We recently presented a novel unimorph deformable mirror which allows for dynamic focus shift with an actuation rate of 2 kHz. Such mirrors suffer from hysteresis and creep. Therefore, they… Click to show full abstract
We recently presented a novel unimorph deformable mirror which allows for dynamic focus shift with an actuation rate of 2 kHz. Such mirrors suffer from hysteresis and creep. Therefore, they have to be operated in closed-loop. For this purpose, we developed a defocus sensor based on an astigmatic detection system. In this paper, we present the sensor design and discuss its performance.
Keywords:
deformable mirror;
sensor dynamic;
dynamic focus
Journal Title: Applied Optics
Year Published: 2020
Link to full text (if available)
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Journal Title: Applied Optics
Year Published: 2020
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!