Chromatic behavior of amplitude and phase compensators

Laurent Pueyo, Michael G. Littman, N. Jeremy Kasdin, Ruslan Belikov, Amir Give'on

Research output: Contribution to journalArticlepeer-review


The achievable contrast level for space-based detection of exo-planets will be limited by the stability of the optics. As a consequence, active amplitude and phase compensation will be needed. High order aberrations can arise from both non linearity and Fresnel propagation, their wavelength dependence is studied here and it is concluded that λ independent errors are dominant. The behavior of a Michelson interferometer equipped with two deformable mirrors under chromatic light is then presented, and an achromatization method based on a dispersive element is suggested.

Original languageEnglish (US)
Pages (from-to)435-439
Number of pages5
JournalProceedings of the International Astronomical Union
Issue numberC200
StatePublished - 2005

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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