1. Dynamic coherent beam combining based on a setup of microlens arrays
- Author
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Prossotowicz, Maike, Heimes, Andreas, Flamm, Daniel, Jansen, Florian, Otto, Hans-Jürgen, Budnicki, Aleksander, Morgner, Uwe, Killi, Alexander, Armani, Andrea M., Kudryashov, Alexis V., Paxton, Alan H., and Ilchenko, Vladimir S.
- Subjects
Microlens ,Materials science ,business.industry ,Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau ,Microlens arrays ,Beam splitting ,Coherent beam combination ,Ultrafast optics ,Ultrashort pulses ,Beam shaping ,Matrix (mathematics) ,Optics ,Beam steering ,Mode control ,Physics::Accelerator Physics ,ddc:620 ,business ,Beam (structure) ,Konferenzschrift - 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. © COPYRIGHT SPIE
- Published
- 2020