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0.5-Tb/s eye-diagram measurement by optical sampling using XPM-induced wavelength shifting in highly nonlinear fiber

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6 Author(s)
Jie Li ; Dept. of Microtechnology & Nanoscience, Chalmers Univ. of Technol., Gothenburg, Sweden ; Westlund, M. ; Sunnerud, H. ; Olsson, B.
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In this letter, we report on a novel all-optical sampling scheme using cross-phase modulation-induced wavelength shifting and optical filtering. Up to 500-Gb/s optical signal eye-diagram measurements have been demonstrated for the first time with a temporal resolution of 0.7 ps. Signal operational wavelength range covering basically the whole erbium-doped fiber amplifier gain range (1535-1569 nm) with temporal resolutions equal to or less than 1 ps was also demonstrated in the experiment. These results show that the sampling system is suitable for directly monitoring and evaluating ultrahigh bit-rate optical time-division multiplexed data at or above 160 Gb/s.

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Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 2 )