Optimization and Dispersion Tailoring of Chalcogenide M-Type Fibers Using a Modified Genetic Algorithm

Article Optics

Modified genetic algorithm for high-efficiency dispersive waves emission at 3 μm

Zimiao Wang et al.

Summary: A modified genetic algorithm (MGA) is used to optimize the conversion efficiency of mid-infrared dispersive waves, increasing it from 1.5% to 2.29%. These results are useful for gas sensing and environmental monitoring.

OPTICS EXPRESS (2022)

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Article Chemistry, Multidisciplinary

Cubic Nonlinearity of Tellurite and Chalcogenide Glasses: Terahertz-Field-Induced Second Harmonic Generation vs. Optical Kerr Effect

Sergey Bodrov et al.

Summary: The third-order nonlinear susceptibilities chi((3))(-2 omega;omega,omega,0) and chi((3))(-omega;omega,-omega,omega) responsible for electric-field-induced second harmonic generation and the optical Kerr effect were measured and compared for tellurite and chalcogenide glasses. The study found that the nonresonant electronic nonlinearity plays a dominant role in these glasses.

APPLIED SCIENCES-BASEL (2022)

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Article Materials Science, Multidisciplinary

Ultrashort Pulse Retrieval from Experimental Spectra Transformed in Chalcogenide and Silica Fibers

Elena A. Anashkina et al.

Summary: The paper experimentally tests a non-interferometric method for retrieving pulses from three spectra, which has advantages of no time direction ambiguity and simple implementation. By testing a novel simple algorithm, successful retrieval and confirmation of ultra-short optical pulses in two different fiber materials were achieved.

FIBERS (2022)

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Article Engineering, Electrical & Electronic

Investigation of parametric gain and bandwidth of tellurite hybrid micro-structured fiber with four ZDWs

Rohaan Deb et al.

Summary: This work investigates the parametric gain and bandwidth of a highly non-linear tellurite hybrid microstructured optical fiber (HMOF) incorporating single pumping scheme across all four zero dispersion wavelengths (ZDWs). By proper tuning of the pumping condition and fiber properties, it is possible to achieve wider gain spectrum and bandwidth for fiber optic parametric amplifiers (FOPAs).

OPTICAL AND QUANTUM ELECTRONICS (2021)

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Article Multidisciplinary Sciences

100,000-spin coherent Ising machine

Toshimori Honjo et al.

Summary: Computers based on physical systems, such as the coherent Ising machine (CIM), show great potential in solving combinatorial optimization problems quickly and effectively, especially for large-scale graphs, with a broad range of applications in various fields such as machine learning.

SCIENCE ADVANCES (2021)

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Review Optics

Chalcogenide Glass Microfibers for Mid-Infrared Optics

Dawei Cai et al.

Summary: Optical microfibers (MFs) can guide light with tight optical confinement and strong evanescent fields, making them widely investigated for various applications. Chalcogenide glass (ChG) MFs, with their easy fabrication, broad-band transparency, and high nonlinearity, are promising for mid-IR optics and have been gaining increasing attention in recent years.

PHOTONICS (2021)

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Article Multidisciplinary Sciences