Metastable-state lifetime of erbium ions measured through delayed absorption in the fiber propagation direction

We performed lifetime measurements of erbium ions doped in fibers with lengths of 20–160 cm. Using a pump–probe technique, we measured the lifetime of the 4 I 13/2 state of erbium ions in the fiber propagation direction. The dependence of the measured lifetime on fiber length was compared with the l...

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Bibliographic Details
Published inApplied physics. B, Lasers and optics Vol. 123; no. 4; pp. 1 - 5
Main Authors Kuroda, Keiji, Nakandakari, Mami, Yoshikuni, Yuzo
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2017
Springer Nature B.V
Subjects
Applied physics
Engineering
Erbium
Lasers
Metastable state
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Propagation
Quantum Optics
Spontaneous emission
Spontaneous Emission
Fiber Length
Pump Pulse
Erbium
Output Pulse
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Summary:We performed lifetime measurements of erbium ions doped in fibers with lengths of 20–160 cm. Using a pump–probe technique, we measured the lifetime of the 4 I 13/2 state of erbium ions in the fiber propagation direction. The dependence of the measured lifetime on fiber length was compared with the lifetime determined by temporally resolving spontaneous emission in the same direction. The dependence of the 4 I 13/2 lifetime on input power was also measured. We found that the 4 I 13/2 lifetime of erbium ions was nearly constant at about 10 ms under all the investigated conditions.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-017-6674-2