6.5-m MMT infrared adaptive optics system: detailed design and progress report

David G. Sandler; Michael Lloyd-Hart; Ty Martinez; Peter M. Gray; James Roger P. Angel; Todd K. Barrett; Donald G. Bruns; Steven M. Stahl

doi:10.1117/12.217754

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25 August 1995 6.5-m MMT infrared adaptive optics system: detailed design and progress report

David G. Sandler, Michael Lloyd-Hart, Ty Martinez, Peter M. Gray, James Roger P. Angel, Todd K. Barrett, Donald G. Bruns, Steven M. Stahl

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Proceedings Volume 2534, Adaptive Optical Systems and Applications; (1995) https://doi.org/10.1117/12.217754
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We present an overview of the new adaptive system under development for the conversion of the Multiple Mirror Telescope (MMT) to a 6.5 m continuous primary mirror. The system is optimized for diffraction-limited imaging from 1.6 to 2.2 micrometer wavelength, using an adaptive secondary mirror which directly feeds an infrared science detector at f/15 Cassegrain focus. Nearly full sky coverage will be obtained using a low-power, continuous wave (cw) sodium laser beacon to sense high-order wavefront errors, with image motion sensing using a quadrant detector sensitive to infrared field star photons in the 1.2 - 1.6 micrometer band. Components are currently under development, so that the adaptive instrument can be integrated with the new 6.5 m telescope soon after first light.

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David G. Sandler, Michael Lloyd-Hart, Ty Martinez, Peter M. Gray, James Roger P. Angel, Todd K. Barrett, Donald G. Bruns, and Steven M. Stahl "6.5-m MMT infrared adaptive optics system: detailed design and progress report", Proc. SPIE 2534, Adaptive Optical Systems and Applications, (25 August 1995); https://doi.org/10.1117/12.217754

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