SBS and MPI suppression in analogue systems withintegrated electroabsorption modulator/DFB laser transmitters
- 1 August 1996
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 32 (16) , 1502-1504
- https://doi.org/10.1049/el:19960966
Abstract
The performance of analogue CATV systems using narrow linewidth sources and low-chirp modulation is limited by low power-thresholds for stimulated Brillouin scattering (SBS) and excess noise from multipath interference (MPI). Using a low-chirp linearised integrated DFB laser/electroabsorption modulator as a transmitter, the authors have increased the SBS threshold by 5 dB to +13.6 dBm fibre launch power and suppressed MPI by dithering the laser bias current at 1.7 GHz.Keywords
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