Arsh Mahajan, and Kulwinder Singh Malhi. “PERFORMANCE INVESTIGATIONS OF 40 GB/S ORBITAL ANGULAR MOMENTUM MULTIPLEXED FREE SPACE OPTICS TRANSMISSION SYSTEM UNDER WEATHER TURBULENCE”. Journal Punjab Academy of Sciences, vol. 23, Dec. 2023, pp. 329-37, https://jpas.in/index.php/home/article/view/87.