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.
| Language | English |
|---|---|
| Pages | 235-238 |
| Number of pages | 4 |
| Journal | Optica |
| Volume | 4 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 20 Feb 2017 |
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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 journal › Article › Research › peer-review
TY - JOUR
T1 - Diode-pumped mid-infrared fiber laser with 50% slope efficiency
AU - Aydin, Yigit Ozan
AU - Fortin, Vincent
AU - Maes, Frédéric
AU - Jobin, Frédéric
AU - Jackson, Stuart D.
AU - Vallée, Réal
AU - Bernier, Martin
PY - 2017/2/20
Y1 - 2017/2/20
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85013311808&partnerID=8YFLogxK
U2 - 10.1364/OPTICA.4.000235
DO - 10.1364/OPTICA.4.000235
M3 - Article
VL - 4
SP - 235
EP - 238
JO - Optica
T2 - Optica
JF - Optica
SN - 2334-2536
IS - 2
ER -