Electronic and optical properties of Ge-doped silica optical fiber
Keyword(s):
Electronic and optical properties of Germanium-doped (Ge-doped) silica optical fiber are investigated by employing first-principle methods. The substitution of a Ge atom with a Silicon (Si) atom or an Oxygen (O) atom in different “Si–O–Si” membered rings is analyzed. Compared with the experimental data observed at around 5 eV, our calculated results reveal that the characteristic absorption peak at 5.12 eV may be caused by Si–Ge–Si defect in 5-membered ring (5MR). Our study of Ge-doped approach in different ring structures will be useful in the application of Ge-doped optical fiber sensing.
2018 ◽
Vol 29
(5)
◽
pp. 861-865
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2019 ◽
Vol 9
(5)
◽
pp. p89105
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Keyword(s):
2021 ◽
Vol 643
◽
pp. 012021
Keyword(s):
2021 ◽
Vol 1795
(1)
◽
pp. 012002