Parametric wavelength conversion with bidirectional utilization of a multiple QPM device

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Abstract

<jats:p>A configuration for wavelength conversion and optical amplification by parametric interaction using a nonlinear optical device is proposed. It enables pump generation through second harmonic generation (SHG), difference frequency generation (DFG), and optical parametric amplification (OPA) using a multiple-quasi-phase-matched (M-QPM) LiNbO<jats:sub>3</jats:sub> waveguide in a bidirectional manner. Wavelength conversion for the 1.4–1.6 µm band is experimentally demonstrated. In addition, it is demonstrated that the parametric gain band can be changed using various detunings between the pump and QPM wavelengths used for the DFG/OPA process. The proposed method would be useful for enabling high-capacity optical transmission outside the 1550-nm band.</jats:p>

Journal

  • Optics Express

    Optics Express 29 (15), 22900-, 2021-07-06

    Optica Publishing Group

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