Vector beams that carrying orbital angular momentum (OAM) have become ubiquitous and topical in a variety of research fields. The quality of such beams usually degrades while propagating in space. Here, we report a noval technique to improve the quality of vector beams by amplifying these beams through birefringent amplifier. We demonstrated this experimentally over the different orientation of the amplifier to reach enhancement in the quality of maximum 20% of that for the incident beam.
Hend Sroor, Nyameko Lisa, Darryl Naidoo, Igor Litvin, and Andrew Forbes, "Cylindrical vector beams through amplifiers," Proc. SPIE 10511, Solid State Lasers XXVII: Technology and Devices, 105111M (Presented at SPIE LASE: February 01, 2018; Published: 15 February 2018); https://doi.org/10.1117/12.2290902.
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