Characterization and comparison of Yb^3+-doped YA1O_3 perovskite crystals (Yb:YAP) with Yb^3+-doped Y_3Al_5O_12 garnet crystals (Yb:YAG) for laser application

Boulon, G.; Guyot, Y.; Cañibano, H.; Hraiech, S.; Yoshikawa, Akira

doi:10.1364/josab.25.000884

Cited by 60 publications

(17 citation statements)

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“…31 In all of the Yb 3+ -doped materials, impurities observed from the upconversion energy transfer process, contribute to the quenching of Yb 3+ ions either in glasses 30 or in crystals. 32 Detailed analysis of the consequent gain in laser materials has been presented by Boulon et al 33 3.2.5. Energy level diagram of Yb 3+ ions in MgAl 2 O 4 nanospinels.…”

Section: Sample Ofmentioning

confidence: 99%

Structural and spectroscopic properties of Yb³⁺-doped MgAl₂O₄nanocrystalline spinel

et al. 2014

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Magnesium spinel (MgAl2O4) powders doped with Yb(3+) ions have been synthesized by a sol-gel method and heat-treated in the range of 700-1000 °C for 3 h. XRD patterns indicated that the powders have a cubic structure with high crystallite dispersion. Nanoparticles in the range of 10-30 nm are obtained as a function of the dopant concentration and sintering temperature. The main Yb(3+) zero-phonon line is located at 976 nm. The spectroscopic properties of the Yb(3+) ions are characterized by broad absorption spectroscopy and emission spectroscopy. Even at low temperature, the spectra reveal a strong distorted spinel lattice due to the high inversion rate between Mg(2+) tetrahedral sites and Al(3+) octahedral sites. The substitution of Mg(2+) ions by Yb(3+) ions favors the creation of Yb(3+) ion pairs which are observed in the cooperative luminescence spectra at around 500 nm. The luminescence decays are influenced by both the Yb(3+) content, the energy transfer between ions and by the presence of pairs and aggregates. Detailed analysis of the observed structural and spectroscopic measurements has been described in this manuscript.

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Section: Sample Ofmentioning

confidence: 99%

Structural and spectroscopic properties of Yb³⁺-doped MgAl₂O₄nanocrystalline spinel

et al. 2014

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“…It was shown that Yb 3+ ͑15 at.% ͒ : YAP crystal is a potential candidate for compact, efficient thin-chip lasers; in addition, its broad emission band allows the generation of ultrashort pulses. The latest description and analysis of Yb:YAP crystal growth, structural characterization, and spectroscopic properties were published in [21]. In this study, Boulon et al reported experimental decay-time dependence on Yb 3+ -dopant concentrations, and room-temperature absorption and emission cross section spectra along the a axis were given.…”

