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WDM-Based Passive Optical Network Upstream Transmission at 1.25 Gb/s Using Fabry–PÉrot Laser Diodes Injected With Spectrum-Sliced, Depolarized, Continuous-Wave Supercontinuum Source

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4 Author(s)
Ju Han Lee ; Photonics Res. Center, KIST, Seoul ; Chul Han Kim ; Young-Geun Han ; Sang Bae Lee

We experimentally demonstrate the use of low-cost Fabry-Perot laser diodes (FP-LDs) injected with spectrum-sliced beams from our proposed, depolarized, high-power, continuous-wave (CW) supercontinuum (SC) for upstream transmission in a wavelength-division-multiplexed (WDM) passive optical network. A ~500-mW CW SC with a ~130-nm bandwidth is obtained from a narrowband, amplified spontaneous emission (ASE) seed of a pumped erbium fiber by nonlinear effects such as modulation instability and stimulated Raman scattering in a highly nonlinear optical fiber. Through measurements of relative intensity noise at various wavelengths, it is shown that our spectrum-sliced SC offers the same performance as the spectrum-sliced erbium ASE. Error-free 25-km upstream transmission for six WDM signals generated from the CW SC-injected FP-LDs, is readily achieved at 1.25 Gb/s

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 20 )