13 May 2015 Automated optical system alignment and low order wavefront sensing
Author Affiliations +
An automated alignment optical system will greatly simplify alignment tasks, increase the flexibility and utility of reconfigurable optical systems, and allow for the quick and efficient set up distributed optical systems. In this work, we demonstrate automated alignment of a tilted and decentered focal lens using only focal plane imaging by exploiting the aberration effects caused by the misalignment. A Gaussian beam is passed through the lens with 4 degrees of freedom and onto a science camera. The deformation of the spot image is analyzed to determine the tilt and shift misalignments on the lens. Corrections based on these measurements are applied in closed loop to align the system. We discuss various techniques for mitigating measurement errors, characterizing the system and operating the control loop and present results from the experiment.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joyce Fang, Joyce Fang, Dmitry Savransky, Dmitry Savransky, } "Automated optical system alignment and low order wavefront sensing", Proc. SPIE 9481, Image Sensing Technologies: Materials, Devices, Systems, and Applications II, 94810W (13 May 2015); doi: 10.1117/12.2181823; https://doi.org/10.1117/12.2181823


Projecting the rate of in field pixel defects based on...
Proceedings of SPIE (February 15 2012)
Metrology systems of Hobby-Eberly Telescope wide field upgrade
Proceedings of SPIE (September 26 2012)
A photogrammetric method for monitoring sandbank movement
Proceedings of SPIE (August 06 2007)
3D measurement of a soap stone brick
Proceedings of SPIE (September 09 1999)
The Subaru coronagraphic extreme AO project: progress report
Proceedings of SPIE (September 15 2011)

Back to Top