Young Soo Choi, Agency for Defence Development, Young Soo Choi, Agency for Defence Development, Jae Eun Yoo, Agency for Defence Development, Sung Soo Kim, Agency for Defence Development, Won Tae Park, Optoelectronic System Development Center, Doosan DST, Jong Kyu Jung, Optoelectronic System Development Center, Doosan DST, Soo Man Lee, Optoelectronic System Development Center, Doosan DST
Keywords: adaptive optics, deformable mirror, wavefront sensor, phase plate, Strehl ratio
Abstract:
We have developed Adaptive Optics testbed to obtain the visible high resolution imaging. Here, the various experimental performances of the AO testbed in the laboratory have been reported. The closed-loop AO system with real-time operations that is 1000Hz sampling frequency, has been compensated for both tip/tilt and high order disturbances induced by the rotating phase plates as the atmospheric turbulence simulators. A 277-element Deformable mirror(DM-277-15, ALPAO) with continuous membrane magnetic voice coils is matched with a 16×16 Shack-Hartmann wavefront sensor(Firstight). To evaluate the quality of the image, the average Strehl ratios have been measured as a function of object light levels and atmospheric seeing conditions.
Date of Conference: September 15-18, 2015
Track: Poster