Scaling potential of beam-splitter-based coherent beam combination
Mueller M, Aleshire C, Buldt J, Stark H, Grebing C, Klenke A, Limpert J (2021)
Publication Type: Journal article
Publication year: 2021
Journal
Book Volume: 29
Pages Range: 27900-27911
Journal Issue: 17
DOI: 10.1364/OE.433596
Abstract
The impact of nonlinear refraction and residual absorption on the achievable peak- and average power in beam-splitter-based coherent beam combination is analyzed theoretically. While the peak power remains limited only by the aperture size, a fundamental average power limit is given by the thermo-optical and thermo-mechanical properties of the beam splitter material and its coatings. Based on our analysis, 100 kW average power can be obtained with state-of-the-art optics at maintained high beam quality (M2 ≤ 1.1) and at only 2% loss of combining efficiency. This result indicates that the power-scaling potential of today’s beam-splitter-based coherent beam combination is far from being depleted. A potential scaling route to megawatt-level average power is discussed for optimized beam splitter geometry.
Involved external institutions
Germany (DE)How to cite
APA:
Mueller, M., Aleshire, C., Buldt, J., Stark, H., Grebing, C., Klenke, A., & Limpert, J. (2021). Scaling potential of beam-splitter-based coherent beam combination. Optics Express, 29(17), 27900-27911. https://doi.org/10.1364/OE.433596
MLA:
Mueller, Michael, et al. "Scaling potential of beam-splitter-based coherent beam combination." Optics Express 29.17 (2021): 27900-27911.
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