Absolute calibration of null correctors using twin computer-generated holograms

Proteep C.V. Mallik, Rene Zehnder, James H. Burge, Alexander Poleshchuk

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

2 Scopus citations


We present a method for a cascading null test using twin computer-generated holograms to calibrate errors in null correctors. This will allow us to test large aspheres an order of magnitude better than current limits. We discuss various sources of CGH errors and how to calibrate them. We also mention some ways to measure and calibrate the errors in the test optics.

Original languageEnglish (US)
Title of host publicationInterferometry XIII
Subtitle of host publicationTechniques and Analysis
StatePublished - 2006
EventInterferometry XIII: Techniques and Analysis - San Diego, CA, United States
Duration: Aug 14 2006Aug 16 2006

Publication series

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


OtherInterferometry XIII: Techniques and Analysis
Country/TerritoryUnited States
CitySan Diego, CA

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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