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arXiv · 2608.23532

Diffractive optical element for super-Gaussian beam shaping on intersatellite optical communications

Mario Badás Aldecocea·Ziheng Wang·Mohammad Dabiri·Iman Tavakkolnia
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Abstract

Pointing jitter can significantly degrade the performance of intersatellite optical communication links. This work investigates diffractive optical beam shaping as a means of generating super-Gaussian profiles with reduced sensitivity to transmitter misalignment. Phase screens are designed using a Gerchberg--Saxton phase-retrieval algorithm and evaluated for different super-Gaussian orders. Lower-order profiles are reproduced accurately, whereas higher orders are increasingly limited by numerical discretization and finite-aperture effects. The practical implementation of the phase screens using fused-silica diffractive optical elements is assessed through sensitivity analyses of radial manufacturing resolution, phase quantization, phase-depth errors, and incident-beam wavefront aberrations. The results provide manufacturing tolerances and wavefront-quality requirements for preserving the desired beam shape.

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Mario Badás Aldecocea, Ziheng Wang, Mohammad Dabiri, Iman Tavakkolnia. 2026-08-24. Diffractive optical element for super-Gaussian beam shaping on intersatellite optical communications. https://arxiv.org/abs/2608.23532

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