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Gain enhancement in L-band gain-flattened EDFA using a reflective-type structure

✍ Scribed by T. C. Liang; N. J. Cheng; S. C. Hung

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
83 KB
Volume
37
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

We theoretically investigate the gain and noise figure of an L‐band gain‐flattened EDFA obtained from the one‐stage single‐pass, one‐stage double‐pass, and two‐stage double‐pass configurations. Compared to the one‐stage single‐pass scheme, the two‐stage double‐pass amplifier provides gain enhancement of about 4.2 dB without paying much noise penalty. By using the one‐stage double‐pass scheme, the gain is improved by about 4 dB. However, the noise figure was drastically degraded by >2 dB. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 393–395, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10928

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