True mid-infrared Pr<sup>3+</sup>absorption cross-section in a selenide-chalcogenide host-glass

Seddon, Angela B.; Furniss, David; Tang, Zhuoqi; Sójka, Ł.; Benson, T.M.; Caspary, Reinhard; Sujecki, S.

doi:10.1109/icton.2016.7550709

Cited by 11 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We have found no reports of similar nonlinear behavior in the literature for MIR fluorescentemission at greater than 3.9 m [7], nor pump-power exiting, in RE-ion doped glass fibers. It is not claimed that a population-inversion has been achieved here and gain would have been suppressed by the presence of resonant extrinsic absorption, and possibly extrinsic non-radiative decay, [6,41] In solubilizer have brought into the glass-host extra unwanted impurities and raised the optical loss in the fiber [42]. /In small-core SIF' (section 2.2, Fig.1(ii)) and (b) 40 µm core-diameter 'Pr 3+ /In small-core SIF' (section 2.2, Fig.1(ii)).…”

Section: % Of Fiber Od)mentioning

confidence: 96%

Promising emission behavior in Pr 3+ /In selenide-chalcogenide-glass small-core step index fiber (SIF)

et al. 2017

View full text Add to dashboard Cite

Selenide-chalcogenide glass, small-core, step-index fiber (SIF), core-doped with Pr 3+ : 9.51 x 10 24 ions m -3 (500 ppmw) is fabricated for the first time with indium to help solubilize Pr 3+ . Core diameters of 20 or 40 µm are confirmed using scanning electron microscopy and near-field imaging; fibre numerical aperture is ~0.4. Optical loss is ≥4.9 dB m -1 across the 3-9m mid-infrared (MIR) spectral range. On pumping at 1.55 m or 2.013 m, the SIFs give broad MIR emission across 3.5-6 m assigned to 3 H6 3 H5 and 3 H5 3 H4. The Pr 3+ emission-lifetime at 4.7 m decreases from bulk-glass (10.1 ±0.3 ms), to intermediately processed fiber (8.10 ±0.5 ms) to SIF (7.1 ±0.5 ms) induced by the processing. On end-pumping SIFs at 2.013 µm, the output pump-power and emission intensity at 4.7 µm became sub-linear and super-linear, respectively, suggesting MIR excited-state saturation is occurring.

show abstract

Section: % Of Fiber Od)mentioning

confidence: 96%

Promising emission behavior in Pr 3+ /In selenide-chalcogenide-glass small-core step index fiber (SIF)

et al. 2017

View full text Add to dashboard Cite

show abstract

“…GSA absorption was measured for a 500 ppmw Pr 3+ doped selenide bulk sample Sójka et al 2014). The estimated contribution of the Se-H impurity band to the GSA was removed using Gaussian fitting (Seddon et al 2016). The cross section values for ESA and GSA are very similar.…”

Section: Calculation Of Esa Cross Sectionmentioning

confidence: 99%

Numerical and experimental investigation of mid-infrared laser action in resonantly pumped Pr3+ doped chalcogenide fibre

et al. 2016

Self Cite

View full text Add to dashboard Cite

Numerical modelling of a Pr 3+ -doped chalcogenide glass fibre laser is presented in this paper. The spectroscopic parameters are extracted from in-house prepared Pr 3+ doped selenide-chalcogenide glass samples and used in the modelling. In this contribution, particular attention is paid to a novel resonant pumping scheme. The modelled laser performance is tested as a function of pump wavelength, fibre length, signal wavelength, fibre background loss and output coupler reflectivity. The modelling results show that the proposed resonant pumping scheme, which might be achieved in practice using a high power QCL pump, allows for a significant reduction in the laser threshold and an increase in the laser efficiency. A slope efficiency of 54% is calculated when the fibre losses are brought down to 1 dB/m.

show abstract

“…The Tb 3+ ion concentration is 1.65x10 25 /m 3 . The assumed averaged attenuation coefficient for the signal wave is 10 m -1 (due to SeH impurities [30]). The weighted signal emission and absorption cross sections are 6.3 x 10 -25 m 2 and 6.7 x 10 -25 m 2 , respectively.…”

Section: Resultsmentioning

confidence: 99%

Spatiotemporal modeling of mid-infrared photoluminescence from terbium(III) ion doped chalcogenide-selenide multimode fibers

Sujecki

Sójka

Tang

et al. 2019

Journal of Rare Earths

View full text Add to dashboard Cite

In this contribution a numerical model is developed to study the time dynamics of photoluminescence emitted by Tb 3+ doped multimode chalcogenideselenide glass fibers pumped by laser light at approximately 2 m. The model consists of a set of partial differential equations (PDEs), which describe the temporal and spatial evolution of the photon density and level populations within the fiber. In order to solve numerically the PDEs a Method of Lines is applied. The modeling parameters are extracted from measurements and from data available in the literature. The numerical results obtained support experimental observations. In particular, the developed model reproduces the discrepancies that are observed between the photoluminescence decay curves obtained from different points along the fiber. The numerical analysis is also used to explain the source of these discrepancies.

show abstract

True mid-infrared Pr³⁺absorption cross-section in a selenide-chalcogenide host-glass

Cited by 11 publications

References 4 publications

Promising emission behavior in Pr 3+ /In selenide-chalcogenide-glass small-core step index fiber (SIF)

Promising emission behavior in Pr 3+ /In selenide-chalcogenide-glass small-core step index fiber (SIF)

Numerical and experimental investigation of mid-infrared laser action in resonantly pumped Pr3+ doped chalcogenide fibre

Spatiotemporal modeling of mid-infrared photoluminescence from terbium(III) ion doped chalcogenide-selenide multimode fibers

Contact Info

Product

Resources

About

True mid-infrared Pr3+absorption cross-section in a selenide-chalcogenide host-glass

Cited by 11 publications

References 4 publications

Promising emission behavior in Pr 3+ /In selenide-chalcogenide-glass small-core step index fiber (SIF)

Promising emission behavior in Pr 3+ /In selenide-chalcogenide-glass small-core step index fiber (SIF)

Numerical and experimental investigation of mid-infrared laser action in resonantly pumped Pr3+ doped chalcogenide fibre

Spatiotemporal modeling of mid-infrared photoluminescence from terbium(III) ion doped chalcogenide-selenide multimode fibers

Contact Info

Product

Resources

About

True mid-infrared Pr³⁺absorption cross-section in a selenide-chalcogenide host-glass