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Characteristics of Low Noise Hybrid Fiber Amplifier
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- Authors
- Sun Hyok Chang, Jin Soo Han, Hee Sang Chung, Kwang Joon Kim, Je Soo Ko
- Issue Date
- 2006-05
- Citation
- Optics Communications, v.261, no.2, pp.269-275
- ISSN
- 0030-4018
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Project Code
- 06MT2600, ASON based Metro Photonic Cross-Connect Technology, Kim Kwangjoon
- Abstract
- The characteristics of hybrid fiber amplifier (HFA) are investigated. HFA is composed of three stages: short-length EDFA pre-stage, DCF Raman amplifier, and power boosting EDFA. HFA has low noise figure, high output power, and also wide input power dynamic range. Gain control method of HFA is presented experimentally, and the transient gain excursion is suppressed to less than 0.5 dB at 3 dB channel add-drop. HFA can be used as line amplifier in optical transmission link even combined with distributed Raman amplifier due to wide input power dynamic range. The transmission performance of HFA is better than EDFA by more than 1.0 dB of Q-factor in 720 km SMF transmission. © 2005 Elsevier B.V. All rights reserved.
- KSP Keywords
- Distributed Raman Amplifier, Gain Control, High output power, Hybrid fiber amplifier, Input power, Low noise figure, Noise Figure(NF), Quality-factor(Q-factor), Short-length, control method, dynamic range