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| Naji, M. |
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Sahu, Jayanta Kumar
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (64/64 displayed)
- 2023Er-Ce Co-doped aluminosilicate fibres for C and L-Band amplifiers
- 2022Temperature dependent characteristics of L-band EDFA using phosphorus- and High Aluminum- Co-doped Silica Fiberscitations
- 2022Temperature-dependent study on L-band EDFA characteristics pumped at 980nm and 1480nm in phosphorus and aluminum-rich erbium-doped silica fiberscitations
- 2021Bi-doped fiber amplifiers for ultra-wideband optical communication systemscitations
- 2020Enhancement of nonlinear functionality of step-index silica fibers combining thermal poling and 2D materials depositioncitations
- 2020Development of Tm:Ho co-doped silica fiber for high-power operation at 2.1μm
- 2020Optical fibers fabricated from 3D printed silica preformscitations
- 2020Study on the dopant concentration ratio in thulium-holmium doped silica fibers for lasing at 2.1µmcitations
- 2020Efficient cladding pump Tmcitations
- 2020Performance characteristics of a multicore Interferometric Fiber Optic Gyroscope using a 7-Core fibercitations
- 201947 W continuous-wave 1726 nm thulium fiber laser core-pumped by an erbium fiber lasercitations
- 2019Bi-doped fiber amplifiers and lasers [Invited]citations
- 2019Pulsed Yb-doped phospho-silicate fiber MOPA source with 25kW peak power and excellent beam quality
- 2019Thulium-doped Fibre Laser with 25 W Single-mode Output at 1726 nmcitations
- 2019Impact of the electrical configuration on the thermal poling of optical fibres with embedded electrodes: Theory and experiments
- 2019High power 1726nm operation of a thulium fiber laser pumped in-band by an erbium-only fiber laser
- 2019Bismuth doped fiber for filtering applicationscitations
- 2018Additive manufacturing towards fabrication of next generation of optical fibres
- 2017Ultraviolet photoluminescence in Gd-doped silica and phosphosilicate fiberscitations
- 2017Holmium doped fibre optimised for resonant cladding pumping
- 2015Highly efficient Yb-free Er-La-Al doped ultra low NA large mode area single-trench fiber lasercitations
- 2015Cladding shaping of optical fibre preforms via CO2 laser machining
- 2015Experimental demonstration of single-mode large mode area multi-trench fiber for UV-VIS light transmission
- 2014Thermally-stimulated emission analysis of bismuth-doped silica fiberscitations
- 2014Robust single-mode all-solid multi-trench fiber with large effective mode areacitations
- 2014Characterization of fluorescence lifetime of Tm-doped fibers with increased quantum conversion efficiencycitations
- 2014Novel dielectric nanoparticles (DNP) doped nano-engineered glass based optical fiber for fiber lasercitations
- 2014Multi-element fiber for next generation optical communication
- 2014Multi Trench Fiber: an ultra large mode area solution for industrial manufacturing
- 2014Extending single mode performance of all-solid large-mode-area single trench fibercitations
- 2012Nano-engineered glass based optical fiber for fiber lasercitations
- 20125.4W cladding-pumped Nd:YAG silica fiber laser
- 2012Q-switched neodymium-doped Y3Al5O12-based silica fiber lasercitations
- 2011Double-pass erbium-doped zirconia fiber amplifier for wide-band and flat-gain operationscitations
- 2010Performance comparison of Zr-based and Bi-based erbium-doped fiber amplifierscitations
- 2010100W CW cladding-pumped Raman fiber last at 1120nmcitations
- 2010Modification of spectroscopic properties of Bismuth doped silica fiber by post-fabrication process and different fabrication methods
- 2010Micromachined multimode interference device in flat-fibercitations
- 2010Rare earth doped optical fiber fabrication using novel gas phase deposition techniquecitations
- 2010Novel technique for mode selection in a large-mode-area fiber laser
- 2010Multi-watts narrow-linewidth all fiber Yb-doped laser operating at 1179 nmcitations
- 2010Wideband EDFA based in erbium doped crystalline zirconia yttria alumino silicate fibercitations
- 2010MCVD in-situ solution doping process for the fabrication of complex design large core rare-earth doped fiberscitations
- 2010Yb2O3-doped YAG nano-crystallites in silica-based core glass matrix of optical fiber preformcitations
- 2010Bend-effects on Brillouin gain in large mode area fiber amplifiers with acoustic antiguide
- 2010Ytterbium-doped Y2O3 nanoparticle silica optical fibers for high power fiber lasers with suppressed photodarkeningcitations
- 2009High power thulium doped fiber laserscitations
- 2009Fiber design for high power fiber laserscitations
- 2009Ytterbium doped nanostructured optical fibers for high power fiber lasers
- 2008Reply to comment on “Photodarkening in Yb-doped aluminosilicate fibers induced by 488 nm irradiation”citations
- 2008High-power linearly-polarized operation of a cladding-pumped Yb fibre laser using a volume Bragg grating for wavelength selectioncitations
- 2006Spectral control of optical gain in a rare earth-doped optical fiber using novel triple layered structurescitations
- 2006Highly efficient erbium-ytterbium co-doped fibre laser with 188W output power at 1565nmcitations
- 2006New Yb:Hf-doped silica fiber for high-power fiber laserscitations
- 2006Optimisation of cascaded Yb fiber amplifier chains using numerical-modellingcitations
- 2006Temperature-dependent fluorescence characteristics of an ytterbium-sensitized erbium-doped silica fiber for sensor applicationscitations
- 2005High-power and ultra-efficient operation of a Tm3+-doped silica fiber laser
- 2005Doppler velocimetry using self-mixing effect in a short Er-Yb-doped phosphate glass fiber lasercitations
- 2004High-power wavelength-tunable cladding-pumped rare-earth-doped silica fiber laserscitations
- 2004Recent advances in high power fiber lasers
- 2004Passively Q-switched thulium-doped silica fiber laser
- 2004Thulium-ytterbium co-doped fiber laser with 32W of output power in the 2 micron wavelength range
- 2004Efficient holmium-doped solid-state lasers pumped by a Tm-doped silica fiber lasercitations
- 2003Fiber lasers: flexible and functional solutions for today and the future
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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.