Multi-input multi-output (MIMO) digital signal processing (DSP) for mode-division
multiplexing (MDM) may have high complexity, owing to a plurality of modes and a …

Typical multi-mode fibers exhibit strong intra-group mode coupling and weak inter-group
mode coupling. Mode scramblers can be inserted at periodic intervals to enhance inter …

In this work, we demonstrate the measurement of the Brillouin gain spectra of vector modes
in a few-mode fiber for the first time using a simple heterodyne detection technique. A …

A method based on low coherence off-axis digital holography is proposed to measure the
chromatic dispersion of few-mode fiber (FMF). A measurement system based on the Mach …

Chromatic dispersion (CD) in optical fibers results in the broadening and overlap** of
transmitted lights, and thus reduces the capacity of information transmission and increases …

We propose a measurement method based on time-domain cross-correlation technique,
combined with the cut-back methods, enabling the measurement of group refractive indices …

A microwave-photonic technique for measuring dispersion characteristics of few-mode fibers
is proposed and experimentally demonstrated. We extract these dispersion parameters by …

In this Letter, we propose a simple and high-precision differential modal group delay
(DMGD) characterization method for few-mode fibers (FMF) by using the frequency …

Mode-division multiplexing communication based on few-mode fibers (FMFs) is the most
competitive scheme to address the bandwidth exhaustion in single-mode fibers. The …

In this paper, we propose and experimentally demonstrate a novel method for
simultaneously measuring mode-dependent loss (MDL) and differential modal group delay …