Full text loading...
(Color online) (a) Absorption spectra of GAB and GSAB glasses. The inset shows the corresponding transmission spectra. The sample thickness . (b) Photoluminescence spectra of GAB and GSAB glasses when pumped by LD.
(Color online) Wavelength-dependent internal gain from under the excitation power of . The gain at is also measured. The inset shows the schematic diagram. (a) tunable LD and LD as seed beam, (b) LD as excitation resource (the dimension of the beam waist is ), (c) chopper, (d) lens with focal length, (e) lens with focal length, (f) sample, (g) filter, (h) lens with focal length, (i) InGaAs detector, and (j) digital oscilloscope. M1 and M2 are mirrors.
(Color online) Internal gain at 1300 and as the function of pumping power.
(Color online) Raman spectra of germanate (lower curve) and germanium silicate (upper curve) glasses. The inset gives the enlarged Raman spectra between 800 and .
Photoluminescence spectra of GAB and GABB glasses when pumped by LD. The composition of GABB is .
Article metrics loading...