Highly efficient cascaded amplification using Pr(3+)-doped mid-infrared chalcogenide fiber amplifiers.
Opt Lett
; 40(16): 3687-90, 2015 Aug 15.
Article
em En
| MEDLINE
| ID: mdl-26274635
ABSTRACT
We computationally investigate cascaded amplification in a three-level mid-infrared (IR) Pr(3+)-doped chalcogenide fiber amplifier. The overlap of the cross-sections in the transitions (3)H(6)â(3)H(5) and (3)H(5)â(3)H(4) enable both transitions to simultaneously amplify a single wavelength in the range between 4.25 µm and 4.55 µm. High gain and low noise are achieved simultaneously if the signal is at 4.5 µm. We show that 45% of pump power that is injected at 2 µm can be shifted to 4.5 µm. The efficiency of using a mid-IR fiber amplifier is higher than what can be achieved by using mid-IR supercontinuum generation, which has been estimated at 25%. This mid-IR fiber amplifier can be used in conjunction with quantum cascade lasers to obtain a tunable, high-power mid-IR source.
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Bases de dados:
MEDLINE
Assunto principal:
Praseodímio
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Calcogênios
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Tecnologia de Fibra Óptica
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Raios Infravermelhos
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2015
Tipo de documento:
Article