Physics – Optics
Scientific paper
Feb 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spie.7931e...7h&link_type=abstract
MEMS Adaptive Optics V. Edited by Olivier, Scot S.; Bifano, Thomas G.; Kubby, Joel A. Proceedings of the SPIE, Volume 7931, p
Physics
Optics
1
Scientific paper
Iris AO is actively developing piston-tip-tilt (PTT) segmented MEMS deformable mirrors (DM) and adaptive optics (AO) controllers for these DMs. This paper discusses ongoing research at Iris AO that has advanced the state-of-the-art of these devices and systems over the past year. Improvements made to open-loop operation and mirror fabrication enables mirrors to open-loop flatten to 4 nm rms. Additional testing of an anti snap-in technology was conducted and demonstrates that the technology can withstand 100 million snap-in events without failure. Deformable mirrors with dielectric coatings are shown that are capable of handling 630 W/cm2 of incident laser power. Over a localized region on the segment, the dielectric coatings can withstand 100kW/cm2 incident laser power for 30 minutes. Results from the first-ever batch of PTT489 DMs that were shipped to pilot customers are reported. Optimizations made to the open-loop PTT controller are shown to have latencies of 157.5 μs and synchronous array update rates of nearly 6.5 kHz. Finally, plans for the design and fabrication of the next-generation PTT939 DM are presented.
Besse Marc
He Min
Helmbrecht Michael A.
Kempf Carl J.
No associations
LandOfFree
MEMS DM development at Iris AO, Inc. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with MEMS DM development at Iris AO, Inc., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MEMS DM development at Iris AO, Inc. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1534043