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dc.contributor.authorLiberman, J.
dc.contributor.authorLlop-Sayson, J.
dc.contributor.authorBertrou-Cantou, A.
dc.contributor.authorMawet, D.
dc.contributor.authorRiggs, A.J.E.
dc.contributor.authorDesai, N.
dc.date.accessioned2024-03-22T02:47:51Z
dc.date.available2024-03-22T02:47:51Z
dc.date.issued2023-10-05
dc.identifier.citationJoshua Liberman, Jorge Llop-Sayson, Arielle Bertrou-Cantou, Dimitri Mawet, A.J. Eldorado Riggs, Niyati Desai, "Implicit electric field conjugation for improved starlight rejection through a single-mode fiber," Proc. SPIE 12680, Techniques and Instrumentation for Detection of Exoplanets XI, 126802D (5 October 2023); https://doi.org/10.1117/12.2677532
dc.identifier.isbn978-151066574-3
dc.identifier.issn0277-786X
dc.identifier.doi10.1117/12.2677532
dc.identifier.urihttp://hdl.handle.net/10150/671596
dc.description.abstractConnecting a coronagraph instrument to a spectrograph via a single-mode optical fiber is a promising technique for characterizing the atmospheres of exoplanets with ground and space-based telescopes. However, due to the small separation and extreme flux ratio between planets and their host stars, instrument sensitivity will be limited by residual starlight leaking into the fiber. To minimize stellar leakage, we must control the electric field at the fiber input. Implicit electric field conjugation (iEFC) is a model-independent wavefront control technique in contrast with classical electric field conjugation (EFC) which requires a detailed optical model of the system. We present here the concept of an iEFC-based wavefront control algorithm to improve stellar rejection through a single-mode fiber. As opposed to image-based iEFC which relies on minimizing intensity in a dark hole region, our approach aims to minimize the amount of residual starlight coupling into a single-mode fiber. We present broadband simulation results demonstrating a normalized intensity ≥ 10−10 for both fiber-based EFC and iEFC. We find that both control algorithms exhibit similar performance for the low wavefront error case, however, iEFC outperforms EFC by ≈ 100x in the high wavefront error regime. Having no need for an optical model, this fiber-based approach is theoretically easier to implement than conventional EFC on future ground and space-based telescope missions. © 2023 SPIE.
dc.language.isoen
dc.publisherSPIE
dc.rights© 2023 SPIE. (2023) Published by SPIE.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectexoplanets
dc.subjecthigh contrast imaging
dc.subjectsingle-mode fibers
dc.subjectspectroscopy
dc.subjectwavefront control
dc.subjectwavefront sensing
dc.titleImplicit electric field conjugation for improved starlight rejection through a single-mode fiber
dc.typeProceedings
dc.typetext
dc.contributor.departmentJames C. Wyant College of Optical Sciences, University of Arizona
dc.identifier.journalProceedings of SPIE - The International Society for Optical Engineering
dc.description.noteImmediate access
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal Published Version
dc.source.journaltitleProceedings of SPIE - The International Society for Optical Engineering
refterms.dateFOA2024-03-22T02:47:51Z


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