Investigation on the role of coherence in polarization beam combining of 2 x 100W fiber lasers

Sooraj M. S.; Awakash Dixit; Padmanabhan A.; D. Venkitesh; B. Srinivasan

doi:10.1117/12.2569430

21 August 2020 Investigation on the role of coherence in polarization beam combining of 2 x 100W fiber lasers

Sooraj M. S., Awakash Dixit, Padmanabhan A., D. Venkitesh, B. Srinivasan

Proceedings Volume 11483, Novel Optical Systems, Methods, and Applications XXIII; 114830X (2020) https://doi.org/10.1117/12.2569430
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Conference Poster

Abstract

In this paper, we report an investigation on Polarization Beam Combining (PBC) of two laser beams through simulation and experimental studies. The polarization beam combining of two 100 W fiber laser beams with overall efficiency 98% has been demonstrated. We have compared the output beam stability and efficiency in both coherent and incoherent cases for different power levels. Simulations shows that the combined beam intensity and its stability are not degraded significantly due to phase correlation between beams, which is validated through our experimental results.

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Sooraj M. S., Awakash Dixit, Padmanabhan A., D. Venkitesh, and B. Srinivasan "Investigation on the role of coherence in polarization beam combining of 2 x 100W fiber lasers", Proc. SPIE 11483, Novel Optical Systems, Methods, and Applications XXIII, 114830X (21 August 2020); https://doi.org/10.1117/12.2569430

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