Technique to Increase the Adaptive Optical System Energy Efficiency

Abstract

The paper presents methodology for the light and energy computation of a wavefront sensor with the brightness amplifier and a technique to obtain a primary hartmanogram with minimum error for sucha sensor. Requirements for technical characteristics of the video cameras used in the adaptive optical systems are analyzed, and the key requirements for them are discussed. The paper shows necessity and advantages of using the electron-image tube as part of a wavefront sensor. It provides the signal/noise ratio computation for sensors based on the high-speed video cameras with and without a bright-ness amplifier. The calculations reveal that intro-ducing an electron-image tube in the adaptive optical systems used in the horizontal routes significantly increases their operation range. It is shown that the developed technique of light and energy computation identifies advantages of the adaptive optical systems with wavefront sensors based on the electron-image tube. The method for obtaining a reference hartmanogram makes it possible to receive a wavefront with a minimum error relative to the mathematically computed ideal. The paper notes that the presented study results indicate a possibility of obtaining a reference hartmanogram under conditions close to operation in routes with increased turbulence, which improves the adaptive optical system quality

Please cite this article in English as:

Sakharov A.A., Zhivotovsky I.V., Karasik V.E., et al. Technique to increase the adaptive optical system energy efficiency. Herald of the Bauman Moscow State Technical University, Series Instrument Engineering, 2024, no. 4 (149), pp. 76--91 (in Russ.). EDN: ULBDDF

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