Dynamic coherent beam combining based on a setup of microlens arrays

Maike Prossotowicz; Andreas Heimes; Daniel Flamm; Florian Jansen; Hans-Jürgen Otto; Aleksander Budnicki; Uwe Morgner; Alexander Killi

doi:10.1117/12.2547303

2 March 2020 Dynamic coherent beam combining based on a setup of microlens arrays

Maike Prossotowicz, Andreas Heimes, Daniel Flamm, Florian Jansen, Hans-Jürgen Otto, Aleksander Budnicki, Uwe Morgner, Alexander Killi

Author Affiliations +

Proceedings Volume 11266, Laser Resonators, Microresonators, and Beam Control XXII; 1126612 (2020) https://doi.org/10.1117/12.2547303
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

A novel optical concept is introduced with standard components for highly efficient coherent beam combining a system of (N x N) beams. In a proof-of-principle experiment a well-defined setup with microlens arrays (MLAs) is used to create a beam matrix of 5 x 5 beams. For the combination step the same setup is employed, and the created 25 beams are combined. A combination efficiency above 90% is achieved. Furthermore, the concept allows for dynamic beam combination, i.e., the resulting number of beams and corresponding positions can be controlled by the absolute phases of the array of input beams. A proof-of-principle experiment shows excellent agreement with the model.

Citation Download Citation

Maike Prossotowicz, Andreas Heimes, Daniel Flamm, Florian Jansen, Hans-Jürgen Otto, Aleksander Budnicki, Uwe Morgner, and Alexander Killi "Dynamic coherent beam combining based on a setup of microlens arrays", Proc. SPIE 11266, Laser Resonators, Microresonators, and Beam Control XXII, 1126612 (2 March 2020); https://doi.org/10.1117/12.2547303

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