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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 2002),
  • paper CThO32

Broadband and Flat Parametric Gain with a Single Pump in a Multi-section Non-linear Fiber Arrangement

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Parametric amplification appears now as a promising solution for fiber WDM systems and opens up a new means to cover actual and future telecommunications windows.1−6 It provides broadband and high gain with low noise features, spectral flexibility, and offers the possibility to achieve simultaneously wavelength conversion. Optical parametric amplifiers (OPA) can directly generate a broad and flat gain region by using two pump lasers’ or multiple fibers with different group-velocity dispersions.4 The latter case has been recently checked against experimental measurements that demonstrate a smoothed gain bandwidth of 75 nm in a two fiber OPA scheme.’ However, a major limitation of OPA performances lies in the high pumping level. For this, highly nonlinear fibers (NLF)1,2,6 have been proved to be the best candidates for fiber OPA. In this work, we propose and theoretically study multi-section OPA configurations based on four NLF’s with different zero-dispersion wavelengths to achieve broadband and flat parametric gain.

© 2002 Optical Society of America

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