Title :
4.2 million subscribers with cascaded EDFA-distribution system for 35 TV AM-VSB channels
Author :
Bulow, Henning ; Fritschi, R. ; Heidemann, R. ; Junginger, B. ; Krimmel, H.G.
Author_Institution :
Alcatel SEL AG Res. Center, Stuttgart, Germany
Abstract :
With optimised design erbium doped fibre amplifiers, single 980 nm copropagating pump scheme, single isolator and no optical filter, a four cascaded optical distribution system carrying 35 TV AM-VSB channels is presented with a budget of 89 dB and a splitting ratio of 4.2 million.
Keywords :
cable television; fibre lasers; laser beam applications; optical links; optical pumping; telecommunication channels; 980 nm; AM-VSB channels; Er doped fibre amplifiers; cascaded EDFA-distribution system; copropagating pump scheme; optical distribution system; single isolator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921171
