Preparation of high purity Sm3+-doped Ga-Ge-As-Se glass and low-loss fiber

Shiryaev, V.S.; Суханов, М. В.; Velmuzhov, А.P.; Karaksina, E.V.; Kotereva, Т.V.; Снопатин, Г. Е.; Blagin, R.D.; Denker, B. I.; Galagan, B. I.; Колташев, В. В.; Плотниченко, В. Г.; Sverchkov, S. E.

doi:10.1016/j.jlumin.2021.118552

Cited by 10 publications

(3 citation statements)

References 33 publications

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“…Quartz optical fiber sensor has been studied for a long time. In 1970, the Corning Company successfully developed low-loss optical fiber, and remarkable achievements have been made in the structural design [ 65 , 66 , 67 ], experimental preparation [ 68 , 69 , 70 , 71 , 72 ], and application [ 73 , 74 , 75 , 76 , 77 ] of the sensor head. However, in order to solve the cross-sensitivity problem of quartz optic fiber sensors, structural modification is required, which leads to the sensor head being brittle and easy to break.…”

Section: The Structure Of Temperature Self-compensating Fiber Spr Sen...mentioning

confidence: 99%

Research Advances on Fiber-Optic SPR Sensors with Temperature Self-Compensation

Zhao

Wang

Han

et al. 2023

Sensors

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The fiber-optic surface plasmon resonance sensor has very promising applications in environmental monitoring, biochemical sensing, and medical diagnosis, due to the superiority of high sensitivity and novel label-free microstructure. However, the influence of ambient temperature is inevitable in practical sensing applications, and even the higher the sensitivity, the greater the influence. Therefore, how to eliminate temperature interference in the sensing process has become one of the hot issues of this research field in recent years, and some accomplishments have been achieved. This paper mainly reviews the research results on temperature self-compensating fiber-optic surface plasmon sensors. Firstly, it introduces the mechanism of a temperature self-compensating fiber-optic surface plasmon resonance sensor. Then, the latest development of temperature self-compensated sensor is reviewed from the perspective of various fiber-optic sensing structures. Finally, this paper discusses the most recent applications and development prospects of temperature self-compensated fiber-optic surface plasmon resonance sensors.

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Section: The Structure Of Temperature Self-compensating Fiber Spr Sen...mentioning

confidence: 99%

Research Advances on Fiber-Optic SPR Sensors with Temperature Self-Compensation

Zhao

Wang

Han

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…For example, recent studies have found that Sm 3+ gain fiber is expected to achieve emissions at 7–8 µm. [ 330 ] Gas‐filled antiresonant fibers may also be effective to extend to longer wavelengths, such as a 4.3 µm laser based on CO 2 gas‐filled antiresonant hollow‐core fibers. [ 318a ] Moreover, the preparation of high quality 2D material SAs is an effective pathway to realize ultrawideband absorption characteristics.…”

Section: Challenges and Outlooksmentioning

confidence: 99%

Advances and Challenges of Ultrafast Fiber Lasers in 2–4 µm Mid‐Infrared Spectral Regions

Zhang,

Wu,

Guang

et al. 2023

Laser & Photonics Reviews

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Mid‐infrared (mid‐IR) ultrafast lasers are widely employed in biomedicine, molecular spectroscopy, material processing, and nonlinear optics. With the improvement of fiber gain media and other fiber optical elements, low‐cost, compact, and high‐efficiency fiber lasers open up new opportunities for 2–4 µm pulse generations, which calls for a comprehensive review of their mode‐locking mechanisms, gain media, and fiber laser system performance. This paper, beginning with an overview of pulse‐generation technologies, reviews recent progress on 2–4 µm mid‐IR ultrafast fiber lasers, including Tm3+‐, Ho3+‐doped, Tm3+/Ho3+ codoped silicate fiber 2 µm lasers, and Er3+‐, Dy3+‐doped, and Ho3+/Pr3+ codoped ZBLAN fiber 2.5–4 µm lasers. Among them, the status of 2–4 µm ultrafast fiber lasers based on 2D material passive mode‐locking is emphatically discussed. Meanwhile, the novel advances on mode‐locking and gain fibers of mid‐IR ultrafast fiber lasers are explored. Furthermore, current and prospective applications of such laser systems are also introduced in detail. This review finally summarizes challenges associated with future development of mid‐IR ultrafast fiber lasers, which provides an outlook on how to achieve more desirable laser performance (e.g., higher average power, higher pulse energy, and longer emission wavelength) that can lead to more practical uses of such lasers.

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“…By contrast, α‐Al 2 O 3 , also known as “corundum,” is the thermodynamically and mechanically stable structural polymorph of alumina. As shown in Figure 1B, it has a rhombohedral structure 25–30 . This stable phase evolves through several polymorphic phase transformations of alumina (Equations and ) 31 .…”

Section: Introductionmentioning

confidence: 98%

Influence of sodium hydroxide on phase transformation of gamma alumina to alpha alumina

Farrokhnemoun,

Sajjadivand,

Parapari

et al. 2023

J Am Ceram Soc.

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Corundum and transition alumina powders are commonly produced through the Bayer process—that is, by digestion of bauxite in a sodium hydroxide solution, followed by gibbsite precipitation, which contains significant amounts of Na+ ions. During the de‐hydroxylation of gibbsite, Na+ is associated with retardation of the structural phase transformations between transition alumina and corundum (α‐Al2O3) phases, although the exact role of Na is unclear. The influence of Na+ ions on the phase transformation of γ‐Al2O3 to α‐alumina was investigated by varying the concentration of NaOH in aqueous γ‐Al2O3 suspensions. The phase transformation behavior of γ‐Al2O3 was monitored through thermal analysis, X‐ray diffraction, scanning electron microscope, X‐ray photoelectron spectrometer (XPS), and transmission electron microscope. As the Na concentration in γ‐alumina suspensions increased, the amount of α‐Al2O3 decreased in samples that were heat treated at 1200°C for 2 h. XPS analysis indicated that washing transition alumina powders with NH4OH solutions had decreased the surface concentration of Na+ and facilitated the phase transformation to α‐Al2O3.

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Preparation of high purity Sm3+-doped Ga-Ge-As-Se glass and low-loss fiber

Cited by 10 publications

References 33 publications

Research Advances on Fiber-Optic SPR Sensors with Temperature Self-Compensation

Research Advances on Fiber-Optic SPR Sensors with Temperature Self-Compensation

Advances and Challenges of Ultrafast Fiber Lasers in 2–4 µm Mid‐Infrared Spectral Regions

Influence of sodium hydroxide on phase transformation of gamma alumina to alpha alumina

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