'A'
Experimental research of wideband and gain-flattened hybrid Raman/erbium-doped fiber amplifier
Author(s): Li YN (Li, Yongnan), Guo WG (Guo, Wengang), Tu CH (Tu, Chenghou), Lei T (Lei, Ting), Ha T (Ha, Te), Wei D (Wei, Dal), Lu FY (Lu, Fuyun)  
Source: OPTICAL ENGINEERING    Volume: 46    Issue: 12  Article Number: 125004    Published: DEC 2007  
Authors' address:
Nankai Univ, Inst Phys, Tianjin 30071, 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