Download Adaptive optics engineering handbook by Robert Tyson PDF
By Robert Tyson
This guide offers analytical instruments for the layout and improvement of adaptive optics platforms to augment their skill to regulate for atmospheric turbulence, optical fabrication mistakes, thermally triggered distortions, and laser equipment aberrations. It presents thoughts for choosing, trying out and fitting a wavefront repayment system.
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V. S. S. Air Force telescope placed on Mt. Haleakala, HI, to replace the AMOS compensated imaging system. AEOS will use a Xinetics 941-actuator DM, identical to that in use at SOR, with an advanced control system to allow variations in the reconstructor matrix during observations to optimize the bandwidth, constrained by guide star brightness and site conditions. W. Anglo-Australian Telescope Because Australia has no high altitude sites suitable for high resolution astronomy, most of the science is accomplished through sky mapping and other widefield efforts.
L. Beuzit, N. Hubin, E. -Y. Madec, C. -P. -C. Richard, M. Vittot, P. Gigan, P. J. Lena, Proc. SPIE 2201, 1088 ( 1 994). J. L. , Proc. OSA Top. Mtg. Adap. , ESO, p. 57, 1996. D. Bonaccini, F. J. Rigault, A. Glindemann, G. -M. Mariotti, F. Paresce, Proc. SPIE 3353, 224 ( 1 998). D. Bonaccini, E. Prieto, P. Corporon, J. C. Christou, D. le Mignan, P. D. Drado, R. Gredel, N. N. , Proc. SPIE 3126, 589 (1997). 26 Tyson 24. R. Ragazzoni, D. Bonaccini, “The Adaptive Optics System for the Telescopio Nazionale Galileo,” Proc.
1 1 FREQUENCY 10 100 (Hr) Figure 5 Power spectrum for turbulence-induced tilt error, given in units of rad' of single-axis tilt per Hz. This model incorporates atmospheric moments developed from the modi tied Hufnagel-Valley turbulence profile and the Bufton wind profile. where the units here are rad' of single-axis tilt per Hz and normalized for integration over positive values off. A plot of this function for a 4-m aperture is given in Fig. 5. II. PHASE SENSOR AND TRACKING SENSOR MEASUREMENT NOISE Phase sensors and tracking systems have a number of similarities, and a good first-order analysis of both can be made by investigating the properties of a simple quadrant detector.