Title :
High-density WDM systems using post-transmitter fibre Raman amplifier to relax Raman crosstalk limitation
Author :
Kao, Min-Sheng ; Wu, Junyong
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
The limitation of transmission distance imposed by Raman crosstalk in a high-density WDM system is numerically analysed. The authors introduce a post-transmitter fibre Raman amplifier to relax this limitation. The examples show that the limitation can be relaxed by 7 dB and 15 dB amplifier gain is obtainable. In addition, a much lower transmitted power level can be used to obtain the maximum transmission distance.
Keywords :
Raman lasers; crosstalk; frequency division multiplexing; nonlinear optics; optical communication; optical fibres; optical links; solid lasers; stimulated Raman scattering; 15 dB; Raman crosstalk limitation; amplifier gain; fibre Raman amplifier; high-density WDM system; maximum transmission distance; optical fibre links; post-transmitter amplifier; transmitted power level-reduction;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890973
