require outstanding stability and precision, particularly in measuring and controlling the wavefront of the light propagate through the telescope and coronagraph system. We present simulations for the Photonic-Enabled ExoPlanet Spectroscopic Sensor (PEEPSS), which uses a set of photonic lanterns to efficiently couple light from the "dark hole" in the coronograph focal plane (where the exoplanets are expected to lie) into single-mode fibers and the main spectrograph. PEEPSS uses rejected host star light from the region interior to the dark hole to aid in the wavefront sensing; this has the advantage of doing the sensing in the coronograph focal…
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