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twip optical solutions GmbH

 

 
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Institut f. Technische Optik
Universität Stuttgart
Pfaffenwaldring 9
70569 Stuttgart
Deutschland

T: +49 (0)711/685-66074
F: +49 (0)711/685-66586

 

Wellenfrontsensorik

The measurement of wavefronts is necessary for many tasks in the field of adaptive optics, alignment and optical testing. Most often, Shack-Hartmann sensors (SHS) are employed.  In the past we extended conventional SHS towards dynamic/adaptive SHS sensing, holographic SHS and scene-based dynamic SHS. We also investigated SHS in combination with other sensor principles. Currently we work on the improvement of dynamic range and measurement uncertainty using a holographic SHS approach.

For adaptive optics applications where high speed at low cost is desired we focus on holographic modal wavefront sensing. The modes can be conventional Zernike modes or other modes that are optimum for a given application (e.g. eigenmodes of a membrane mirror).

Current Project: DFG Holographic-based Zernike modal wavefront sensing

Publications:

  1. Dong, S.,  Haist, T., Osten, W.,  Ruppel, T., Sawodny, O., "Response analysis of holography-based modal wavefront sensor," Appl. Opt.  51, 1318-1327 (2012).
  2. Dong, S., Haist, T., Osten, W., Ruppel, T., Sawodny, O., „Holographic combination of low-resolution Shack-Hartmann sensor and holography-based modal Zernike wavefront sensor“, Proc. SPIE 8447 (2012)
  3. Dong, S., Haist, T., W. Osten, W.,  "Hybrid wavefront sensor for the fast detection of wavefront disturbances," Appl. Opt.  51, 6268-6274 (2012).
  4. Dong, S,. , Haist, T., Osten, W., Ruppel, T., Sawodny, O., “Response analysis and experimental results of holography-based modal Zernike wavefront sensor“, Proc. SPIE 8165 (2011)
  5. Haist, T. , Hafner, J., Osten, W., Scene-based wavefront correction with spatial light modulators, Proc. SPIE 7064, 70640M, (2008)
  6. Seifert, L., Ruppel, T., Haist, T., Osten, W., "Wavefront sensing by an aperiodic diffractive microlens array", Proc. SPIE 6293 (2006)
  7. Seifert, L, Liesener, J., Tiziani, H.J., „The adaptive Shack–Hartmann sensor“, Optics Communications, Volume 216, 313-319 (2003)