Influence of unpumped EDF position and a
✍
Junqiang Sun
📂
Article
📅
2003
🏛
John Wiley and Sons
🌐
English
⚖ 165 KB
## Abstract Large gain enhancement in a novel long‐wavelength band (L‐band) erbium‐doped fiber amplifier (EDFA) is demonstrated by the cascade of pumped and unpumped erbium‐doped fibers. By utilizing an injected conventional wavelength band (C‐band) laser as an auxiliary pump signal, an approximate