Generation of OAM beams with multiple modes with concentric spiral sub-array

Key Points

• OAM beams are generated through a unique spiral sub-array design, enhancing light manipulation capabilities.
• The study shows multiple modes can be effectively generated, which may advance applications in quantum communication.
• Analysis of the concentric spiral sub-array structure reveals its efficiency in producing varied optical modes for beam shaping.
• These findings highlight the potential of new optical systems, yet practical deployment requires further innovation in technology.