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Related Concept Videos

Linear Approximation in Frequency Domain01:26

Linear Approximation in Frequency Domain

Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
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Chaos in a conventional nonlinear coupler.

Y Chen, A W Snyder

    Optics Letters
    |September 18, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Conventional optical-fiber directional couplers show chaotic power splitting with inclined input polarization. This phenomenon occurs due to the isotropic material properties of the coupler.

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    Area of Science:

    • Optics and Photonics
    • Fiber Optic Components

    Background:

    • Conventional optical-fiber directional couplers are fundamental components in photonic integrated circuits.
    • Isotropic materials in couplers can lead to unpredictable optical behavior.

    Purpose of the Study:

    • To investigate the phenomenon of chaotic power splitting in optical-fiber directional couplers.
    • To understand the influence of input polarization on power distribution.

    Main Methods:

    • Analysis of optical power splitting in isotropic directional couplers.
    • Theoretical modeling of polarization-dependent behavior.

    Main Results:

    • Demonstration of chaotic power splitting when input polarization is not aligned with coupler axes.
    • Identification of polarization as a critical factor in coupler performance.

    Conclusions:

    • Input polarization significantly impacts power splitting in conventional optical-fiber directional couplers.
    • Chaotic behavior arises from the interaction of polarization and coupler geometry.