We report, to the best of our knowledge, the first all-fiber frequency-resolved optical gating (FROG) device based on cross-phase modulation in chalcogenide glass. The amplitude and phase of pulses as short as 390 fs at femtojoule energy levels are accurately characterized without direction-of-time ambiguity in the retrieved pulse. A measurement sensitivity of 18 mW is achieved from the strong nonlinearity of a 10 cm long chalcogenide microwire.
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| http://dx.doi.org/10.1364/OL.43.004771 | DOI Listing |
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