Influence of unpumped EDF position and auxiliary pump wavelength on L-band EDFA performance

✍ Scribed by Junqiang Sun

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 165 KB
• Volume: 37
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.10834

✦ Synopsis

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 approximately 7.5‐dB gain improvement is achieved. The EDFA performances are analyzed and explained in terms of C‐band wavelength, and pumped and unpumped erbium‐doped fiber sequence. The results indicate that there is a tradeoff between gain enhancement and noise figure reduction. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 95–98, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10834