Abstract

We demonstrate an in situ approach for the fabrication of all-fiber wavelength converters with a wavelength offset that is both far-detuned and precisely engineered. Such wavelength converters are fabricated using the parametric gain of ${\mathrm{A}}_2{\mathrm{Se}}_3$ microwires and finely tuned from successive adjustments of microwire diameter along with real-time monitoring. Wavelength conversion is achieved from a pump at a wavelength of 1.938 μm to any far-detuned idler within the spectral range of 2.347–2.481 μm, resulting in a detuning of 27.0–33.9 THz with a wavelength offset precision within 3.1 THz.

© 2019 Optical Society of America

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