67 cm long bismuth-based erbium doped fiber amplifier with wideband operation

✍ Scribed by X.S. Cheng; B.A. Hamida; A.W. Naji; H. Ahmad; S.W. Harun

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 83 KB
• Volume: 8
• Category: Article
• ISSN: 1612-2011
• DOI: 10.1002/lapl.201110061

✦ Synopsis

In this paper, we demonstrate a wideband Bismuthbased erbium doped fiber amplifier (Bi-EDFA) using two pieces of bismuth-based erbium-doped fiber (Bi-EDF) with a total length of 67 cm as gain media in a double pass parallel configuration. Both Bi-EDFs have an erbium ion concentration of 6300 ppm. Compared to conventional silica-based erbiumdoped fiber amplifier (Si-EDFA) with the same amount of erbium ions, the Bi-EDFA provides a higher attainable gain as well as a greater amplification bandwidth, which ranging from 1525 to 1620 nm. The proposed Bi-EDFA achieved a wideband gain of around 18 dB within the wavelength region from 1530 to 1565 nm. The noise figures are maintained below 10 dB within a wide wavelength region from 1535 nm to 1620 nm. Gain, dB 40 35 30 Noise figure, dB 50