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Ti:LiNbO(3) waveguide electro-optic beam combiner.

L L Buhl, R C Alferness

    Optics Letters
    |September 11, 2009
    PubMed
    Summary
    This summary is machine-generated.

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    We developed a low-loss titanium-indium-lithium-niobate (Ti:LiNbO3) waveguide circuit. This device combines two coherent light beams into one with voltage control, only experiencing propagation losses.

    Area of Science:

    • Photonics and optical engineering
    • Materials science for optical devices

    Background:

    • Integrated optical circuits are crucial for optical signal processing.
    • Efficient beam combination is essential for various photonic applications.

    Purpose of the Study:

    • To demonstrate a novel waveguide circuit for combining coherent optical beams.
    • To achieve low-loss beam combination using voltage control.

    Main Methods:

    • Fabrication of a titanium-indium-lithium-niobate (Ti:LiNbO3) waveguide circuit.
    • Utilizing voltage control to manage the phase and amplitude of input beams.
    • Characterization of the circuit's performance at a wavelength of 1.55 micrometers.

    Main Results:

    • Achieved low-loss combination of two mutually coherent input beams.

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  • Demonstrated control over relative amplitude and phase of the input beams.
  • The circuit exhibited only propagation losses, indicating high efficiency.

    • Conclusions:

    • The developed Ti:LiNbO3 waveguide circuit offers an efficient method for coherent beam combination.
    • This technology has potential applications in optical communications and signal processing.
    • Voltage-controlled beam combination in integrated photonics is feasible with minimal loss.