Title :
Extinction ratio degradation in Raman amplified optical communication system
Author :
Kao, M.S. ; Chi, Song
Author_Institution :
Center of Telecommun. Res., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
7/4/1991 12:00:00 AM
Abstract :
The extinction ratio of a Raman amplified optical fibre system is investigated. The results show that serious extinction ratio degradation occurs at high pump level. Because the Raman gain increases with pump power, there exists a trade-off between the extinction ratio and the achievable amplifier gain. A design rule to estimate the suitable pump power is presented.
Keywords :
Raman lasers; fibre lasers; optical communication equipment; Raman amplified optical fibre system; amplifier gain; design rule; extinction ratio degradation; high pump level; pump power;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910775
