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Related Experiment Video

Updated: Jun 12, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Published on: May 30, 2014

Quantum well optical tri-state devices.

A L Lentine, S J Hinterlong, T J Cloonan

    Applied Optics
    |June 22, 2010
    PubMed
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    We developed quantum well tri-state logic devices for optical buses. These devices enable efficient data transmission by allowing active on, active off, or disabled states, minimizing bus conflicts.

    Area of Science:

    • Optoelectronics
    • Quantum Information Science
    • Integrated Photonics

    Background:

    • Electronic buses face limitations in speed and scalability.
    • Optical interconnects offer potential for higher bandwidth and reduced latency.
    • Tri-state logic is crucial for efficient bus management in electronic systems.

    Purpose of the Study:

    • To demonstrate quantum well tri-state logic devices for optical bus architectures.
    • To explore methods for generating tri-state data in optical systems.
    • To analyze the scalability of optical tri-state buses.

    Main Methods:

    • Fabrication and characterization of tri-state quantum well modulators.
    • Implementation of optical tri-state self-electrooptic effect devices.

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  • Demonstration of a two-device optical bus system.

    • Main Results:

    • Successful demonstration of quantum well tri-state logic devices.
    • Validation of two distinct methods for optical tri-state data generation.
    • Experimental setup of a functional two-device optical bus.

    Conclusions:

    • Quantum well tri-state devices are viable for optical bus applications.
    • The proposed optical bus architecture offers a scalable solution for optical interconnects.
    • Limitations on the number of connectable devices were identified and discussed.