In-fiber temperature sensor based on green up-conversion luminescence in an Er<sup>3+</sup>-Yb<sup>3+</sup>co-doped tellurite glass microsphere

Zhang, Meng; Li, Angzhen; Yu, Jibo; Lu, Xiaosong; Wang, Shunbin; Lewis, Elfed; Farrell, Gerald; Yuan, Libo; Wang, Pengfei

doi:10.1364/ol.44.003214

Cited by 21 publications

(9 citation statements)

References 21 publications

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“…Moreover, compared with the MOF based in-fiber active microcavity where the microsphere is anchored on the tip, the microsphere can be embedded into the cone region produced by half-collapse of the cladding for the micro-structure hollow fiber, and this significantly enhances the stability of the coupling structure. Figure 40 a and b show the microscopic image and schematic of the cross section of a suspended tri-core hollow fiber (STCHF) [ 42 ], respectively. Due to the asymmetry of the three suspended cores, the coupling of microsphere and STCHF is similar to the case ④, as shown in Fig.…”

Section: In-fiber Resonator With Active Microspherementioning

confidence: 99%

Recent progress of in-fiber WGM microsphere resonator

Yang

Zhang

2023

Front. Optoelectron.

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In-fiber whispering gallery mode (WGM) microsphere resonators have received remarkable attention due to the superiorities of compact structure, high stability and self-alignment. As an in-fiber structure, WGM microsphere resonators have been demonstrated in various applications, such as sensors, filters and lasers, which have significant impacts on modern optics. Herein, we review recent progress of in-fiber WGM microsphere resonators, which involve fibers of diverse structures and microspheres of different materials. First, a brief introduction is given to in-fiber WGM microsphere resonators, from structures to applications. Then, we focus on recent progresses in this field, including in-fiber couplers based on conventional fibers, capillaries and micro-structure hollow fibers, and passive/active microspheres. Finally, future developments of the in-fiber WGM microsphere resonators are envisioned. Graphical Abstract

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Section: In-fiber Resonator With Active Microspherementioning

confidence: 99%

Recent progress of in-fiber WGM microsphere resonator

Yang

Zhang

2023

Front. Optoelectron.

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“…For the microspheres with uniform size of 50 μm used in this experiment, the flow rate and temperature are 2L/min and 800 o C, respectively. A more detailed description of the preparation process is described in previous work published by authors of this article [26]. Fig.…”

Section: Theoretical Analysis and Device Fabricationmentioning

confidence: 99%

“…Such microsphere resonators can be relatively easily integrated within fiber structures due to their small size while still maintaining excellent optical performance [23][24][25]. In previous work reported by the authors of this article, a form of photonic device which integrates a compound microsphere inside a suspended tri-core hollow fiber (STCHF) structure was described [26]. The temperature sensing properties of the device were also characterized in [26].…”

Section: Introductionmentioning

confidence: 96%

“…In previous work reported by the authors of this article, a form of photonic device which integrates a compound microsphere inside a suspended tri-core hollow fiber (STCHF) structure was described [26]. The temperature sensing properties of the device were also characterized in [26]. By choosing an appropriate host material and an effective tuning approach for a compound microsphere located inside an STCHF structure, it is possible to develop a novel optical device which can be widely applied in multicolor displays, optical sensors and lasers.…”

Section: Introductionmentioning

confidence: 99%

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Color Variation of the Up-Conversion Luminescence in Er³⁺-Yb³⁺ Co-Doped Lead Germanate Glasses and Microsphere Integrated Devices

Zhang

Tian

Wang

et al. 2020

J. Lightwave Technol.

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Lead germanate glass samples co-doped with different Er 3+ /Yb 3+ concentrations were prepared and the color variation of the up-conversion emissions in these glasses was observed using a 980 nm laser pump. A practical optical integrated device based on Er 3+ -Yb 3+ co-doped lead germanate glass microsphere and a special fiber structure, consisting of single mode fiber (SMF), multimode fiber (MMF) and a suspended tricore hollow fiber (STCHF) is described. As the pump light is coupled into the microsphere from the cores suspended inside the STCHF, the microsphere fixed in the air hole of the STCHF is excited and the up-conversion emissions are observed. Furthermore, when the pump power is increased, the luminescence output color of the microsphere can be readily tuned from yellow to green due to the change of the luminescence intensity ratio of the red to green emissions. This in-fiber microsphere resonator integrated device has the potential to be widely applied in multicolor displays, optical sensors and laser devices owing to its compact structure and excellent performance.

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“…As far as we know, Raman generation has not yet been demonstrated in microresonators made of tellurite glasses. This fact seems very surprising, taking into account the great attention paid by different research groups to tellurite microresonators over the past 20 years, − as well as the huge successes achieved in the field of nonlinear optics exploiting Raman effects in tellurite glass fibers, including supercontinuum generation, , soliton self-frequency shift, and a widely tunable continuous wave (CW) Raman laser . We also note that technologies for integrating tellurite microresonators on chips are currently being actively developed, , which clearly indicates the great interest that they represent for real applications.…”

Section: Introductionmentioning

confidence: 99%

Switchable Cascade Raman Lasing in a Tellurite Glass Microresonator

Anashkina

Андрианов

2023

ACS Photonics

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Light transformations based on stimulated Raman scattering in microresonators with whispering gallery modes have tremendous potential for implementing compact, widely tunable, low-threshold coherent light sources attractive for applications. Search for new microlaser materials is of great interest since they may extend laser capabilities and offer new regimes of controllable Raman-assisted generation. We obtained Raman lasing in a 30 μm microsphere made of tellurite glass with huge Raman gain and ultrabroad bandwidth providing switchable light conversion with maximum frequency shift over 27 THz for the first cascade. We attained different steady-state regimes, including switchable and simultaneous generation at 1.73 and 1.8 μm with a pump at 1.55 μm as well as at 1.77, 1.85, and 2.01 μm with a pump at 1.57 μm. We analytically explained the nontrivial dynamics with mode competition due to direct and cascade stimulated Raman scattering, confirming the coexistence of different interacting modes and their controllable switching with a change in the pump parameters. To the best of our knowledge, this work is the first demonstration of Raman lasing in tellurite glass microresonators.

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In-fiber temperature sensor based on green up-conversion luminescence in an Er³⁺-Yb³⁺co-doped tellurite glass microsphere

Cited by 21 publications

References 21 publications

Recent progress of in-fiber WGM microsphere resonator

Recent progress of in-fiber WGM microsphere resonator

Color Variation of the Up-Conversion Luminescence in Er³⁺-Yb³⁺ Co-Doped Lead Germanate Glasses and Microsphere Integrated Devices

Switchable Cascade Raman Lasing in a Tellurite Glass Microresonator

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In-fiber temperature sensor based on green up-conversion luminescence in an Er3+-Yb3+co-doped tellurite glass microsphere

Cited by 21 publications

References 21 publications

Recent progress of in-fiber WGM microsphere resonator

Recent progress of in-fiber WGM microsphere resonator

Color Variation of the Up-Conversion Luminescence in Er3+-Yb3+ Co-Doped Lead Germanate Glasses and Microsphere Integrated Devices

Switchable Cascade Raman Lasing in a Tellurite Glass Microresonator

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Product

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In-fiber temperature sensor based on green up-conversion luminescence in an Er³⁺-Yb³⁺co-doped tellurite glass microsphere

Color Variation of the Up-Conversion Luminescence in Er³⁺-Yb³⁺ Co-Doped Lead Germanate Glasses and Microsphere Integrated Devices