Title :
Characterization of efficient dual-wavelength (1050 + 800 nm) pumping scheme for thulium-doped fiber amplifiers
Author :
Gomes, A.S.L. ; Carvalho, M.T. ; Sundheimer, M.L. ; Bastos-Filho, C.J.A. ; Martins-Filho, J.F. ; Silva, M. B Costa e ; von der Weid, J.P. ; Margulis, W.
Author_Institution :
Departamento de Eletronica e Sistemas, Univ. Fed. de Pernambuco, Brazil
Abstract :
We report on the characterization of a recently introduced dual-wavelength pumping scheme for thulium-doped fiber amplifiers using 800 and 1050 nm. Using a counterpropagating pump configuration, 180 mW of total pump power yielded 27-dB small-signal gain and less than 5-dB noise figure. Furthermore, using optical frequency domain reflectometry, the distributed gain in this configuration was evaluated, allowing for optimization of the doped fiber length.
Keywords :
laser noise; laser variables measurement; optical fibre amplifiers; optical pumping; reflectometry; thulium; 1050 nm; 180 mW; 27 dB; 5 dB; 800 nm; TDFA; Tm-doped fiber amplifiers; counterpropagating pump configuration; distributed gain; doped fiber length optimization; efficient dual-wavelength pumping scheme; fluoride fiber; gain enhancement; optical frequency domain reflectometry; small-signal gain; total pump power; Doped fiber amplifiers; Frequency domain analysis; Laser excitation; Optical fiber amplifiers; Optical fibers; Optical noise; Optical pumping; Pump lasers; Reflectometry; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.806847
