27 July 2016 Low photon-count tip-tilt sensor
Author Affiliations +
Due to the low photon-count of dark areas of the universe, signal strength of tip-tilt sensor is low, limiting sky-coverage of reliable tip-tilt measurements. This paper presents the low photon-count tip-tilt (LPC-TT) sensor, which potentially achieves improved signal strength. Its optical design spatially samples and integrates the scene. This increases the probability that several individual sources coincide on a detector segment. Laboratory experiments show feasibility of spatial sampling and integration and the ability to measure tilt angles. By simulation an improvement of the SNR of 10 dB compared to conventional tip-tilt sensors is shown.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rudolf Saathof, Rudolf Saathof, Georg Schitter, Georg Schitter, } "Low photon-count tip-tilt sensor", Proc. SPIE 9909, Adaptive Optics Systems V, 99096U (27 July 2016); doi: 10.1117/12.2230220; https://doi.org/10.1117/12.2230220


Wavefront sensor design for the GMT natural guide star AO...
Proceedings of SPIE (September 12 2012)
Status of PRIMA for the VLTI or the quest for...
Proceedings of SPIE (July 21 2010)
Optical design for near range lidar
Proceedings of SPIE (November 11 2010)
SCORE 1+: enhancing a unique mid-infrared spectrograph
Proceedings of SPIE (August 20 1998)
Optical design for DIVA
Proceedings of SPIE (August 27 1998)

Back to Top