Tiled arrays use modulo-2π phase compensation and coherent beam combination to correct for the effects of deep turbulence. As such, this paper uses wave-optics simulations to compare the closed-loop performance of tiled arrays to a branch-point-tolerant phase reconstructor known as LSPV+7 [Appl. Opt. 53, 3821 (2014) [CrossRef] ]. The wave-optics simulations make use of a point-source beacon and are setup with weak-to-strong scintillation conditions. This setup enables a trade-space exploration in support of a power-in-the-bucket comparison with LSPV+7. In turn, the results show that tiled arrays outperform LSPV+7 when transitioning from weak-to-strong scintillation conditions. These results are both encouraging and informative for those looking to tackle the branch-point problem in adaptive optics.
Mark F. Spencer and Terry J. Brennan, "Deep-turbulence phase compensation using tiled arrays," Opt. Express 30, 33739-33755 (2022)
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Posted on AFIT Scholar accordance with the terms listed at Sherpa/Romeo for Optics Express [pathway b]. https://v2.sherpa.ac.uk/id/publication/13361
Mark F. Spencer is co-affiliated with AFIT and the Air Force Research Laboratory.