Diode-pumped mid-infrared fiber laser with 50% slope efficiency

Yigit Ozan Aydin, Vincent Fortin, Frédéric Maes, Frédéric Jobin, Stuart D. Jackson, Réal Vallée, Martin Bernier

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Until now, the field of mid-infrared fiber laser research has been constrained by the limitation imposed by the Stokes efficiency limit. The conversion of high-power diode light emission operating at near-infrared wavelengths into midinfrared light invariably results in the deposition of significant amounts of heat in the fiber. This issue is compounded by the fact that mid-infrared transmitting glasses are thermomechanically weak, which means scaling the output power has been a longstanding challenge. In this report, we show that by cascading the adjacent transitions of the erbium ion at 2.8 and 1.6 µm in combination with a low-loss fluoride fiber, the slope efficiency for emission at 2.8 µmcan reach 50%, thus exceeding the Stokes limit by 15%.We also show that by highly resonating the 1.6 µm transition, a highly non-resonant excited-state absorption process efficiently recycles the excitation back to the upper laser level of the mid-infrared transition. This demonstration represents a significant advancement for the field that paves the way for future demonstrations that will exceed the 100 W power level.

LanguageEnglish
Pages235-238
Number of pages4
JournalOptica
Volume4
Issue number2
DOIs
Publication statusPublished - 20 Feb 2017

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Infrared lasers
Fiber lasers
infrared lasers
fiber lasers
Diodes
diodes
slopes
Infrared radiation
Demonstrations
Erbium
fibers
Fibers
Light emission
Electron transitions
Fluorides
Excited states
erbium
excitation
light emission
fluorides

Cite this

Aydin, Y. O., Fortin, V., Maes, F., Jobin, F., Jackson, S. D., Vallée, R., & Bernier, M. (2017). Diode-pumped mid-infrared fiber laser with 50% slope efficiency. Optica, 4(2), 235-238. https://doi.org/10.1364/OPTICA.4.000235
Aydin, Yigit Ozan ; Fortin, Vincent ; Maes, Frédéric ; Jobin, Frédéric ; Jackson, Stuart D. ; Vallée, Réal ; Bernier, Martin. / Diode-pumped mid-infrared fiber laser with 50% slope efficiency. In: Optica. 2017 ; Vol. 4, No. 2. pp. 235-238.
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abstract = "Until now, the field of mid-infrared fiber laser research has been constrained by the limitation imposed by the Stokes efficiency limit. The conversion of high-power diode light emission operating at near-infrared wavelengths into midinfrared light invariably results in the deposition of significant amounts of heat in the fiber. This issue is compounded by the fact that mid-infrared transmitting glasses are thermomechanically weak, which means scaling the output power has been a longstanding challenge. In this report, we show that by cascading the adjacent transitions of the erbium ion at 2.8 and 1.6 µm in combination with a low-loss fluoride fiber, the slope efficiency for emission at 2.8 µmcan reach 50{\%}, thus exceeding the Stokes limit by 15{\%}.We also show that by highly resonating the 1.6 µm transition, a highly non-resonant excited-state absorption process efficiently recycles the excitation back to the upper laser level of the mid-infrared transition. This demonstration represents a significant advancement for the field that paves the way for future demonstrations that will exceed the 100 W power level.",
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Aydin, YO, Fortin, V, Maes, F, Jobin, F, Jackson, SD, Vallée, R & Bernier, M 2017, 'Diode-pumped mid-infrared fiber laser with 50% slope efficiency', Optica, vol. 4, no. 2, pp. 235-238. https://doi.org/10.1364/OPTICA.4.000235

Diode-pumped mid-infrared fiber laser with 50% slope efficiency. / Aydin, Yigit Ozan; Fortin, Vincent; Maes, Frédéric; Jobin, Frédéric; Jackson, Stuart D.; Vallée, Réal; Bernier, Martin.

In: Optica, Vol. 4, No. 2, 20.02.2017, p. 235-238.

Research output: Contribution to journalArticleResearchpeer-review

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Aydin YO, Fortin V, Maes F, Jobin F, Jackson SD, Vallée R et al. Diode-pumped mid-infrared fiber laser with 50% slope efficiency. Optica. 2017 Feb 20;4(2):235-238. https://doi.org/10.1364/OPTICA.4.000235