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Improved 2.79 μm continuous-wave laser performance from a diode-end pumped Er,Pr:CaF2 crystal
- Source :
- Journal of Alloys and Compounds. 695:3370-3375
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- The spectral properties of lightly doped Er:CaF 2 and Er,Pr:CaF 2 single crystals were investigated. Benefited from particular clustering effect, 2.79 μm continuous-wave (CW) laser operation was demonstrated in lightly doped 3 at.% Er:CaF 2 crystal. After co-doping small amount of Pr 3+ , the lifetime gap between Er 3+ : 4 I 11/2 and Er 3+ : 4 I 13/2 was shortened from 7.86 ms to about 1 ms. Moreover, the near-infrared and up-conversion fluorescence were significantly quenched. Thus, the CW laser performance was greatly improved. The slope efficiency was effectively improved from 8.0% to 15.8%.
- Subjects :
- Materials science
business.industry
Mechanical Engineering
Slope efficiency
Doping
Metals and Alloys
02 engineering and technology
Cw laser
021001 nanoscience & nanotechnology
Laser
01 natural sciences
Fluorescence
law.invention
010309 optics
Crystal
Mechanics of Materials
law
0103 physical sciences
Materials Chemistry
Continuous wave
Optoelectronics
0210 nano-technology
business
Diode
Subjects
Details
- ISSN :
- 09258388
- Volume :
- 695
- Database :
- OpenAIRE
- Journal :
- Journal of Alloys and Compounds
- Accession number :
- edsair.doi...........ed0863f8cc6bf497217e1b8e4cad3206
- Full Text :
- https://doi.org/10.1016/j.jallcom.2016.12.024