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Astrophysics > Instrumentation and Methods for Astrophysics

arXiv:2606.27590 (astro-ph)
[Submitted on 25 Jun 2026]

Title:Laboratory characterization of a multi-photonic lantern optical waveguide using off-axis holography

Authors:Aditya R. Sengupta, Benjamin L. Gerard, Dominic Sanchez, Matthew DeMartino, Rebecca Jensen-Clem, Kevin Bundy, Michael J. Messerly, Paul Pax, Daren Dillon, Eric Strang
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Abstract:Photonic lanterns (PLs) are waveguides that convert multi-mode input light to single-mode outputs. Wavefront sensing (WFS) and spectroscopy using a PL have been demonstrated, but PL simulations and experiments show significant mismatches. For the WaveDriver project, a proposed Habitable Worlds Observatory pathfinder that uses a PL for WFS as well as for integral field spectroscopy, we manufactured an optical waveguide consisting of an array of seven 19-port PLs in one device. We present laboratory characterization of the individual PLs, consisting of measurements of the principal modes at each PL input using digital off-axis holography. We compare our mode measurements to simulations to assess the variation in the PL manufacturing process. We discuss expected WFS performance in the WaveDriver configuration.
Comments: submitted to SPIE Astronomical Telescopes and Instrumentation 2026, paper number 14150-135
Subjects: Instrumentation and Methods for Astrophysics (astro-ph.IM); Optics (physics.optics)
Cite as: arXiv:2606.27590 [astro-ph.IM]
  (or arXiv:2606.27590v1 [astro-ph.IM] for this version)
  https://doi.org/10.48550/arXiv.2606.27590

Submission history

From: Aditya Sengupta [view email]
[v1] Thu, 25 Jun 2026 22:42:44 UTC (13,580 KB)
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