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confidence: 86%

Spectroscopy and femtosecond laser performance of Yb3+:YAlO3 crystal

Kisel

Kurilchik

Kuleshov

et al. 2008

Advanced Solid-State Photonics

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We report what we believe to be the first demonstration of cw and passively mode-locked Yb 3+ : YAlO 3 (Yb:YAP) laser operation under diode pumping. Spectroscopic properties of a 0.6 at.% Yb 3+ -doped YAP single crystal were investigated. Output power up to 1.2 W with slope efficiency of 64.5% in the cw regime and 225 fs pulse duration with average power of 0.8 W from a mode-locked Yb:YAP laser were demonstrated. OCIS codes: 140.3380, 140.3480, 140.3615, 140.4050, 140.5680. Present widespread use of efficient InGaAs laser diodes and favorable electronic structure of ytterbium ions stimulate interest in Yb 3+ -doped solid-state materials for diode-pumped high-power lasers emitting in the spectral range near 1 m. Broad gain bandwidth of these media has stimulated their applications for generation of ultrashort pulses in modelocked regime. © 2008 Optical Society of AmericaSo far, the highest average output power of 60 W with ultrashort pulses has been obtained with a thindisk Yb:YAG laser, passively mode-locked with a semiconductor saturable-absorber mirror (SESAM) [1]. The thermal conductivity of YAG is about 13 W / ͑mK͒. However, the emission bandwidth of Yb:YAG limits the pulse duration to only 700-800 fs in a thin-disk laser, or to 340 fs in a bulk laser [2]. Much shorter pulse durations were reported for a number of crystals with broader emission bands, such as Yb-doped YVO 4 [19,20]. It was shown that Yb 3+ ͑15 at.% ͒ : YAP crystal is a potential candidate for compact, efficient thin-chip lasers; in addition, its broad emission band allows the generation of ultrashort pulses. The latest description and analysis of Yb:YAP crystal growth, structural characterization, and spectroscopic properties were published in [21]. In this study, Boulon et al. reported experimental decay-time dependence on Yb 3+ -dopant concentrations, and room-temperature absorption and emission cross section spectra along the a axis were given. Radiative lifetime of an upper-laser level was estimated there to be 0.6 ms, which has a large discrepancy with the decay time published in [19].In our study polarized absorption spectra of Yb 3+ ͑0.6 at.% ͒ : YAP at room temperature were measured by a Varian CARY-5000 spectrophotometer. The content of ytterbium ions in crystal was measured by means of a Tescan VEGA II LMU scanning electron microscope with Oxford INCA Energy 350 energy dispersive x-ray analyzer and was estimated to be 1.17ϫ 10 20 cm −3 . The cross-section spectra for three polarizations are shown in Fig. 1. Strong absorption is found for E ʈ c light polarization. A peak absorption cross-section at 978.2 nm is about 6.6 ϫ 10 −20 cm 2 , however, with comparatively narrow bandwidth of about 4 nm. For a and b polarizations maximal absorption cross sections near 978.5 nm are 0.97ϫ 10 −20 cm 2 and 1.38ϫ 10 −20 cm 2 , respectively. The stimulated emission cross sections are also given in Fig. 1. They were calculated by use of a modified

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“…-статистические суммы нижнего и верхнего состояний соответственно. Вероятность спонтанного излучения A ji и излучательное время жизни возбужденного состояния τ r можно рассчитать по классической формуле Фюхтбауэра-Ладенбурга, используя зависимости сечения поглощения от длины волны [16]:…”

Section: экспериментunclassified

Спектрально-люминесцентные свойства Yb-=SUP=-3+-=/SUP=- в SOCl-=SUB=-2-=/SUB=--GaCl-=SUB=-3-=/SUB=-

Серёгина¹,

Серёгин²,

Тихонов³

2020

Журнал Технической Физики

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The absorption, luminescence, and luminescent lifetimes of the excited state of Yb3+ in SOCl2 – GaCl3 – Yb3+ solutions were measured. Information was obtained on the Stark splitting of energy levels, absorption cross sections, and stimulated emission of Yb3+ in SOCl2 – GaCl3 – Yb3+. The possibility of creating a ytterbium laser based on inorganic liquid SOCl2 – GaCl3 – Yb3+ with diode pumping was considered.

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Characterization and comparison of Yb^3+-doped YA1O_3 perovskite crystals (Yb:YAP) with Yb^3+-doped Y_3Al_5O_12 garnet crystals (Yb:YAG) for laser application

Cited by 60 publications

References 38 publications

Structural and spectroscopic properties of Yb³⁺-doped MgAl₂O₄nanocrystalline spinel

Structural and spectroscopic properties of Yb³⁺-doped MgAl₂O₄nanocrystalline spinel

Spectroscopy and femtosecond laser performance of Yb3+:YAlO3 crystal

Спектрально-люминесцентные свойства Yb-=SUP=-3+-=/SUP=- в SOCl-=SUB=-2-=/SUB=--GaCl-=SUB=-3-=/SUB=-

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Characterization and comparison of Yb^3+-doped YA1O_3 perovskite crystals (Yb:YAP) with Yb^3+-doped Y_3Al_5O_12 garnet crystals (Yb:YAG) for laser application

Cited by 60 publications

References 38 publications

Structural and spectroscopic properties of Yb3+-doped MgAl2O4nanocrystalline spinel

Structural and spectroscopic properties of Yb3+-doped MgAl2O4nanocrystalline spinel

Spectroscopy and femtosecond laser performance of Yb3+:YAlO3 crystal

Спектрально-люминесцентные свойства Yb-=SUP=-3+-=/SUP=- в SOCl-=SUB=-2-=/SUB=--GaCl-=SUB=-3-=/SUB=-

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Structural and spectroscopic properties of Yb³⁺-doped MgAl₂O₄nanocrystalline spinel

Structural and spectroscopic properties of Yb³⁺-doped MgAl₂O₄nanocrystalline spinel