Title :
Multi-pump optimization for Raman+EDFA hybrid amplifiers under pump residual recycling
Author :
Martini, M.M.J. ; Castellani, C.E.S. ; Pontes, M.J. ; Ribeiro, M.R.N. ; Kalinowski, H.J.
Abstract :
A new technique to optimize the gain profile of broadband hybrid amplifiers is here proposed. It is based on the equalization of Erbium´s gain spectrum by adjusting the flexible gain profile of a multi-pump Raman amplification stage. However, for increased power pump efficiency, the residual Raman pump is recycled by the Erbium-doped section. This hybrid amplifier is assessed in terms of single-channel global gain, ripple, and noise figure. Ripple values below 1 dB have been found in a bandwidth of approximately 30 nm under two and three pump configurations.
Keywords :
Raman spectra; erbium; optical fibre amplifiers; optical pumping; JkJk:Er; Raman-EDFA hybrid amplifiers; broadband hybrid amplifiers; gain profile optimization; gain spectra; multipump Raman amplification; multipump optimization; pump residual recycling; Bandwidth; Broadband amplifiers; Fiber nonlinear optics; Nonlinear optics; Optical amplifiers; Optical pumping; Optical scattering; Power amplifiers; Recycling; Stimulated emission; EDFAs; Hybrid Optical Amplifiers; Pump Recycling; Stimulated Raman Scattering;
Conference_Titel :
Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International
Conference_Location :
Belem
Print_ISBN :
978-1-4244-5356-6
Electronic_ISBN :
1679-4389
DOI :
10.1109/IMOC.2009.5427617
