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Related Experiment Video

Updated: Jun 22, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Variable optical delay using population oscillation and four-wave-mixing in semiconductor optical amplifiers.

Hui Su, Piotr Kondratko, Shun L Chuang

    Optics Express
    |June 12, 2009
    PubMed
    Summary
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    Researchers achieved a 160 ps variable optical delay using semiconductor optical amplifiers, controllable electrically and optically. This advancement is crucial for high-speed optical signal processing and telecommunications.

    Area of Science:

    • Optoelectronics
    • Photonics
    • Semiconductor Devices

    Background:

    • Variable optical delay is essential for optical signal processing.
    • Semiconductor optical amplifiers (SOAs) offer potential for integrated optical delay lines.

    Purpose of the Study:

    • To investigate and achieve variable optical delay in semiconductor optical amplifier/absorber waveguides.
    • To develop an analytical model for optical delay and optimize the delay-bandwidth product.

    Main Methods:

    • Utilized population oscillation (PO) and nearly degenerate four-wave-mixing (NDFWM) effects in InGaAsP/InP waveguides.
    • Experimentally demonstrated electrically and optically controllable optical delay.
    • Developed and validated an analytical model against experimental data.

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    Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
    15:58

    Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

    Published on: December 3, 2013

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    Last Updated: Jun 22, 2026

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
    09:23

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

    Published on: May 30, 2014

    Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
    15:58

    Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

    Published on: December 3, 2013

    Main Results:

    • Achieved a variable optical delay ranging from 0 to 160 ps.
    • Demonstrated a 1.0 GHz bandwidth for the optical delay.
    • The analytical model showed good agreement with experimental results.

    Conclusions:

    • Semiconductor optical amplifiers are suitable for creating controllable optical delay lines.
    • The developed model provides design criteria for optimizing the delay-bandwidth product in SOAs.
    • This research contributes to advancements in high-speed optical signal processing.