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30 August 2005 Application of orientational stimulated scattering in nematic liquid crystals for beam combining and clean-up
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Abstract
Recent experiments demonstrated high conversion efficiency in the process of Orientational Stimulated Scattering (OSS) in nematics. This fact makes OSS attractive for beam combining and clean-up. We consider a scheme for such application and study it by numerically modeling the process. As the process of energy transfer goes, the reverse transfer also begins. However, the region of the back-transfer moves inside the cell with constant velocity in +z direction and given sufficient time, leaves the cell. By modeling the OSS of diffracting one-dimensional beams we show the possibility to obtain a maximum 94% fidelity and 96% power transfer in a numerical experiment with 6 individual overlapping pump beamlets. This means that 90% of the total pump power may be converted into the diffraction-limited output. Remarkably, this output suffers very little cross-phase modulation.
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Hakob Sarkissian, Chang Tsai, and Boris Zeldovich "Application of orientational stimulated scattering in nematic liquid crystals for beam combining and clean-up", Proc. SPIE 5876, Laser Beam Shaping VI, 58760P (30 August 2005); https://doi.org/10.1117/12.617019
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