Kinetics of Er3+-doped fluorozirconate optical fiber upconversion fluorescence and laser emission under 800 nm excitation

Applying single- and double-pulse excitation at 800 nm, the kinetics of the upconversion fluorescence in the green, as well as the upconversion laser at 543 nm was studied. No significant delay between the pumping pulse and the laser emission was found. In the erbium doped (1000 ppm) optical fiber,...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2001-08, Vol.73 (2), p.125-128
Main Authors: KACZMAREK, F, STRYTA, Z, JENDRZEJCZAK, A
Format: Article
Language:English
Subjects:
Delay
Emission
Exact sciences and technology
Excitation
Fiber lasers
Fluorescence
Fundamental areas of phenomenology (including applications)
Lasers
Optical fibers
Optical pumping
Optics
Physics
Upconversion
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Summary:Applying single- and double-pulse excitation at 800 nm, the kinetics of the upconversion fluorescence in the green, as well as the upconversion laser at 543 nm was studied. No significant delay between the pumping pulse and the laser emission was found. In the erbium doped (1000 ppm) optical fiber, the mechanism responsible for the upconversion is purely of the excited state absorption (ESA) type. The double-pulse technique enables also a determination of the lifetime of the intermediate metastable state I 11/2 (7c0.3 ms). Some other basic properties of the upconverted fluorescence and of the laser itself (fluorescence spectrum, optical gain, laser threshold) are also described.
ISSN:0946-2171
1432-0649
DOI:10.1007/s003400100603