Axicons in FSO Systems
Leonardo A. Ambrosio, Michel Zamboni-Rached, Hugo E., Hern\'andez-Figueroa
TL;DR
This paper explores the use of axicons in Free Space Optics systems, analyzing beam behavior and proposing GRIN axicons for improved alignment techniques.
Contribution
It introduces the analysis of pseudo-Bessel beams from different axicons and suggests a novel application of GRIN axicons for beam pattern control in FSO.
Findings
Pseudo-Bessel beams analyzed via Huygens-Fresnel integral.
GRIN axicons can tailor intensity patterns along propagation.
Potential for improved alignment in FSO systems.
Abstract
This paper studies the possibility of using axicons in Free Space Optics (FSO) systems. The behavior of the pseudo- Bessel beams generated by "logarithmic" and "linear" axicons, with or without stops, was analyzed through the Huygens-Fresnel integral of diffraction in cylindrical coordinates. We also show that GRIN (Gradient Index) axicons, when well designed, could be used in order to choose the intensity pattern along the propagation axis, which could be a new technique for the alignment equipment.
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Taxonomy
TopicsOrbital Angular Momentum in Optics · Adaptive optics and wavefront sensing · Optical Wireless Communication Technologies