Kavli Affiliate: Bruce Macintosh
| First 5 Authors: Aditya R. Sengupta, Aditya R. Sengupta, , ,
| Summary:
Photonic lanterns (PLs) are fiber-based waveguides that are capable of
focal-plane wavefront sensing while simultaneously directing light to
downstream science instruments. The optimal choice of wavefront reconstruction
algorithm has yet to be determined, and likely depends on the particular
observing scenario under consideration. Previous work in simulation suggests
that PLs can be used for nonlinear wavefront sensing for several applications,
including sensing the low-wind effect and correcting large-amplitude
aberrations. We present the design of muirSEAL (miniature IR SEAL), a testbed
designed to test PL wavefront reconstruction over Zernike modes and
segmented-mirror offsets. We demonstrate throughput and linear wavefront
reconstruction at multiple f-numbers. We further present initial laboratory
imaging of a new photonic lantern fabricated at Lawrence Livermore National
Laboratory.
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