Interferometric wavefront sensors for extreme adaptive optics on the Thirty Meter Telescope

K. L. Baker; B. A. Macintosh; D. W. Phillion; L. A. Poyneer; B. J. Bauman

doi:10.1117/12.672405

27 June 2006 Interferometric wavefront sensors for extreme adaptive optics on the Thirty Meter Telescope

K. L. Baker, B. A. Macintosh, D. W. Phillion, L. A. Poyneer, B. J. Bauman

Proceedings Volume 6272, Advances in Adaptive Optics II; 62725D (2006) https://doi.org/10.1117/12.672405
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

Direct observation of extrasolar Jovian planets will enable detailed investigation and understanding of the formation of these planet populations and also of their relative abundance. Future large telescopes, such as the Thirty Meter Telescope(TMT), will enable the study of such planet populations at relatively small working distances from the parent star. We present an analysis of an extreme adaptive optics system utilizing a self-referencing phase-shifting interferometer as the primary wave-front sensor. A module of the adaptive optics system consists of a conventional Shack-Hartmann wave-front sensor to provide the initial start-up of the adaptive optics system, thereby placing a significant amount of energy into the core of the point spread function which will act as the reference for the primary interferometric wave-front sensor. The interferometric-based wave-front sensor is shown to provide a significant improvement in the achievable contrast ratio compared with conventional adaptive optics systems containing Shack-Hartmann wave-front sensors.

Citation Download Citation

K. L. Baker, B. A. Macintosh, D. W. Phillion, L. A. Poyneer, and B. J. Bauman "Interferometric wavefront sensors for extreme adaptive optics on the Thirty Meter Telescope", Proc. SPIE 6272, Advances in Adaptive Optics II, 62725D (27 June 2006); https://doi.org/10.1117/12.672405

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available