High‐Performance Integrated Optics with Tellurite Glasses: Status and Prospects

Madden, Steve; Vu, Khu

doi:10.1111/ijag.12002

Cited by 28 publications

(10 citation statements)

References 85 publications

(135 reference statements)

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“…On the other hand, in multi‐component systems such as Na 2 O‐ZnO‐TeO 2 , thermally stable TeO 2 ‐based glasses, that is, tellurite glasses, are prepared easily using a conventional melt‐quenching method . Tellurite glasses have attracted much attention due to their unique properties such as low phonon energy, low melting temperature, a wide optical transmission window (0.4‐5 μm), and high linear and nonlinear optical properties and, therefore, have been considered as promising materials for photonic devices such as optical switches and broadband optical amplifiers . Yakhkind was the first researcher who determined the high values of oxide ion refraction for some tellurite glasses and established that the molar refraction of binary tungsten and barium tellurite glasses depends linearly on molar composition.…”

Section: Introductionmentioning

confidence: 99%

Features of electronic polarizability and approach to unique properties in tellurite glasses

Komatsu

Dimitrov

2019

Int J of Appl Glass Sci

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Tellurite glasses showing unique properties such as low phonon energy and high linear and nonlinear optical properties have been considered as promising materials for photonic device applications. The present article reviews the current status of the electronic polarizability in binary and ternary tellurite glasses and approaches their unique properties. Tellurite glasses consisting of basic modifier oxides (eg, Na2O, ZnO) and basic conditional glass forming oxide (TeO2) exhibit the features of high electronic polarizability and weak chemical bond strength, that is, refractive index‐based large oxide ion polarizability αO2‐(no), large optical basicity ∧(no), small interionic interaction parameter A(no), and small single bond strength BM‐O. The values of αO2‐(no), ∧(no), and A(no) in several tellurite glasses containing WO3, Nb2O5, and Bi2O3 were estimated in this article, and a good correlation was confirmed between ∧(no) and A(no). Unique properties of low glass transition temperature, fragile structural relaxation behavior, poor mechanical properties, high third‐order nonlinear optical susceptibilities in tellurite glasses were discussed from the point of electronic polarizability.

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Section: Introductionmentioning

confidence: 99%

Features of electronic polarizability and approach to unique properties in tellurite glasses

Komatsu

Dimitrov

2019

Int J of Appl Glass Sci

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“…Chalcogenide glasses are actively investigated as photonic materials [147][148][149] and exhibit a wide transparency window in the near-and mid-IR. For example, As 2 S 3 and As 2 Se 3 have bandgap energies around 2.26 eV [150,151] and 1.77 eV [152], and they are transparent up to 12 and 15 µm [153], respectively.…”

Section: Methodsmentioning

confidence: 99%

Nonlinear Group IV photonics based on silicon and germanium: from near-infrared to mid-infrared

et al. 2014

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Group IV photonics hold great potential for nonlinear applications in the near-and mid-infrared (IR) wavelength ranges, exhibiting strong nonlinearities in bulk materials, high index contrast, CMOS compatibility, and cost-effectiveness. In this paper, we review our recent numerical work on various types of silicon and germanium waveguides for octave-spanning ultrafast nonlinear applications. We discuss the material properties of silicon, silicon nitride, silicon nano-crystals, silica, germanium, and chalcogenide glasses including arsenic sulfide and arsenic selenide to use them for waveguide core, cladding and slot layer. The waveguides are analyzed and improved for four spectrum ranges from visible, near-IR to mid-IR, with material dispersion given by Sellmeier equations and wavelength-dependent nonlinear Kerr index taken into account. Broadband dispersion engineering is emphasized as a critical approach to achieving on-chip octavespanning nonlinear functions. These include octave-wide supercontinuum generation, ultrashort pulse compression to sub-cycle level, and mode-locked Kerr frequency comb generation based on few-cycle cavity solitons, which are potentially useful for next-generation optical communications, signal processing, imaging and sensing applications.

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“…Recently, SC spectrum generation, especially the broadening of the SC spectrum, has attracted much attention. Compared with fluoride fibers and tellurite fibers that work in the near‐IR region, chalcogenide fibers have wider transmission regions and higher nonlinear coefficients . Thus, MIR–SC generation can be achieved easily .…”

Section: Introductionmentioning

confidence: 99%

1.8–13 μm supercontinuum generation by pumping at normal dispersion regime of As–Se–Te glass fiber

Yang

et al. 2019

J Am Ceram Soc

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Mid‐infrared (MIR) band supercontinuum (SC) light source has highly important application prospects in aerospace, biomedicine, MIR sensing, and pollutant monitoring. As–Se–Te glass has high nonlinear refractive index, wide MIR transmission range and weak crystallization ability. As40Se40Te20 glass fiber is suitable for producing wide MIR–SC spectrum. In this study, purified As40Se40Te20 glass was prepared and unclad and step‐index fibers were drawn. An unclad As40Se40Te20 glass fiber with minimum loss of 1.7 dB/m at 8.8 μm was obtained. By pumping the unclad fiber in the normal dispersion region at 5 μm, we recorded the broadest SC generation spectrum, which covered 1.8–13 μm with a 30 dB spectral flatness, from a fiber with 15 cm length. Besides, As40Se40Te20/As40Se42Te18 step‐index fiber with minimum loss of 5.6 dB/m at 5 μm was drawn from isolation extruded preform. The step‐index fiber was pumped in the normal dispersion region at 5 μm, and the SC spectrum, covering 2.1–11.2 μm with a 40 dB spectral flatness, was recorded from a fiber with 15 cm length. The SC spectrum, which was achieved by pumping the As40Se40Te20 fiber, covered almost all the transparent range of material.

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High‐Performance Integrated Optics with Tellurite Glasses: Status and Prospects

Cited by 28 publications

References 85 publications

Features of electronic polarizability and approach to unique properties in tellurite glasses

Features of electronic polarizability and approach to unique properties in tellurite glasses

Nonlinear Group IV photonics based on silicon and germanium: from near-infrared to mid-infrared

1.8–13 μm supercontinuum generation by pumping at normal dispersion regime of As–Se–Te glass fiber

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