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Related Concept Videos

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A three-phase AC generator has a rotor with a rotating magnet placed within the stator mounted with the stationary three-phase winding to generate three-phase voltages via mutual induction. These windings are evenly distributed around the inner circumference of the stator and are arranged 120 electrical degrees apart. Three-phase stator windings consist of three separate coils or groups of coils, known as phases, each connected in Y (star) configuration or Delta configuration.
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Related Experiment Video

Updated: Jun 13, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

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Published on: June 8, 2018

Electrooptic tuning of critically phase matched second harmonic generators.

B P Boczar, J W Scott, J F Geer

    Applied Optics
    |May 11, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Electrooptic tuning of critically phase matched second harmonic generators allows for angular shifts up to 1.5 mrad without losing conversion efficiency. These findings align with theoretical predictions and suggest new applications.

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    Area of Science:

    • Nonlinear optics
    • Quantum optics
    • Laser physics

    Background:

    • Second harmonic generation (SHG) is a key nonlinear optical process.
    • Critical phase matching (CPM) is essential for efficient SHG.
    • Electrooptic tuning offers a method to control SHG parameters.

    Purpose of the Study:

    • To investigate the electrooptic tuning of critically phase matched second harmonic generators.
    • To experimentally verify theoretical predictions for electrooptic tuning in SHG.
    • To explore potential applications of this tunable SHG technique.

    Main Methods:

    • Theoretical modeling of electrooptic effects on phase matching.
    • Experimental setup for electrooptic tuning of SHG crystals.
    • Measurement of angular tuning range and conversion efficiency.

    Main Results:

    • Achieved angular shifts of up to 1.5 mrad using electrooptic tuning.
    • Demonstrated no degradation in conversion efficiency during tuning.
    • Experimental results show good agreement with theoretical predictions.

    Conclusions:

    • Electrooptic tuning is an effective method for controlling the output angle of SHG.
    • This technique preserves high conversion efficiency.
    • Potential applications in tunable laser systems and optical signal processing exist.