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Double-pumped fiber optical parametric amplifier with flat gain over 47-nm bandwidth using a conventional dispersion-shifted fiber

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3 Author(s)
Chavez Boggio, J.M. ; Opt. & Photonics Res. Center, Inst. de Fisica ''Gleb Wataghin'' Unicamp, Campinas, Brazil ; Marconi, J.D. ; Fragnito, H.L.

We investigate the performance of conventional dispersion-shifted fibers (DSFs) as nonlinear medium in double-pumped fiber optical parametric amplifiers (2P-FOPAs). We report on high gain (37 dB) with low ripple (±1.5 dB) over a 47-nm bandwidth using these fibers. We show that the 2P-FOPA average gain and the gain uniformity are limited by longitudinal variations of the zero dispersion wavelength and by polarization-mode dispersion. We demonstrate that 2P-FOPAs constructed with DSFs exhibit negligible crosstalk even for high gains (40 dB) and large output signal powers (12.5 dBm) in a ten-channel system.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 9 )