Mehtab Singh

Performance assessment of Laguerre–Gaussian OAM modes for high-capacity underwater optical wireless communication

Abstract In this paper, a four Laguerre–Gaussian modes ( LG 0 0 ${\mathit{LG}}_{0}^{0}$ , LG 18 0 ${\mathit{LG}}_{18}^{0}$ , LG 45 0 ${\mathit{LG}}_{45}^{0}$ , and LG 75 0 ${\mathit{LG}}_{75}^{0}$ ) based underwater optical wireless communication (UOWC) system for transporting 10...

Performance analysis of a 5 Gbps PAM-4 modulated visible light optical wireless communication link: impact of transmission power, receiver field-of-view, and concentrator design parameters

Abstract This paper presents a detailed performance study of a visible light communication (VLC) link using 4-level pulse amplitude modulation (PAM-4) at a 450 nm wavelength. Link performance is systematically evaluated as a function of transmission distance across varying transm...

Numerical investigation of hybrid taper–grating coupling for broadband fiber-to-chip interfaces in silicon photonics

Abstract One of the most critical bottlenecks in photonic integrated circuit packaging in today’s scenario is efficient optical coupling between single-mode fibers (SMFs) and silicon-on-insulator (SOI) photonic chips. This is due to the severe mode-field diameter mismatch, which...