Single wavelength pump–probe technique to measure population recovery in a continuously pumped fiber amplifier

We report a single wavelength pump–probe technique that is used to measure population recovery in a continuously pumped fiber amplifier. Pump and probe pulse pairs were generated by a single laser diode modulated by a function generator. The dependence of the population inversion on the pulse interv...

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Bibliographic Details
Published inOptics communications Vol. 300; pp. 96 - 99
Main Authors Kuroda, Keiji, Yoshikuni, Yuzo
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.07.2013
Subjects
Fiber amplifier
Population inversion
Pump–probe technique
Recovery time
Pump–probe technique
Fiber amplifier
Recovery time
Population inversion
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Summary:We report a single wavelength pump–probe technique that is used to measure population recovery in a continuously pumped fiber amplifier. Pump and probe pulse pairs were generated by a single laser diode modulated by a function generator. The dependence of the population inversion on the pulse interval was calculated from the amplified pulse shapes. Two recovery times, of the orders of a microsecond and a 100µs, were clearly observed.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2013.02.069