Terabit-Scale Orbital Angular Momentum Mode Division Multiplexing in Fibers

  title={Terabit-Scale Orbital Angular Momentum Mode Division Multiplexing in Fibers},
  author={Nenad Bozinovic and Yang Yue and Yongxiong Ren and Moshe Tur and Poul Kristensen and Hao Huang and Alan E. Willner and Siddharth Ramachandran},
  pages={1545 - 1548}
A Twist on the Capacity Crunch The rate at which data can be transmitted down optic fibers is approaching a limit because of nonlinear optical effects. Multiplexing allows data to be encoded in different modes of light such as polarization, wavelength, amplitude, and phase and to be sent down the fibers in parallel. Optical angular momentum (OAM) can provide another degree of freedom whereby the photons are given a well-defined twist or helicity. Bozinovic et al. (p. 1545) were able to transmit… 

Carrying Data on the Orbital Angular Momentum of Light

The short length and high capacity requirements for data center and fronthaul links make them well suited for exploitation of orbital angular momentum (OAM) of light in spatial multiplexing.

Massive individual orbital angular momentum channels for multiplexing enabled by Dammann gratings

Data transmission rates in optical communication systems are approaching the limits of conventional multiplexing methods. Orbital angular momentum (OAM) in optical vortex beams offers a new degree of

Integrated all-optical wavelength and polarization conversion of orbital angular momentum carrying modes.

A novel versatile-designed integrated optical device with Ycut ridge lithium niobate photonic wire configuration that acts as a wavelength or polarization converter for data modulated on OAM and its compatible operation in commercial wireless and fiber-based polarization-multiplexed WDM communication systems is proposed.

Enhanced spin orbit interaction of light in highly confining optical fibers for mode division multiplexing

An interaction between the spin and orbital angular momenta of light which enables propagation of 24 states in a single optical fiber with low cross-talk, even in the presence of fiber perturbation is described.

Novel fiber-optic geometries for fast quantum communication

Recent experiments have generated great interest in combined wavlength (WDM) and spatial (SDM) divison multiplexing using optical angular momentum (OAM) at data rates orders of magnitude better than

Optical communications beyond orbital angular momentum

Current optical communication technologies are predicted to face a bandwidth capacity limit in the near future. The nature of the limitation is fundamental rather than technological and is set by

Design and modeling of optical fibers for spatial division multiplexing using the orbital angular momentum of light

The always increasing need for digital data bandwidth pushes the development of emerging technologies to increase network capacity, especially for optical fiber infrastructures. Among those

Photonic lantern broadband orbital angular momentum mode multiplexer.

Through novel design of an optical fiber device referred to as a photonic lantern, for the first time it is demonstrated the simultaneous generation and multiplexing of OAM modes with low loss and over the broadest spectral range to date (550 nm).

Optimal conditions for multiplexing information into ring-core optical fibers

In optical communications, space-division multiplexing is a promising strategy to augment the fiber network capacity. It relies on modern fiber designs that support the propagation of multiple

Exclusive generation of orbital angular momentum modes in parity-time symmetry fiber gratings

Orbital angular momentum (OAM) modes in fibers process great potentials in providing, from a higher dimension, extra communication channels to meet the ever-growing bandwidth requirement for modern



Excitation of Orbital Angular Momentum Resonances in Helically Twisted Photonic Crystal Fiber

It is shown that adding chirality to the cladding surrounding the core may provide another route to manipulating the transmission of light, and an effect that appears in continuously twisted photonic crystal fiber is reported.

Filling the Light Pipe

At this year's Optical Fiber Communication Conference (OFC 2010), several groups reported results within a factor of ∼2 of the ultimate capacity limits of existing optical fiber technology.

Capacity Trends and Limits of Optical Communication Networks

The history of traffic and capacity growth and extrapolations for the future, and fibers supporting multiple spatial modes, including multimode and multicore fibers, and the role of digital processing techniques are recounted.

Transfer of orbital angular momentum from a stressed fiber-optic waveguide to a light beam.

A stressed fiber-optic waveguide is used to impart orbital angular momentum to a Hermite-Gaussian laser mode that has an annular intensity profile and a well-defined azimuthal phase dependence and the phase structure of the beam is confirmed by observing the interference pattern produced between it and a plane wave.

Terabit free-space data transmission employing orbital angular momentum multiplexing

Researchers demonstrate the ability to multiplex and transfer data between twisted beams of light with different amounts of orbital angular momentum — a development that provides new opportunities

Orbital Angular Momentum (OAM) based Mode Division Multiplexing (MDM) over a Km-length Fiber

Abstract (40-Word Limit): We demonstrate the first MDM scheme using OAM states over 1.1 km of fiber enabled by a SLM-based mux/de-mux scheme and a specialty fiber. Subsystem was used to successfully

Control of orbital angular momentum of light with optical fibers.

A new (to the authors' knowledge) method to determine the modal content of the fiber is proposed and high purity of the desired vortex state is demonstrated (97% after 20 m, even after bends and twists).

Observation of Orbital Angular Momentum Transfer between Acoustic and Optical Vortices in Optical Fiber

Acousto-optic interaction in optical fiber is examined from the perspective of copropagating optical and acoustic vortex modes. Calculation of the acousto-optic coupling coefficient between different

A comparison between different PMD compensation techniques

We quantify the benefits of using different techniques for compensation of polarization mode dispersion (PMD) in fiber-optic communication systems by means of numerical simulations. This is done both

Efficient sorting of orbital angular momentum states of light.

A method to efficiently sort orbital angular momentum states of light using two static optical elements that perform a Cartesian to log-polar coordinate transformation, converting the helically phased light beam corresponding to OAM states into a beam with a transverse phase gradient.