Title :
SBS and MPI suppression in analogue systems with integrated electroabsorption modulator/DFB laser transmitters
Author :
Wilson, G.C. ; Wood, T.H. ; Zyskind, J.L. ; Sulhoff, J.W. ; Johnson, J.E. ; Tanbun-Ek, T. ; Morton, P.A.
Author_Institution :
Lucent Technol., Holmdel, NJ, USA
fDate :
8/1/1996 12:00:00 AM
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 :
cable television; chirp modulation; distributed feedback lasers; electro-optical modulation; electroabsorption; interference suppression; laser beam applications; optical fibre communication; optical noise; optical transmitters; stimulated Brillouin scattering; 1.7 GHz; CATV systems; DFB laser transmitters; MPI suppression; SBS suppression; analogue systems; dithering; electroabsorption modulator; excess noise; integrated modulator/laser transmitters; laser bias current; low-chirp modulation; multipath interference; narrow linewidth sources; stimulated Brillouin scattering;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960966
