Physics – Optics
Scientific paper
Feb 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002spie.4494..259l&link_type=abstract
Proc. SPIE Vol. 4494, p. 259-270, Adaptive Optics Systems and Technology II, Robert K. Tyson; Domenico Bonaccini; Michael C. Rog
Physics
Optics
1
Scientific paper
We report initial results from a prototype system to generate multiple Rayleigh laser guide stars for adaptive optics from a single pulsed laser at 354 nm wavelength. A 3.2 mW laser pulsed at 630 Hz was used to project three beams on the sky simultaneously, each pulsed at 210 Hz. A spinning mirror was used to direct the pulses in three directions at the vertices of an equilateral triangle 90 arcsec across. Laser pulses were triggered by a synchronising electrical pulse from the motor. Dynamic focusing optics in the receiving telescope will in future be used to hold such beacons from more powerful lasers in focus over a height range of many kilometers. Multiple beacons can be used to derive tomographic information on the vertical distribution of the aberration. We show initial analytical and numerical work on how the unique features of refocused Rayleigh beacons can improve the tomographic wavefront measurement for multi-conjugate adaptive optics.
Angel James Roger P.
Brusa Guido
Georges James A.
Lloyd-Hart Michael M.
Young Patrick
No associations
LandOfFree
Dynamically refocused Rayleigh laser beacons for atmospheric tomography 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 Dynamically refocused Rayleigh laser beacons for atmospheric tomography, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamically refocused Rayleigh laser beacons for atmospheric tomography will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1044358