High speed low latency solar adaptive optics camera

Kit Richards; Thomas R. Rimmele; Reuben Hill; Jianxin Chen

doi:10.1117/12.508390

4 February 2004 High speed low latency solar adaptive optics camera

Kit Richards, Thomas R. Rimmele, Reuben Hill, Jianxin Chen

Proceedings Volume 5171, Telescopes and Instrumentation for Solar Astrophysics; (2004) https://doi.org/10.1117/12.508390
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

This paper describes a versatile camera designed to operate at high frame rates of > 2kHz. Such high frame rates are required to reduce the latency, i.e., achieve high bandwidth in a solar adaptive optics application. The camera was designed around a 1280x1024 pixel CMOS 10-bit sensor with a readout rate of 2 microseconds per row. The output is switchable between a standard Camera Link interface with four 10-bit ports (standard camera mode) and a non-standard Camera Link interface with twelve 8-bit ports (adaptive optics mode). The programmable camera interface maps blocks of pixels to output ports enabling multiple regions of interest. This mode is of particular interest for solar multi-conjugate adaptive optics (MCAO). The speed of the camera is determined by the number of rows of pixels needed in the application. For example, a 200x200 pixel sub-array that is needed for the 97-actuator solar adaptive optics system at the Dunn Solar Telescope can be read out at a rate of 2.5kHz. Camera design and performance will be discussed.

Citation Download Citation

Kit Richards, Thomas R. Rimmele, Reuben Hill, and Jianxin Chen "High speed low latency solar adaptive optics camera", Proc. SPIE 5171, Telescopes and Instrumentation for Solar Astrophysics, (4 February 2004); https://doi.org/10.1117/12.508390

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