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Via Photonics, Secure Communications

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Quantum key distribution as well as emerging techniques that harness temporal cloaking and optomechanical crystals vie for securing optical communications.

HANK HOGAN, CONTRIBUTING EDITOR, [email protected]

Much of the world’s communications travel by light. So, data carried on photons moving through free space or over fiber must be made as secure as possible. Quantum key distribution helps do that. Also, security improvements via temporal cloaking and optomechanical crystals are on the horizon. However, even when these and other new methods are deployed, there will still be gaps in the data armor. For that reason, a layered defense is best, such as the use of multiple levels of encryption, said Gregory Kanter, CEO of Evanston, Ill.-based NuCrypt LLC. The company was founded to...Read full article

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    Published: June 2017
    Glossary
    quantum key distribution
    Quantum key distribution (QKD) is a method of secure communication that utilizes principles from quantum mechanics to establish a shared secret key between two parties, typically referred to as Alice and Bob, while detecting any potential eavesdropping attempts by a third party, commonly known as Eve. The fundamental principle behind QKD is the use of quantum properties, such as the superposition principle and the no-cloning theorem, to enable the distribution of cryptographic keys in a...
    freeform optics
    Freeform optics refers to the design and fabrication of optical surfaces that do not follow traditional symmetric shapes, such as spheres or aspheres. Unlike standard optical components with symmetric and rotationally invariant surfaces, freeform optics feature non-rotationally symmetric and often complex surfaces. These surfaces can be tailored to meet specific optical requirements, offering greater flexibility in designing optical systems and achieving improved performance. Key points about...
    nonlinear optics
    Nonlinear optics is a branch of optics that studies the optical phenomena that occur when intense light interacts with a material and induces nonlinear responses. In contrast to linear optics, where the response of a material is directly proportional to the intensity of the incident light, nonlinear optics involves optical effects that are not linearly dependent on the input light intensity. These nonlinear effects become significant at high light intensities, such as those produced by...
    packet switching
    The transmission of data in groups (packets) of information~comma~ each handled as an aggregate.
    CommunicationsOpticsfiber opticsquantum key distributionLasersfiber laserspulsed laserstelecommunicationsLEDsfreeform opticsFilterstemporal cloakingoptomechanincal crystalsnonlinear opticspacket switchingwavelength multiplexingHank Hogan.Features

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