Title :
TDFA/Raman hybrid amplifiers covering the entire S-band pumped by a single laser
Author :
Lüthi, S.R. ; Silva, M. B Costa e ; Bastos-Filho, C.J.A. ; Martins-Filho, J.F. ; Gomes, A.S.L.
Author_Institution :
Dept. de Fisica, Univ. Fed. de Pernambuco, Recife-PE, Brazil
Abstract :
Hybrid amplifier configurations are reported cascading one Raman and one or two Tm3+-doped fiber stages, using a single pump at 1426 nm, allowing seamless amplification of the entire S-band (1460-1530 nm). Different configurations were studied, with gain over the entire band width and peak gain up to 24 dB. Noise figure as low as 7 dB was achieved.
Keywords :
Raman lasers; laser noise; optical fibre amplifiers; optical pumping; thulium; 1426 nm; 1460 to 1530 nm; 24 dB; 7 dB; Raman amplifiers; S-band; TDFA; Tm3+-doped fiber stages; hybrid amplifiers; noise figure; optical pumping; seamless amplification; single laser; Broadband amplifiers; Fiber lasers; Laser excitation; Noise figure; Optical amplifiers; Optical fiber amplifiers; Optical fibers; Pump lasers; Semiconductor optical amplifiers; Stimulated emission; Hybrid amplifier; Raman fiber amplifier (RFA); optical fiber amplifiers; thulium-doped fiber amplifier (TDFA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.856373
