Time, polarization, and wavelength multiplexing schemes have been used to satisfy the
growing need of transmission capacity. Using space as a new dimension for communication …

Optical orbital angular momentum (OAM) has become a hot research topic because of its
unique properties due to its spiral distribution of phases. The production and transmission of …

Quantum cryptography provides the inherent security for transmitting confidential information
across free space or a fiber link. However, a high secure-key rate is still a challenge for a …

In this letter, a hollow core ring based circular photonic crystal fiber (PCF) is explored and
proposed with stably supporting terahertz (THz) orbital angular momentum (OAM) states …

In the last three decades, light's orbital angular momentum (OAM) has been of great interest
because it has unique characteristics that make it sought after in many research fields …

In optical fiber, the Orbital Angular Momentum (OAM) mode is a special mode with spatially
infinite orthogonality. It provides a new multiplexing method to the communication capacity …

In this paper, a novel photonic crystal fiber (PCF) with dual guided modes regions is
proposed, which can support 56 orbital angular momentum (OAM) modes and 4 linear …

In this paper, a novel nested photonic crystal fiber (PCF) with two guided modes regions is
proposed, which can support 80 orbital angular momentum (OAM) modes over C …

The orbital angular momentum (OAM) of light can be another physical dimension that we
exploit to make multiplexing in the spatial domain. The design of the OAM mode supporting …

We propose a photonic crystal fiber with a high refractive index ring, which supports up to
180 orbital angular momentum (OAM) modes without any high order radial modes from 1.5 …