Title :
Wavefront compensation using liquid crystal spatial light modulators-scaling issues
Author :
Guthals, D. ; Sox, D. ; Joswick, M. ; Rodney, P.J.
Author_Institution :
Lasers & Electro-Opt. Syst., Boeing Space & Commun Group, Canoga Park, CA, USA
Abstract :
We have demonstrated compensation of a severely warped meter-class telescope and explored there performance. Real time holographic (RTH) compensation can permit the use of large imperfect mirrors of misphased mirror segments in aggressively lightweighted deployable optics. The technique can also compensate for dynamic aberrations introduced by vibrations and thermal loading. This can greatly reduce the weight and complexity of isolation and positioning systems for large deployable telescope systems. The optical efficiency of an optically addressed spatial light modulator (OASLM)-based holographic compensation system can approach 40%.
Keywords :
aberrations; adaptive optics; astronomical telescopes; compensation; holographic optical elements; image resolution; mirrors; spatial light modulators; 40 percent; aggressively lightweighted deployable optics; dynamic aberrations; large deployable telescope systems; large imperfect mirrors; liquid crystal spatial light modulators; misphased mirror segments; optical efficiency; optically addressed spatial light modulator based holographic compensation system c; real time holographic compensation; scaling issues; severely warped meter-class telescope; thermal loading; vibrations; wavefront compensation; Adaptive optics; Holographic optical components; Holography; Liquid crystals; Mirrors; Optical distortion; Optical modulation; Optical receivers; Telescopes; Testing;
Conference_Titel :
Electronic-Enhanced Optics, Optical Sensing in Semiconductor Manufacturing, Electro-Optics in Space, Broadband Optical Networks, 2000. Digest of the LEOS Summer Topical Meetings
Conference_Location :
Aventura, FL, USA
Print_ISBN :
0-7803-6252-7
DOI :
10.1109/LEOSST.2000.869734
