Title :
Observation of NBOHC Excitation in Pulsed Yb-Doped Fiber Amplifiers
Author :
Dragic, Peter D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL
Abstract :
We present observations of interactions involving nonbridging oxygen hole center (NBOHC) defects in a pulsed Yb-doped fiber amplifier. When operated at high peak power, the amplifier produces a visible red luminescence, possibly attributable to the NBOHC defect, with five distinct, apparently gain-narrowed, emission bands. Interestingly, both the absorption and continuous-wave-excited emission spectra seem to decompose into five Gaussian bands that are consistent with the locations of the bands observed in the pulse-excited spectrum.
Keywords :
laser beams; luminescence; optical fibre amplifiers; ytterbium; Gaussian bands; Jk:Yb; NBOHC excitation; emission spectra; nonbridging oxygen hole center defects; pulsed Yb-doped fiber amplifiers; visible red luminescence; Optical fiber amplifiers; optical fiber lasers; pulse amplifiers; ytterbium;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.2004679
