'A'
Optimal design of ultrabroadband tellurite fiber Raman amplifier for wavelength-division multiplexing transmission systems
Author(s): Ma J (Ma, Jing), Jiang C (Jiang, Chun), Wu JQ (Wu, Jianqing)  
Source: OPTICAL ENGINEERING    Volume: 47    Issue: 4  Article Number: 045007    Published: APR 2008    
Authors' address:
Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China

'B'
Optimal design for ultra-broad-band amplifier
Author(s): Liu XM, Lee B  
Source: JOURNAL OF LIGHTWAVE TECHNOLOGY    Volume: 21    Issue: 12    Pages: 3446-3455    Published: DEC 2003