Abstract
New broadband near infrared luminescence covering the whole work windows (1260-1625 nm) of the current wavelength division multiplexing (WDM) system was found from bismuth-activated M2O-Al2O3-SiO2 (M = Li, Na) and Li2O-Ta2O5-SiO2 glasses at room temperature in the case of 808 nm-laser excitation. But the near infrared luminescence mechanism of the bismuth-activated glasses is not well understood up to now. The figure-of-merits of bandwidth and gain of the glasses are better than those of Er3+-doped silicate glasses and Ti3+ doped sapphire, implying they are the promising gain-medium candidates for the broadband amplifiers and the widely tunable laser sources.
| Original language | English |
|---|---|
| Pages (from-to) | 1221-1225 |
| Number of pages | 5 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 354 |
| Issue number | 12-13 |
| DOIs | |
| State | Published - 15 Feb 2008 |
| Externally published | Yes |
Keywords
- Absorption
- Germanates
- Luminescence
- Optical properties
- Optical spectroscopy
- Oxide glasses
- Silicates