Home of the Zwobbel development team picture.

Our Story

Robust AO was founded in 2020 by Dr.-Ing. Claudia Reinlein, M.Eng. Marlies Gier and M.Eng. Immanuel Burkhardt. It is a owner-managed company and spin-off of the Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) in Jena. As it is the founders shared passion to develop adaptive optical solutions, we started Robust AO as an EXIST Project. Although we are still a young start-up, we collectively possess more than 15 years of experience in developing and manufacturing high-quality adaptive optical solutions.

Together, we are the home of the Zwobbel®


For our customers in the field of laser material processing, we make it possible to achieve multidimensional process efficiency and process innovations.


We develop and commercialise the Zwobbel®, which enables three factors for success:

  1. Short throughput time while maintaining manufacturing quality
  2. Robust and high-performance construction
  3. Compact Plug’n’Play solution


Our daily work centres on trust and respect for our partners and customers. Together we create innovations focused on our customers’ demands and flexibly respond to their challenges. Our goal is to achieve more efficiency and sustainability of products and for production – both for our customers and Robust AO.

Thanks to our background in applied research, we have gained a broad knowledge in the application of adaptive optical (AO) systems. In the following, we present a selection from a paper with contributions to the Robust AO team found in the fields of focusing solutions and systems for laser and optical communication.

Scientific Publications

Focusing solutions

P. Böttner, A. Brady, C. Reinlein, R. Eberhardt, and S. Nolte, „Design routine and characterisation of a biconic deformable metal mirror for focus shifting,“ Opt. Express 29, 2971-2983 (2021). https://doi.org/10.1364/OE.408748

C. Reinlein, M. Appelfelder, M. Goy, K. Ludewigt, and A. Tünnermann, „Performance of a thermal-piezoelectric deformable mirror under 6.2  kW continuous-wave operation,“ Appl. Opt. 52, 8363-8368 (2013). https://www.osapublishing.org/ao/abstract.cfm?uri=ao-52-34-8363

A. Jahn, C. Goppold, P. Herwig, C. Reinlein, P. Böttner, D. Stoffel, and M. Bach, „High dynamic beam shaping by piezo driven modules for efficient and high quality laser beam cutting and welding,” Lasers in Manufacturing (LiM), München , Germany 24-27 June, 2019

T. Goebel, C. Voigtländer, R. Krämer, D. Richter, M. Heck, M. Siems, C. Matzdorf, C. Reinlein, M. Appelfelder, T. Schreiber, J. Thomas, A. Tünnermann, and S. Nolte, „Flexible femtosecond inscription of fiber Bragg gratings by an optimized deformable mirror,“ Opt. Lett. 42, 4215-4218 (2017). https://www.osapublishing.org/ol/abstract.cfm?uri=ol-42-20-4215

T. Kopf, C. Reinlein, M. Goy, R. Eberhardt, J. Langebach, and T. Scheller, „Adapting the axial focus in high-power laser processing machines within mm-range„, Proc. SPIE 10097, High-Power Laser Materials Processing: Applications, Diagnostics, and Systems VI, 100970K (22 February 2017); https://doi.org/10.1117/12.2252098

P. Böttner, C. Reinlein, A. Jahn, P. Herwig, C. Goppold, D. Stoffel, M. Bach „Design, manufacturing and test of a highly dynamic piezo-driven metal mirror for laser material processing“ Proc. Lasers in Manufacturing (LiM), München , Germany 24-27 June, 2019

M. Goy, C. Reinlein, J. Kinast, and N. Lange „Cryogenic testing of a unimorph-type deformable mirror and theoretical material optimization,“ Journal of Micro/Nanolithography, MEMS, and MOEMS 13(1), 011107 (27 November 2013). https://doi.org/10.1117/1.JMM.13.1.011107

AO-Systems for laser and optical communication:

M. Gier, A. Brady, R. Eberhardt, and C. Reinlein, „Tip-tilt system characterization as a tool for fiber coupling efficiency estimation,“ in Imaging and Applied Optics Congress, OSA Technical Digest (Optical Society of America, 2020), paper JW2A.47. https://www.osapublishing.org/abstract.cfm?uri=AOMS-2020-JW2A.47

A. Brady, C. Rössler, N. Leonhard, M. Gier, P. Böttner, R. Eberhardt, A. Tünnermann, and C. Reinlein, „Validation of pre-compensation under point-ahead-angle in a 1 km free-space propagation experiment,“ Opt. Express 27, 17840-17850 (2019). https://www.osapublishing.org/oe/abstract.cfm?uri=oe-27-13-17840

A. Brady, R. Berlich, N. Leonhard, T. Kopf, P. Böttner, R. Eberhardt, and C. Reinlein, „Experimental validation of phase-only pre-compensation over 494  m free-space propagation,“ Opt. Lett. 42, 2679-2682 (2017). https://www.osapublishing.org/ol/abstract.cfm?uri=ol-42-14-2679

N. Leonhard, R. Berlich, S. Minardi, A. Barth, S. Mauch, J. Mocci, M. Goy, M. Appelfelder, E. Beckert, and C. Reinlein, „Real-time adaptive optics testbed to investigate point-ahead angle in pre-compensation of Earth-to-GEO optical communication,“ Opt. Express 24, 13157-13172 (2016). https://www.osapublishing.org/oe/abstract.cfm?uri=oe-24-12-13157

N. Leonhard, G. Sorelli, Vyacheslav N. Shatokhin, C. Reinlein, and A, Buchleitner, „Protecting the entanglement of twisted photons by adaptive optics,“ Phys. Rev. A 97, 012321 (2018). https://journals.aps.org/pra/abstract/10.1103/PhysRevA.97.012321

G. Sorelli, N. Leonhard, V. N. Shatokhin, C. Reinlein and A. Buchleitner, „Entanglement protection of high-dimensional states by adaptive optics,“ New J. Phys.21 023003 (2019). https://iopscience.iop.org/article/10.1088/1367-2630/ab006e/meta

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