To improve the transmission capacity and integration level of future optical interconnect
systems, we present a communication scheme using orbital angular momentum (OAM) array …

Protecting confidential data is a major worldwide challenge. Classical cryptography is fast
and scalable, but is broken by quantum algorithms. Quantum cryptography is unclonable …

We design, fabricate, and characterize two types of low-loss weakly guiding ring-core fibers
(RCFs) supporting orbital angular momentum (OAM) modes. The ring core and cladding …

On-chip optical interconnect has been widely accepted as a promising technology to realize
future large-scale multiprocessors. Mode-division multiplexing (MDM) provides a new …

Wireless technology is the strongest contender for catering for the 5G backhaul (BH)
stipulated performance, where optical fiber is unavailable. In the presence of ultra-dense …

By mapping traditional amplitude modulation to spatial modulation and employing adaptive
optics compensation technique, we propose and experimentally demonstrate a high-speed …

The capacity in space division multiplexing (SDM) systems with coupled channels is
fundamentally limited by mode-dependent loss (MDL) and mode-dependent gain (MDG) …

Switching and routing are critical functionalities for a reconfigurable bandwidth-dense
optical network, and great efforts had been made to accommodate mode-division …

The concepts of spatial-division multiplexing (SDM) technology were first proposed in the
telecommunications industry as an indispensable solution to reduce the cost-per-bit of …

We establish the concept of the density of the optical degrees of freedom that may be
applied to any photonics based system. As a key example of this versatile approach we …