Lasers Utilising Tellurite Glass-Based Gain Media

Richards, Billy; Jha, Animesh

doi:10.1007/978-3-319-53038-3_6

Cited by 8 publications

(2 citation statements)

References 77 publications

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“…Tellurite glasses are of great interest for the development of microlasers in the twomicron range [18]. Current technologies allow producing low-loss tellurite glasses characterized by substantial solubility of rare-earth ions [27], which is beneficial in fabricating such photonic devices. Additionally, a high linear refractive index n~2 for tellurite glasses leads to an emission cross section higher than for silica glass with refractive index n~1.4 [27], since the cross section is proportional to (n 2 + 2) 2 /9n.…”

Section: Introductionmentioning

confidence: 99%

In-Band Pumped Thulium-Doped Tellurite Glass Microsphere Laser

2021

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Microresonator-based lasers in the two-micron range are interesting for extensive applications. Tm3+ ions provide high gain; therefore, they are promising for laser generation in the two-micron range in various matrices. We developed a simple theoretical model to describe Tm-doped glass microlasers generating in the 1.9–2 μm range with in-band pump at 1.55 μm. Using this model, we calculated threshold pump powers, laser generation wavelengths and slope efficiencies for different parameters of Tm-doped tellurite glass microspheres such as diameters, Q-factors, and thulium ion concentration. In addition, we produced a 320-μm tellurite glass microsphere doped with thulium ions with a concentration of 5·1019 cm−3. We attained lasing at 1.9 μm experimentally in the produced sample with a Q-factor of 106 pumped by a C-band narrow line laser.

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Section: Introductionmentioning

confidence: 99%

In-Band Pumped Thulium-Doped Tellurite Glass Microsphere Laser

2021

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“…The different Te-O structural units which make up tellurite glass also result in inhomogeneous broadening of rare earth ion photoluminescence bands and the possibility of yielding broadband gain devices [1], [5]. Rare earth doped tellurite glass in various forms has also been demonstrated to yield efficient and compact laser sources [6]. By using ULPD to create hybrid tellurite-silica glass material, it is possible to overcome some of tellurite glass' drawbacks, such as its physical and thermal fragility whilst retaining its ability to dissolve large rare earth ion concentrations without clustering [1].…”

Section: Introductionmentioning

confidence: 99%

Tm³⁺ Tellurite-Modified-Silica Glass Thin Films Fabricated Using Ultrafast Laser Plasma Doping

Richards

Boontan

Mann

et al. 2019

IEEE J. Select. Topics Quantum Electron.

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Thin glass films have been produced by implanting Tm 3+ doped and Tm 3+ /Er 3+ codoped tellurite glasses into silica substrates using ultrafast laser plasma doping for the first time. The resulting glass films had thicknesses of up to 2 µm, refractive indices of 1.5-1.65 and exhibited photoluminescence in the 1.5-2.1 µm wavelength region when excited with 808 nm and 976 nm laser diodes. The OH − content of the silica glass substrate was also found to have an effect on the Tm 3+ : 3 F 4 photoluminescence lifetime in the modified thin glass film layer, with the high OH − containing substrate exhibiting a shorter lifetime. Through optimization of the femtosecond laser ablation parameters, we have produced crack-free thin films of Tm 3+ doped tellurite-modified silica glass layers with good thickness uniformities of ±10 nm, and the refractive index of the modified layer is up to 13% higher than the bare substrate material.

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Judd-Ofelt parameters of RE3+-doped fluorotellurite glass (RE3+= Pr3+, Nd3+, Sm3+, Tb3+, Dy3+, Ho3+, Er3+, and Tm3+)

Lalla

Konstantinidis

Souza

et al. 2020

Journal of Alloys and Compounds

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Lasers Utilising Tellurite Glass-Based Gain Media

Cited by 8 publications

References 77 publications

In-Band Pumped Thulium-Doped Tellurite Glass Microsphere Laser

In-Band Pumped Thulium-Doped Tellurite Glass Microsphere Laser

Tm³⁺ Tellurite-Modified-Silica Glass Thin Films Fabricated Using Ultrafast Laser Plasma Doping

Judd-Ofelt parameters of RE3+-doped fluorotellurite glass (RE3+= Pr3+, Nd3+, Sm3+, Tb3+, Dy3+, Ho3+, Er3+, and Tm3+)

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Lasers Utilising Tellurite Glass-Based Gain Media

Cited by 8 publications

References 77 publications

In-Band Pumped Thulium-Doped Tellurite Glass Microsphere Laser

In-Band Pumped Thulium-Doped Tellurite Glass Microsphere Laser

Tm3+ Tellurite-Modified-Silica Glass Thin Films Fabricated Using Ultrafast Laser Plasma Doping

Judd-Ofelt parameters of RE3+-doped fluorotellurite glass (RE3+= Pr3+, Nd3+, Sm3+, Tb3+, Dy3+, Ho3+, Er3+, and Tm3+)

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Tm³⁺ Tellurite-Modified-Silica Glass Thin Films Fabricated Using Ultrafast Laser Plasma Doping