High-fidelity spatial mode transmission through a 1-km-long multimode fiber via vectorial time reversal
arXiv:2003.09883 · doi:10.1038/s41467-021-22071-w
Abstract
The large number of spatial modes supported by standard multimode fibers is a promising platform for boosting the channel capacity of quantum and classical communications by orders of magnitude. However, the practical use of long multimode fibers is severely hampered by modal crosstalk and polarization mixing. To overcome these challenges, we develop and experimentally demonstrate a vectorial time reversal technique, which is accomplished by digitally pre-shaping the wavefront and polarization of the forward-propagating signal beam to be the phase conjugate of an auxiliary, backward-propagating probe beam. Here, we report an average modal fidelity above 80% for 210 Laguerre-Gauss and Hermite-Gauss modes by using vectorial time reversal over an unstabilized 1-km-long fiber. We also propose a practical and scalable spatial-mode-multiplexed quantum communication protocol over long multimode fibers to illustrate potential applications that can be enabled by our technique.
arXiv commentSupplementary Information is included
References in corpus (33)
- Quantum Cryptography
- The Security of Practical Quantum Key Distribution
- Gaussian Quantum Information
- Decoy State Quantum Key Distribution
- Overcoming the rate-distance barrier of quantum key distribution without using quantum repeaters
- Experimental demonstration of long-distance continuous-variable quantum key distribution
- Measurement device independent quantum key distribution over 404 km optical fibre
- Secure quantum key distribution over 421 km of optical fiber
- High-dimensional quantum cryptography with twisted light
- Quantum teleportation and entanglement distribution over 100-kilometre free-space channels
- High-rate quantum cryptography in untrusted networks
- Free-space quantum key distribution by rotation-invariant twisted photons
- Advances in InGaAs/InP single-photon detector systems for quantum communication
- Optical solitons in graded-index multimode fiber
- Provably-Secure and High-Rate Quantum Key Distribution with Time-Bin Qudits
- Higher-dimensional orbital angular momentum based quantum key distribution with mutually unbiased bases
- High-fidelity multimode fibre-based endoscopy for deep-brain in vivo imaging
- Conservation of orbital angular momentum in air core optical fibers
- Rapid Generation of Light Beams Carrying Orbital Angular Momentum
- Quantum key distribution for 10 Gb/s dense wavelength division multiplexing networks
- Quantum information processing with space-division multiplexing optical fibres
- Sorting photons by radial quantum number
- Complete Polarization Control in Multimode Fibers with Polarization and Mode Coupling
- Time reversed optical waves by arbitrary vector spatiotemporal field generation
- Boosting the secret key rate in a shared quantum and classical fibre communication system
- Characterising optical fibre transmission matrices using metasurface reflector stacks for lensless imaging without distal access
- Genuine time-bin-encoded quantum key distribution over a turbulent depolarizing free-space channel
- Fiber transport of spatially entangled photons
- Using all transverse degrees of freedom in quantum communications based on a generic mode sorter
- Hermite-Gaussian mode sorter
- Spatio-temporal correlations in multimode fibers for pulse delivery
- Control of the temporal and polarization response of a multimode fiber
- Fast Generation and Detection of Spatial Modes of Light using an Acousto-Optic Modulator
Cited by in corpus (10)
- Controlling light propagation in multimode fibers for imaging, spectroscopy and beyond
- Securing Data in Multimode Fibers by Exploiting Mode-Dependent Light Propagation Effects
- Using an acousto-optic modulator as a fast spatial light modulator
- Suppression of Nonlinear Optical Rogue Wave Formation Using Polarization-Structured Beams
- Shaping Single Photons through Multimode Optical Fibers using Mechanical Perturbations
- Implementation of space-division multiplexed entanglement-based quantum cryptography over multicore fiber
- Single Plane Spatial Mode Sorter
- Extraction of Bend-Resolved Modal Basis in Deformed Multimode Fiber
- Spatial Mode Encoding for Quantum Key Distribution: From Hundreds to Thousands of Modes
- Reduced State Embedding for Error Correction in Quantum Cryptography