Bidirectional 10-channel 2.5 Gbit/s WDM transmissionover 250 km using76 nm (1531–1607 nm) gain-band bidirectional erbium-doped fibre amplifiers
- 6 November 1997
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 33 (23) , 1967-1968
- https://doi.org/10.1049/el:19971342
Abstract
The widest, seamless, 76 nm (1531–1607 nm) 3 dB gain-band bidirectional amplifier is realised by combining an erbium-doped fluoride fibre amplifier (1531–1562 nm) and a gain-flattened erbium-doped silicate fibre amplifier (1562–1607 nm) in a novel configuration of gain-band separation between upstream and downstream signals. Bidirectional 10-channel WDM transmission at 2.5 Gbit/s over a 250 km conventional singlemode fibre is successfully demonstrated using our amplifiers as two bidirectional repeaters.Keywords
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