Mode division multiplexing (MDM)–using a multimode optical fiber's N spatial modes as data
channels to transmit N independent data streams–has received interest as it can potentially …

We take stock of the progress that has been made into developing ultrathin endoscopes
assisted by wave front shaping. We focus our review on multicore fiber-based lensless …

Vortex beams (VBs), possessing a helical phase front and carrying orbital angular
momentum (OAM), have attracted considerable attention in optical communications for their …

50-μm-diameter graded-index core multimode fibers can be adapted to mode-division-
multiplexed transmissions that use multiple-input-multiple-output digital signal processing …

We report an all-fiber mode division multiplexer formed with cascaded mode selective
couplers with significantly broadened bandwidth potentially spanning S, C and L band. This …

We propose cascaded mode-division-multiplexing and time-division-multiplexing passive
optical network (MDM-TDM-PON) based on low mode-crosstalk few-mode fiber (FMF) and …

Trapped in the stringent adiabatic transmission condition of high-order modes, low-loss
fused biconical taper mode selective coupler (FBT-MSC) has long been challenging to …

Recently, mode-division multiplexing (MDM) has been investigated in transmission systems
and optical access networks for capacity enhancement. In this paper, recent progress in …

We investigated the performance of mode diversity reception of a polarization-division-
multiplexed (PDM) signal with few-mode-fiber (FMF) coupling for high-speed free-space …

Mode-division multiplexers (MDMUXs) play a pivotal role in enabling the manipulation of an
arbitrary optical state within few-mode fibers, offering extensive utility in the fields of mode …