Impurity Absorption Loss due to Rare Earth Elements in a Fluoride Glass
- 1 March 1981
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 20 (3) , L191
- https://doi.org/10.1143/jjap.20.l191
Abstract
Optical spectra for each of the rare earth element doped BaF2-GdF3-ZrF4 glasses were measured. It was found that, in the 2–5 µm wavelength region, Ce, Pr, Nd, Sm, Tb and Dy contribute to the absorption loss and the loss magnitude due to each rare earth element of lppmw is several tens of dB per kilometer at the absorption peaks. It was concluded that the rare earth impurity concentration in fluoride optical fibers should be decreased to less than 0.1 ppbw in order to make the absorption loss 10-3 dB/km in the 3–4 µm wavelength.Keywords
This publication has 3 references indexed in Scilit:
- Fluoride Glass Fiber for Infrared TransmissionJapanese Journal of Applied Physics, 1980
- Devices and materials for 4 μm-band fibre-optical communicationIEE Journal on Solidstate and Electron Devices, 1978
- Optical Absorption of the Transition Elements in Vitreous SilicaJournal of the American Ceramic Society, 1974