Title :
Cladding-Pumped Er/Yb-Doped Multi-Element Fiber Amplifier for Wideband Applications
Author :
Jain, Sonal ; Thipparapu, Naresh Kumar ; Barua, Pranabesh ; Sahu, J.K.
Author_Institution :
Optoelectron. Res. Centre, Univ. of Southampton, Southampton, UK
Abstract :
A cladding-pumped multi-element fiber (MEF) comprising 4-Er/Yb-doped signal fibers and single multimode pump fiber has been used to demonstrate a wideband amplifier. The MEF amplifier has been characterized for different pump powers and signal fiber lengths. A maximum gain of 37 dB and corresponding noise figure of 7.3 dB have been obtained with an input signal of -23 dBm in the C-band. The signal fibers were cascaded to provide >17-dB gain over a 80-nm bandwidth covering a wavelength range of 1536-1615 nm.
Keywords :
erbium; optical communication equipment; optical fibre amplifiers; optical fibre cladding; optical fibre communication; optical pumping; wideband amplifiers; ytterbium; 4-Er/Yb-doped signal fibers; C-band; MEF amplifier; cladding-pumped Er/Yb-doped multielement fiber amplifier; gain 37 dB; input signal; noise figure 7.3 dB; pump powers; signal fiber lengths; single multimode pump fiber; wavelength 1536 nm to 1615 nm; wideband amplifier; wideband applications; Erbium; Gain; Noise measurement; Optical fiber amplifiers; Optical fiber communication; Optical fiber devices; Optical fiber amplifiers; Optical fiber devices; Optical fiber fabrication; optical fiber communication; optical fiber devices; optical fiber fabrication;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2374234
