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Measuring the longitudinal distribution of four-wave mixing efficiency in dispersion-shifted fibers

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4 Author(s)
Onaka, H. ; Technol. Res. Div., Fujitsu Labs. Ltd., Kawasaki, Japan ; Otsuka, K. ; Miyata, H. ; Chikama, T.

We measured and analysed four-wave mixing (FWM) efficiency and fluctuation along the actual dispersion-shifted fibers (DSF's). In the short, 1.1-km DSF, our results agreed with theory, and we also obtained zero-dispersion wavelength /spl lambda//sub 0/, zero-dispersion slope dD/d/spl lambda/, and nonlinear refractive index n/sub 2/ simultaneously. In the long, 23-km, DSF, a high FWM efficiency was observed in the wide wavelength region, due to the longitudinal zero-dispersion wavelength distribution. The fluctuation range was about 3.5 nm and the maximum slope about 1.1 km/nm.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:6 ,  Issue: 12 )