Passively Q-switched Ho:LuAG laser with near-diffraction-limited beam quality

Yao, Bing; Cui, Zheng; Duan, Xiaoming; Yang, Yu; Du, Yi; Yuan, Jinhe; Shen, Yingjie

doi:10.1007/s00340-014-5976-x

Cited by 10 publications

(14 citation statements)

References 20 publications

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“…PLA has been investigated either alone, as a copolymer or blended with other biopolymers in porous forms (e.g., membranes or scaffolds) for numerous biomedical applications including wound dressing, soft tissue repair and bone and cartilage grafting. [29][30][31][32] In this study, PLA porous films with different pore sizes were produced and their cytocompatibility was assessed using MG63 cell line.…”

Section: Introductionmentioning

confidence: 99%

Single Solvent‐Based Film Casting Method for the Production of Porous Polymer Films

Hossain

Felfel

Ogbilikana

et al. 2018

Macro Materials & Eng

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A single solvent‐based film casting process for fabricating porous polymer films is developed in this study. The porous film is produced by mixing concentrated polylactic acid (PLA)/chloroform solution (20 wt%) and fresh chloroform solvent is followed by film casting. The average pore sizes of the films produced are seen to increase from 2.1 (±0.1) µm to 6.4 (±0.2) µm with increasing ratio of concentrated PLA solution and fresh solvent from 1:2 to 1:4. Functional groups of PLA after casting into porous film are confirmed via Fourier transform infrared spectroscopy analysis. Cytocompatibility studies (via Alamar Blue assessment) utilizing MG‐63 cells on the porous PLA films reveal an increase in cell metabolic activity up to 8 d postseeding. In addition, these direct cell culture studies show that the porous membranes support cell adhesion and growth not only on the surface but also through the porous structures of the membrane, highlighting the suitability of these porous films in tissue engineering applications.

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Section: Introductionmentioning

confidence: 99%

Single Solvent‐Based Film Casting Method for the Production of Porous Polymer Films

Hossain

Felfel

Ogbilikana

et al. 2018

Macro Materials & Eng

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“…With regards to Ho 3+ -doped crystals, Ho:Y 3 Al 5 O 12 (Ho:YAG) and Ho:Lu 3 Al 5 O 12 (Ho:LuAG) have been studied well [5][6][7][8][9][10][11][12][13][14][15]. LuAG is an isomorphism to YAG, and both of them are oxide crystals with cubic garnet structure, and the lattice constant of YAG (12.0075 Å) is slightly larger than that of LuAG (11.9164 Å) [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…In high power laser applications, these will significantly increase the thermal loading and reduce the effective upper level lifetime [12,[18][19][20]. Due to very low quantum defect, inband pumping (resonant pumping 5 I 8 → 5 I 7 ) with Tm-doped solid state lasers [9,11,21,22], Tm fiber lasers [5,7,8,10,14,23,24] and 1.9 μm diode lasers [13] can overcome the energy-sharing problem in the Tm and Ho co-doped system, improve the slope efficiency, reduce the waste heat and encourage the good beam quality. In this paper, Ho:LuAG ceramic laser resonantly pumped by a Tm fiber laser was presented.…”

Section: Introductionmentioning

confidence: 99%

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Energy level systems and transitions of Ho:LuAG laser resonantly pumped by a narrow line-width Tm fiber laser

et al. 2016

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We presented a Ho:LuAG ceramic laser in-band pumped by a narrow emission line-width Tm fiber laser at 1907 nm. All of potential transitions between 5I7 and 5I8 manifold were discussed to form the Ho's in-band-pump energy level systems, which were not described in details earlier. For the emission band centered at ~2095 nm, both laser absorption and emission transition separately consisted of two groups were first analyzed and observed. Using output couplers (OCs) with different transmittances (T = 6, 10 and 20%), the similar ~0.5 W continuous-wave (CW) output power under an incident pump power of ~4.9 W was obtained, with twin (or triplet) emission bands respectively. The blue shift of center emission wavelengths was observed with the increase of transmittances.

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“…PQS provides more compactness and simplicity than an active modulator which obviously cannot be implemented in a microchip device and such a scheme yields shorter pulses associated with the reduced cavity length. We are aware of few reports on inband-pumped PQS Ho lasers using Cr:ZnS, Cr:ZnSe crystals [17][18][19][20] or graphene [21,22] as SA. However, PQS in-bandpumped Ho microchip laser has not been presented, to the best of our knowledge.…”

Section: Introductionmentioning

confidence: 99%

Ho:KLu(WO<sub>4</sub>)<sub>2</sub> Microchip Laser Q-Switched by a PbS Quantum-Dot-Doped Glass

Loiko

Serres

Mateos

et al. 2015

IEEE Photon. Technol. Lett.

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We report on passive Q-switching of a Ho:KLu(WO 4 ) 2 (Ho:KLuW) microchip laser in-band-pumped by a Tm:KLuW laser at ~1.96 μm. As a saturable absorber, PbSquantum-dot-doped glass was used which exhibits a saturation intensity of ~3 MW/cm 2 near 2 μm. Maximum average output power of 84 mW was achieved from the Ho laser at 2.061 µm with a slope efficiency of 42% (with respect to the absorbed pump power). The shortest pulse duration was 30 ns. In the continuous-wave mode, the maximum output power of the Ho laser reached 530 mW at 2.08 µm with a slope efficiency of 88%.Index Terms-double tungstates, holmium, in-band-pumping, microchip laser, Q-switching, quantum dots.

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Passively Q-switched Ho:LuAG laser with near-diffraction-limited beam quality

Cited by 10 publications

References 20 publications

Single Solvent‐Based Film Casting Method for the Production of Porous Polymer Films

Single Solvent‐Based Film Casting Method for the Production of Porous Polymer Films

Energy level systems and transitions of Ho:LuAG laser resonantly pumped by a narrow line-width Tm fiber laser

Ho:KLu(WO<sub>4</sub>)<sub>2</sub> Microchip Laser Q-Switched by a PbS Quantum-Dot-Doped Glass

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