Spectral translation unlocks 2-μm window

Article Engineering, Electrical & Electronic

Opportunities and Challenges for Long-Distance Transmission in Hollow-Core Fibres

Pierluigi Poggiolini et al.

Summary: The loss of hollow-core NANF has approached that of standard SMF, while non-linear effects are significantly lower. NANF has a wider usable bandwidth and faster propagation speed, potentially enabling significant throughput gains in optical communication systems.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2022)

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Editorial Material Engineering, Electrical & Electronic

Guest Editorial: Multi-Band Optical Networks

Nicola Sambo et al.

Summary: The papers in this special section focus on multi-band optical networks and introduce the key challenges, trends, and innovations. With currently deployed networks reaching saturation in capacity, alternative solutions are needed to meet the increasing demand for bandwidth. Utilizing other optical bands can upgrade networks and postpone the installation of new fibers.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2022)

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Article Multidisciplinary Sciences

Super-broadband on-chip continuous spectral translation unlocking coherent optical communications beyond conventional telecom bands

Deming Kong et al.

Summary: Researchers have developed an on-chip continuous spectral translation method that leverages existing commercial transceivers to unlock potential new wavelength bands. Using AlGaAsOI nanowaveguides as spectral translators, they demonstrated the potential for coherent transmission in the 2-mu m band and achieved high-speed transmission over a 1.15-km hollow-core fiber.

NATURE COMMUNICATIONS (2022)

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Review Chemistry, Analytical

AlGaAs Nonlinear Integrated Photonics

Ehsan Mobini et al.

Summary: This review provides a comprehensive overview of AlGaAs nonlinear waveguide platforms, including their geometries, nonlinear optical performances, and measured values and wavelength dependencies of their effective nonlinear coefficients. The state-of-the-art achievements in the field, such as tunable wavelength converters, on-chip frequency-comb generation, and ultra-broadband on-chip supercontinuum generation, are highlighted. The potential applications of AlGaAs nonlinear functional devices, such as all-optical signal processing in optical communication networks and integrated quantum photonic circuits, are also discussed.

MICROMACHINES (2022)

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Article Multidisciplinary Sciences

Peta-bit-per-second optical communications system using a standard cladding diameter 15-mode fiber

Georg Rademacher et al.

Summary: The research found that high-capacity data transmission can be achieved in multi-mode fibers through space-division multiplexing technology, leveraging the high spatial channel density of multi-mode fibers where signals share the same fiber core. By combining multiple practical multiplexing technologies, it is possible to achieve peta-bit-per-second transmission in standard-diameter multi-mode fibers.

NATURE COMMUNICATIONS (2021)

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Article Optics