Efficiency improvement of up–conversion luminescence of Yb3+/Tm3+ co-doped tellurite glass microsphere

Huang, Yantang; Zhuang, Shijian; Peng, Longxiang; Wu, Jinshu; Liao, Tingdi; Xu, Canhua; Duan, Yafang

doi:10.1016/j.jallcom.2018.03.012

Cited by 15 publications

(5 citation statements)

References 32 publications

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“…It is worthy to be noted that the threshold of the GC microsphere is two orders of magnitude lower than that of the Tm 3+ -doped ZBALN microsphere (20 mW) 18 , and also lower than that of the silica microsphere covered with a Yb 3+ /Tm 3+ doped polymethyl methacrylate lm (~ 300 µW) 3 . Moreover, although Tm 3+ -doped GC microspheres have exhibited enhanced laser output at 2.0 µm 26 , their blue UC laser performance remains unexplored to date 32 .…”

Section: Experimental Setup and Simulation Of Coupling E Ciencymentioning

confidence: 99%

Robust low threshold full-color upconversion lasing in rare-earth activated nanocrystal-in-glass microcavity

Dong,

Gao,

Cui

et al. 2024

Preprint

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Visible light microlasers are essential building blocks for wide-ranging applications from integrated photonics to quantum computing. However, achieving low-threshold (µW), continuous-wave (CW) visible light lasing at room temperature (RT) has been a challenge because of the formidable requirement of population inversion at short wavelengths. Rare-earth (RE)-activated microcavities, featuring the merits of high-quality factor (Q) and small mode volume of whispering gallery modes, offer the great opportunity for achieving infrared-to-visible upconversion (UC) lasing. Here, nano-glass composite (GC) microspheres are fabricated incorporating RE-doped fluoride nanocrystals with highly efficient UC emissions. These multi-phase composite microspheres exhibit a high Q value (≥ 105), comparable to that of conventional multi-component glass microspheres. The UC lasing at pure red, green and blue (RGB) are demonstrated from a tapered fiber-microsphere system, and the RGB color gamut covered by the lasing is 106.26% of the standard of national television system committee. The superiority of the GC microspheres is clearly manifested by the reduced (by 45%) lasing threshold and enhanced (more than four times) slope efficiency. This, together with the excellent long-term stability suggests a promising solution to achieving highly robust, low-threshold and versatile UC microlasers.

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Section: Experimental Setup and Simulation Of Coupling E Ciencymentioning

confidence: 99%

Robust low threshold full-color upconversion lasing in rare-earth activated nanocrystal-in-glass microcavity

Dong,

Gao,

Cui

et al. 2024

Preprint

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“…At first, the dual tapered optical fiber was fabricated by standard silica single-mode fiber with a step motor pulling setup and a hydrogen blaze heating system. The detail of the production process was depicted in [11]. Finally, we could get the dual tapered optical fiber, whose waist diameter was about 1~2 μm and loss was less than 0.5 dB, which was employed as a coupler not only for launching pump power into the microspheres but also for coupling out the emitting laser.…”

Section: Preparation Of Tapper Optical Fiber (Tof) and Microspheres W...mentioning

confidence: 99%

All-optical Tuning of Microsphere Whispering Gallery Mode Resonance Wavelength to Lock to the DFB Laser Wavelength for Using in CH4 Detection

Wang

Weng²,

Wang³

2023

J. Phys.: Conf. Ser.

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Methane is a flammable and explosive gas, which is the main component of mashgas and natural gas.Methane monitoring plays an important role in coal mine safety and natural gas.The high-Q whispering gallery mode (WGM) of optical microcavity has a long photon lifetime, which greatly prolongs the effective optical path between light and surroundings,and has the potential to be made into miniaturized and highly sensitive gas sensor device.In order to realize the high Q microcavity WGM enhancement light absorption methane gas sensor,the key technology is to lock the resonant frequency of the microsphere cavity to the DFB laser frequency.In order to ensure the intrinsic safety of the CH4 sensor, the resonance wavelength of the all-optically tuning microsphere cavity was studied, so that it was locked to the wavelength of the CH4 absorption peak of 1653.72nm. The resonant wavelength of the microsphere was tuned by injecting light along the fiber handle of the microsphere, and the refractive index of the microsphere was changed by absorbing light and converting heat with the coating of the sphere crown.

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“…For example, let's consider the case of a lasing emission by up-conversion phenomenon in WGM glass microspheres doped with rare earth ions [206][207][208][209][210]. The possibility to nucleate and grow noble metal nanostructures (i.e.…”

Section: New Insight Towards the Development Of Optical Devices Loade...mentioning

confidence: 99%

Towards a Glass New World: The Role of Ion-Exchange in Modern Technology

2021

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Glasses, in their different forms and compositions, have special properties that are not found in other materials. The combination of transparency and hardness at room temperature, combined with a suitable mechanical strength and excellent chemical durability, makes this material indispensable for many applications in different technological fields (as, for instance, the optical fibres which constitute the physical carrier for high-speed communication networks as well as the transducer for a wide range of high-performance sensors). For its part, ion-exchange from molten salts is a well-established, low-cost technology capable of modifying the chemical-physical properties of glass. The synergy between ion-exchange and glass has always been a happy marriage, from its ancient historical background for the realisation of wonderful artefacts, to the discovery of novel and fascinating solutions for modern technology (e.g., integrated optics). Getting inspiration from some hot topics related to the application context of this technique, the goal of this critical review is to show how ion-exchange in glass, far from being an obsolete process, can still have an important impact in everyday life, both at a merely commercial level as well as at that of frontier research.

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Efficiency improvement of up–conversion luminescence of Yb3+/Tm3+ co-doped tellurite glass microsphere

Cited by 15 publications

References 32 publications

Robust low threshold full-color upconversion lasing in rare-earth activated nanocrystal-in-glass microcavity

Robust low threshold full-color upconversion lasing in rare-earth activated nanocrystal-in-glass microcavity

All-optical Tuning of Microsphere Whispering Gallery Mode Resonance Wavelength to Lock to the DFB Laser Wavelength for Using in CH4 Detection

Towards a Glass New World: The Role of Ion-Exchange in Modern Technology

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