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Low-Noise Fiber Raman Amplifiers Based on a Raman Ring Fiber Oscillator
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- Authors
- Joon Tae Ahn, Hong-Seok Seo, Bong Je Park, Woon Jin Chung, Kyong Hon Kim
- Issue Date
- 2007-12
- Citation
- IEEE Photonics Technology Letters, v.19, no.23, pp.1898-1900
- ISSN
- 1041-1135
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- We propose two discrete fiber Raman amplifier schemes using Raman ring fiber oscillator, a two-stage scheme, and a forward pumping scheme, to reduce double Rayleigh backscattering noise at high gains over 20 dB. Both schemes have low noise characteristics compared to a previous scheme. Bit-error-rate measurements at 10 Gb/s show power penalty free operation for the two-stage scheme at a gain of 25 dB. © 2007 IEEE.
- KSP Keywords
- Bit-error-rate(BER), Double Rayleigh backscattering(DRB), Fiber Raman amplifier, Low noise, Noise characteristics, Two-Stage, forward pumping, high gain, power penalty