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The research of mix Raman and EDFA amplifier recycling residual Raman pump for amplifier gain efficiency improvement
Author(s) -
Lin HsiuSheng,
Lai PoChou
Publication year - 2009
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.24055
Subject(s) - optical amplifier , raman scattering , materials science , amplifier , raman spectroscopy , optoelectronics , erbium , optics , doping , physics , laser , cmos
We propose and demonstrate a novel type of mix Raman and Erbium Doped Fiber Amplifier (EDFA) to recycle the residual Raman pump for enhancing the gain efficiency of power. The mix amplifier is to implement the residual Raman pump from the Stimulated Raman Scattering (SRS) of Raman fiber amplifier (RFA), to be recycled in the Erbium doped fiber (EDF) as the pump of the Erbium doped fiber amplifier (EDFA) [Dai et al., IEEE Photon Technol Lett 8 (1996), 1713–1715.1]. The proposed mix amplifier system structure has only one pump source for Raman amplification, and residual Raman pump after the Dispersion compensating fiber (DCF) is recycled for erbium doped fiber as the secondary signal amplification. The proposed mix amplifier structure can improve the total gain efficiency by 19.3 dB, compared with the performance of the only one Raman amplifier. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 358–361, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24055