A. A. Rybaltovsky,1 K. K. Bobkov,1 V. V. Velmiskin,1 A. A. Umnikovhttps://orcid.org/0000-0001-6006-5410,2 I. A. Shestakova,3 A. N. Guryanov,2 M. E. Likhachev,1 M. M. Bubnov,1 E. M. Dianov1
1Fiber Optics Research Ctr. (Russian Federation) 2Institute of Chemistry of High-Purity Substances (Russian Federation) 3POLYUS Research and Development Institute (Russian Federation)
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
We have studied the photodarkening effect in fiber preforms with an ytterbium-doped aluminosilicate glass core. The room-temperature stable Yb2+ ions formation in the glass matrix under both UV- and NIR-pumping irradiation was revealed by the method of absorption spectra analysis and the fluorescence spectroscopy technique. Comparative studies of preforms and crystals samples luminescence spectra, obtained under UV-excitation, were performed. A general mechanism of Yb2+ ions and aluminium oxygen-hole centers (Al-OHC) formation as a result of photoinduced process of Yb3+ ions excitation to "charge-transfer state" (CTS) was found for both Yb:YAG crystal and aluminosilicate glass.
A. A. Rybaltovsky,K. K. Bobkov,V. V. Velmiskin,A. A. Umnikov,I. A. Shestakova,A. N. Guryanov,M. E. Likhachev,M. M. Bubnov, andE. M. Dianov
"The Yb-doped aluminosilicate fibers photodarkening mechanism based on the charge-transfer state excitation", Proc. SPIE 8961, Fiber Lasers XI: Technology, Systems, and Applications, 896116 (7 March 2014); https://doi.org/10.1117/12.2038226
ACCESS THE FULL ARTICLE
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
A. A. Rybaltovsky, K. K. Bobkov, V. V. Velmiskin, A. A. Umnikov, I. A. Shestakova, A. N. Guryanov, M. E. Likhachev, M. M. Bubnov, E. M. Dianov, "The Yb-doped aluminosilicate fibers photodarkening mechanism based on the charge-transfer state excitation," Proc. SPIE 8961, Fiber Lasers XI: Technology, Systems, and Applications, 896116 (7 March 2014); https://doi.org/10.1117/12.2038226