Closed-loop bandwidth optimization to maximize adaptive optics system performance

Robert T. Brigantic; Michael C. Roggemann; Byron M. Welsh; Kenneth W. Bauer

doi:10.1117/12.279062

17 October 1997 Closed-loop bandwidth optimization to maximize adaptive optics system performance

Robert T. Brigantic, Michael C. Roggemann, Byron M. Welsh, Kenneth W. Bauer

Proceedings Volume 3126, Adaptive Optics and Applications; (1997) https://doi.org/10.1117/12.279062
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

We present results of research aimed at optimizing adaptive optics closed loop bandwidth settings to maximize imaging system performance. The optimum closed loop bandwidth settings are determined as a function of target object light levels and atmospheric seeing conditions. Our work shows that for bright objects, the optimum closed loop bandwidth is near the Greenwood frequency. However, for dim objects without the use of a laser beacon, the preferred closed loop bandwidth settings are a small fraction of the Greenwood frequency. In addition, under low light levels, selection of the proper closed loop bandwidth is more critical for achieving maximum performance than under high light levels. We also present a strategy for selecting the closed loop bandwidth to provide robust system performance for different target object light levels.

Citation Download Citation

Robert T. Brigantic, Michael C. Roggemann, Byron M. Welsh, and Kenneth W. Bauer "Closed-loop bandwidth optimization to maximize adaptive optics system performance", Proc. SPIE 3126, Adaptive Optics and Applications, (17 October 1997); https://doi.org/10.1117/12.279062

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