Investigations of YAG:Er(3+),Yb(3+) and YAG:Co(2+) Crystals for Laser Applications
Abstract
The results of examinations of spectroscopic properties and generation parameters of new active media, i.e., Er(3+) and Yb(3+) doped YAG crystals are given. Erbium and ytterbium doped YAG single crystals were obtained by the Czochralski method. The spectral properties and laser characteristics were investigated. Absorption spectra of Er(3+) and Yb(3+) - doped active media were measured in the spectral range 190+5000 nm at room temperature. Excitation and luminescence spectra were also recorded at room temperature with a JOBIN-YVON spectrofluorimeter using a diode laser (POLAROID 4300, 980 nm, 1 W) as an excitation source. The measurements of the lifetime of the Er(3+) ions in the upper laser level (sup 4 I sub 13/2) of the samples were made by the direct method with pulse excitation. We present also the results of investigations on spectroscopic properties and non-linear absorption effect in YAG: Co(2+) crystal - new absorber used for the systems generating giant-pulse radiation at 1.5 micrometers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2001
- Accession Number
- ADP011937
Entities
People
- K. Kopczynski
- M. Kwasny
- T. Lukasiewicz
- Z. Frukacz
- Z. Mierczyk
Organizations
- Military University of Technology