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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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Khudus, Muhammad Abdul
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Publications (4/4 displayed)
- 2017Ultraviolet photoluminescence in Gd-doped silica and phosphosilicate fiberscitations
- 2017All-fiber sixth harmonic generation of deep UVcitations
- 2016Phase matched parametric amplification via four-wave mixing in optical microfiberscitations
- 2016All-fiber fourth and fifth harmonic generation from a single sourcecitations
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article
Ultraviolet photoluminescence in Gd-doped silica and phosphosilicate fibers
Abstract
Optical fiber lasers operating in the near infrared (IR) and visible spectral regions have relied on the spectroscopic properties of rare earth ions such as Yb<sup>3+</sup>, Er<sup>3+</sup>, Tm<sup>3+</sup>, N<sup>d3+</sup> and Sm<sup>3+</sup>. Here, we investigate Gd3+ doping in phosphosilicate and pure silica fibers using solution doping and sol-gel techniques respectively for potential applications in the ultraviolet (UV). Photoluminescence spectra for optical fiber bundles and fiber preforms were recorded and compared. Emissions at 312 nm (phosphosilicate) and 314 nm (pure silica) were observed when pumping to the Gd3+ <sup>6</sup>D<sub>J</sub>, <sup>6</sup>I<sub>J</sub>, and <sup>6</sup>P<sub>J </sub>= 5/2, 3/2 energy levels. Oxygen deficient center was observed in solution doping sample with a wide absorption band centered at around 248 nm not affecting pumping to <sup>6</sup>I<sub>J</sub> states.