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Tunable fiber-optic parametric oscillator.

D K Serkland, P Kumar

    Optics Letters
    |December 12, 2007
    PubMed
    Summary
    This summary is machine-generated.

    We demonstrate a tunable optical parametric oscillator using a nonlinear fiber Sagnac interferometer. This device allows signal pulse tuning over a 40-nm range, offering versatile light generation.

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    Area of Science:

    • Nonlinear optics
    • Fiber optics
    • Laser physics

    Background:

    • Optical parametric oscillators (OPOs) are crucial for generating tunable laser light.
    • Nonlinear fiber interferometers offer unique properties for optical amplification.
    • Sagnac interferometers provide stable and efficient configurations for nonlinear optical processes.

    Purpose of the Study:

    • To report the operation of a tunable optical parametric oscillator.
    • To utilize a nonlinear-fiber Sagnac interferometer as a parametric amplifier.
    • To demonstrate wide-bandwidth tuning of output signal pulses.

    Main Methods:

    • Employing a nonlinear-fiber Sagnac interferometer with dispersion-shifted fiber (zero dispersion at 1538 nm).
    • Synchronous pumping with 7.7-ps pulses at 1539 nm.

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  • Configuring a singly resonant, phase-insensitive parametric oscillator using a bandpass filter.

    • Main Results:

    • Achieved tunable output signal pulses over a 40-nm range centered on the pump wavelength.
    • Demonstrated wide bandwidth of parametric gain.
    • Successfully decoupled pump wave from the oscillator cavity.

    Conclusions:

    • The developed tunable optical parametric oscillator offers versatile wavelength tuning capabilities.
    • The use of a nonlinear-fiber Sagnac interferometer is effective for parametric amplification in OPOs.
    • Potential for similar devices operating at other wavelengths, such as 1310 nm for standard telecommunication fiber.