Title :
Gain characteristics of Tm-doped fiber amplifier by dual-wavelength pumping with tunable L-band source
Author :
Tanabe, Setsuhisa ; Tamaoka, Takeshi
Author_Institution :
Fac. of Integrated Studies, Kyoto Univ., Japan
Abstract :
Summary form only given. The gain characteristics of a Tm-doped fiber (TDF) were investigated with a 1051 nm-laser and a tunable L-band source to investigate the optimization of dual-wavelength pumping scheme. The gain profiles of the TDF showed different profiles with different pumping wavelength. The ground state absorption efficiency was higher in longer λAp and the excited state absorption efficiency became higher in shorter λAp and with higher PAP. The dual wavelength pumping conditions affect the degree of population inversion and thus the gain spectra. Further research is under way by using L-EDFA to obtain higher PAP for further gain-shift.
Keywords :
excited states; ground states; optical fibre amplifiers; optical pumping; population inversion; thulium; 1051 nm; 1051 nm-laser; Tm-doped fiber amplifier; dual-wavelength pumping; dual-wavelength pumping scheme; excited state absorption efficiency; gain characteristics; gain profiles; gain spectra; gain-shift; ground state absorption efficiency; optimization; population inversion; pumping wavelength; tunable L-band source; Degradation; Gain measurement; L-band; Monitoring; Optical fiber amplifiers; Optical pumping; Power amplifiers; Power generation; Signal restoration; Wavelength measurement;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036564
