Yb doped
Lifetime quenching in Yb doped fibres
... the Yb ions can be quenched to a very small value, leading to a strong unbleachable ...various Yb doped lasers and amplifiers including Er:Yb codoped fibres as used in telecommunication amplifiers ...
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Theoretical Study of the Thermal Distribution in Yb-Doped Double-Clad Fiber Laser by Considering Different Heat Sources
... To improve pump absorption and increase the fraction of cladding modes overlap with the active core area, the rotational symmetry of the first clad must be broken with different shapes of first clad cross-section, in which ...
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Yb doped femtosecond lasers and their frequency doubling
... This chapter can be divided into two sections where the first relates to a description of ultrashort pulse generation while the subject of the second is solid state laser materials. The scene is set with a theoretical ...
201
Suppression of stimulated Raman scattering in a high power Yb doped fiber amplifier using a W type core with fundamental mode cut off
... An Yb-doped W-type fiber preform was fabricated in house using a standard MCVD and solution doping technique. The preform was further jacketed in order to increase the inner cladding size, for efficient ...
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Electron Irradiation and Photo Excitation Darkening and Bleaching of Yb Doped Silica Fibers: Comparison
... In the meantime, a few studies aimed at the charac- terization of susceptibility of YFs having different che- mical compositions under such irradiations as x-rays, quanta, and UV have been reported recently [15-17]. ...
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Laser cutting, wood, Yb-doped fibre laser.
... lasers, one possible solution is to employ a high-power fibre laser. Fibre lasers are attractive because their geometry allows for more simple thermal management than conventional solid- state lasers. The heat generated ...
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The effect of Yb3+ on corrosion of lead oxychloride tellurite glasses
... 2.6.1 Structure of tellurite glass 11 2.6.2 Halide-tellurite glasses 13 2.6.3 Yb doped tellurite glasses 13 2.6.4 Application of tellurite glass 14 2.7 X-ray diffraction of tellurite 15 2.8 Thermal ...
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RGB generation by four wave mixing in small core holey fibers
... In conclusion, we demonstrated a source of white light based on a picosecond green pump obtained from a frequency-doubled Yb-doped fiber laser which is converted by nonlinear effects in submicron-sized ...
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Hollow optical fibers and W type fibers for high power sources and suppression of the stimulated Raman scattering
... Hence, a single-mode core still remains an obvious choice for high beam quality. However, a single-mode (i.e., small) core requires a long fiber in the cladding-pumped configuration, because of the relatively low pump ...
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Soliton transmission and supercontinuum generation in holey fiber using a diode pumped ytterbium fiber source
... To achieve higher pulse energies we amplified the laser pulses using parabolic amplification in diode pumped Yb doped fiber amplifiers. Parabolic amplification occurs in fiber amplifiers with normal ...
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Parameter optimization simulation of high power yitterbium doped double-clad fiber laser
... on Yb-doped fiber laser focuses on the inclusion of fiber Bragg grating (FBG) into the cavity and also the use of Yb-doped fiber with double clad structure ...[1]. Yb +3 ion have ...
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Erbium:ytterbium co doped large core fiber laser with 297W continuous wave output power
... the Yb ions [6], [7]. This Yb co-doping improves the pump absorption which is necessary for power-scaling through ...than Yb-doped ones emitting at ...between Yb and Er ions [15], ...
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Etoposide enhances antitumor efficacy of MDR1-driven oncolytic adenovirus through autoupregulation of the MDR1 promoter activity
... virotherapy. YB-1 has pleiotropic functions in the cytoplasm and ...of YB-1. In clinical studies of YB-1 expression, nuclear or cytoplasmic localization of YB-1 is closely associated with the ...
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Investigation on the Microstructure and Mechanical Properties of Mg Al Yb Alloys
... Figure 6(a) shows the tensile properties of the alloys tested at room temperature. Compared to Mg-5Al alloy, although the difference was very slight, Mg-5Al-1Yb had the highest UTS. Meanwhile, the YS of the alloys ...
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YB-1 modulates the drug resistance of glioma cells by activation of MDM2/p53 pathway
... and YB-1-overexpressed ln308 cells after treatment with 0–200 µM TMZ for 48 ...that YB-1 facilitates glioma cells resistance to temozolomide by activation of MDM2/p53 ...of YB-1 led to activation of ...
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Solid State Synthesis of Metastable Ytterbium (II) Oxide
... of Yb metal powder was put into a BN crucible without a lid, which was put into a Mullite ceramic tube (50 × φ 42 × 500 mm) in the tube furnace (TMF-500 type, AS ONE Corporation, Osaka, Japan) as shown in Figure ...
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Bazro3:Yb Nanophosphor for Efficient Up-Conversion Light Emission
... conversion phosphors are thought for applications ranging from biotechnology [1, 2] to high power lasers [3–5]. Since inexpensive near-infrared (NIR) pump sources, such as solid-state lasers and semiconductor laser ...
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Identification of three new Alu Yb subfamilies by source tracking of recently integrated Alu Yb elements
... all Yb copies found in the human genome, 80% (2,545 of 3,179) are identified as human-specific (hsYb), that is, they became integrated into the human genome after the human–chimp divergence, and they only include ...
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High power (60mW) single frequency erbium:ytterbium codoped fiber laser
... Recent modelling of single frequency Yb:Er fibre laser.?, has pointed out that fibres with a high concentrationof Er and Yb ions should show reduced bottlenecking due to the increased Yb[r] ...
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GFP Fusion Proteins: A Solution or a Problem?
... of YB-1 localization upon stress stimuli we sought to generate a stable pool of cells constitutively expressing YB-1as a GFP fusion ...with YB-1-GFP cDNA cloned in pcDNA6/V5-His, a vector derived ...
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