Performance of large-format deformable mirrors constructed with hybrid variable reluctance actuators II: Initial lab results from FLASH

Rachel Bowens-Rubin, Philip Hinz, Stefan Kuiper, Daren Dillon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Advancements in high-efficiency variable reluctance actuators are an enabling technology for building the next generation of large-format deformable mirrors, including adaptive secondary mirrors. The Netherlands Organization for Applied Scientific Research (TNO) has developed a new style of hybrid variable-reluctance actuator that requires approximately seventy-five times less power to operate as compared to the traditional style of voice-coil actuators. We present the initial performance results from laboratory testing of TNO's latest 19-Actuator prototype mirror, FLASH. We report the linearity, hysteresis, natural shape flattening, actuator cross-coupling, creep, and repeatability of the FLASH prototype and compare the results to previous TNO prototype deformable mirrors. We also present results of the performance of FLASH on sub-millisecond timescales in order to estimate the limits for the use of this technology when utilized to perform high-contrast imaging adaptive optics.

Original languageEnglish (US)
Title of host publicationTechniques and Instrumentation for Detection of Exoplanets X
EditorsStuart B. Shaklan, Garreth J. Ruane
PublisherSPIE
ISBN (Electronic)9781510644847
DOIs
StatePublished - 2021
EventTechniques and Instrumentation for Detection of Exoplanets X 2021 - San Diego, United States
Duration: Aug 1 2021Aug 5 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11823
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceTechniques and Instrumentation for Detection of Exoplanets X 2021
Country/TerritoryUnited States
CitySan Diego
Period8/1/218/5/21

Keywords

  • Adaptive Optics
  • Adaptive Secondary Mirrors
  • Deformable Secondary Mirrors
  • Hybrid Variable Reluctance Actuators
  • Large-Format Deformable Mirrors
  • TNO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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