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We present the first demonstration of an optical sampling system, using the optical Kerr effect in a chip-scale device, enabling combined capability for femtosecond resolution and broadband signal wavelength tunability. A temporal resolution <500 fs is achieved using four-wave mixing in a 7-cm-short chalcogenide planar waveguide. The use of a short length, dispersion-shifted waveguide with ultrahigh...
We demonstrate a photonic-chip-based optical sampling system with temporal resolution <500-fs, making use of a 7-cm short chalcogenide planar waveguide. Its high nonlinearity and dispersion-shifted design enables broadband operation without compromising the achieved resolution.
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