scholarly journals Design and Dispersion Control of Microstructured Multicore Tellurite Glass Fibers with In-Phase and Out-of-Phase Supermodes

Photonics ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 113
Author(s):  
Elena A. Anashkina ◽  
Alexey V. Andrianov
Keyword(s):  
Optical Fibers ◽  
Nonlinear Optical ◽  
Tellurite Glass ◽  
Group Velocity Dispersion ◽  
Glass Fibers ◽  
Large Coupling ◽  
Nonlinear Properties ◽  
Core Fiber ◽  
Analysis Of Dispersion ◽  
Er Doped

High nonlinearity and transparency in the 1–5 μm spectral range make tellurite glass fibers highly interesting for the development of nonlinear optical devices. For nonlinear optical fibers, group velocity dispersion that can be controlled by microstructuring is also of great importance. In this work, we present a comprehensive numerical analysis of dispersion and nonlinear properties of microstructured two-, four-, six-, and eight-core tellurite glass fibers for in-phase and out-of-phase supermodes and compare them with the results for one-core fibers in the near- and mid-infrared ranges. Out-of-phase supermodes in tellurite multicore fibers are studied for the first time, to the best of our knowledge. The dispersion curves for in-phase and out-of-phase supermodes are shifted from the dispersion curve for one-core fiber in opposite directions; the effect is stronger for large coupling between the fields in individual cores. The zero dispersion wavelengths of in-phase and out-of-phase supermodes shift to opposite sides with respect to the zero-dispersion wavelength of a one-core fiber. For out-of-phase supermodes, the dispersion can be anomalous even at 1.55 μm, corresponding to the operating wavelength of Er-doped fiber lasers.

Potential Application of Bi(Pb)-Ca-Sr-Cu-O Glasses for Preparation of Integrated Optical Fibers

1989 ◽  
Vol 172 ◽  
Author(s):  
Haixing Zheng ◽  
J. D. Mackenzie
Keyword(s):  
Optical Fibers ◽  
Nonlinear Optical ◽  
Glass Fibers ◽  
High Temperature Superconductors ◽  
Optical Modulator ◽  
Infrared Transmission ◽  
Fiber System ◽  
Nonlinear Optical Susceptibility ◽  
Optical Susceptibility ◽  
Integrated Optical

AbstractThe infrared transmission, and possible high nonlinear optical susceptibility of Bi(Pb)-Ca- Sr-Cu-O glasses as well as their being the precursors for high temperature superconductors make them potential materials for integrated optical fibers. In this work, the glass formation and the fabrication of glass fibers have been investigated. The properties of the glasses have been studied. The infrared cutoff of the glasses is above 7 μm, and a high refractive index (˜ 2.9) and a high density (˜ 6 g/cm3) indicate the possible high nonlinear optical susceptibility. After being heat treated at high temperatures, the glasses become superconductors which show the response to the optical radiation due to the bolometric effect. Fabrication of an integrated optical fiber system incorporating the transmitting medium, optical modulator and detectors is possible.

scholarly journals Application of the G'/G Expansion Method in Ultrashort Pulses in Nonlinear Optical Fibers

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Jiang Xing-Fang ◽  
Wang Jun ◽  
Wei Jian-Ping ◽  
Hua Ping
Keyword(s):  
Optical Fibers ◽  
Wavelength Division Multiplexing ◽  
Nonlinear Optical ◽  
Group Velocity Dispersion ◽  
Ultrashort Pulses ◽  
Expansion Method ◽  
Input Power ◽  
Trigonometric Function ◽  
High Order ◽  
Wavelength Division

With the increasing input power in optical fibers, the dispersion problem is becoming a severe restriction on wavelength division multiplexing (WDM). With the aid of solitons, in which the shape and speed can remain constant during propagation, it is expected that the transmission of nonlinear ultrashort pulses in optical fibers can effectively control the dispersion. The propagation of a nonlinear ultrashort laser pulse in an optical fiber, which fits the high-order nonlinear Schrödinger equation (NLSE), has been solved using the G'/G expansion method. Group velocity dispersion, self-phase modulation, the fourth-order dispersion, and the fifth-order nonlinearity of the high-order NLSE were taken into consideration. A series of solutions has been obtained such as the solitary wave solutions of kink, inverse kink, the tangent trigonometric function, and the cotangent trigonometric function. The results have shown that the G'/G expansion method is an effective way to obtain the exact solutions for the high-order NLSE, and it provides a theoretical basis for the transmission of ultrashort pulses in nonlinear optical fibers.

Fabrication of highly nonlinear optical fibers with tellurite glass core and phosphate glass cladding

2012 ◽  
Vol 34 (11) ◽  
pp. 1795-1803 ◽  
Author(s):  
Hoang Tuan Tong ◽  
Chihiro Kito ◽  
Takenobu Suzuki ◽  
Yasutake Ohishi
Keyword(s):  
Optical Fibers ◽  
Phosphate Glass ◽  
Nonlinear Optical ◽  
Tellurite Glass ◽  
Highly Nonlinear

scholarly journals Nonlinear Optical Fibers, Their Properties, and Applications

2020 ◽  
Vol 6 (2) ◽  
pp. 121-126
Author(s):  
B. R. Ghimire
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Optical Fibers ◽  
Nonlinear Optical ◽  
Group Velocity Dispersion ◽  
Wavelength Dependence ◽  
Experimental Result ◽  
Material Dispersion ◽  
Waveguide Dispersion ◽  
Wavelength Absorption

Nonlinear optical properties and preparation of nonlinear optical fiber based on Bismuth oxide were described. Wavelength dependence of refractive index of ABH160 and B027 was studied and analyzed. Working and construction of optical ON-OFF switches, based on Bi-HNLF was reported. It was investigated that refractive index of ABH160 and Bo27 were found to be exponentially decaying as a function of wavelength. Absorption coefficient of ABH160 as a function of wavelength was found to be decaying exponentially. In optical fiber the total group velocity dispersion is divided into the material dispersion DM and waveguide dispersion DW. Material dispersion and waveguide dispersion were calculated theoretically and a good agreement with the experimental result. The process of four wave mixing and consequences was reviewed.

Group velocity dispersion measurements of 3 OAM states in 1 kilometer ring-core fiber link

2016 ◽  
Author(s):  
Haozhe Yan ◽  
Shangyuan Li ◽  
Boyu Chen ◽  
Luxin Yang ◽  
Xiaoping Zheng ◽  
...  
Keyword(s):  
Group Velocity ◽  
Velocity Dispersion ◽  
Group Velocity Dispersion ◽  
Fiber Link ◽  
Core Fiber ◽  
Ring Core

Glass Structures and Linea/Nonlinear Optical Properties of Ag2O-Doped TeO2 Glasses

2014 ◽  
Vol 617 ◽  
pp. 141-144 ◽  
Author(s):  
Yusuke Kasuya ◽  
Toshiki Suhara ◽  
Tomokatsu Hayakawa ◽  
Philippe Thomas ◽  
Masayuki Nogami
Keyword(s):  
Optical Properties ◽  
Absorption Edge ◽  
Photoelectron Spectroscopy ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Nonlinear Susceptibility ◽  
Third Order ◽  
Nonlinear Properties ◽  
Nonlinear Optical Devices ◽  
Third Order Nonlinear Susceptibility

A family of TeO2-based glasses is known to have high third-order nonlinear properties and expected as nonlinear optical devices. In the present study, we fabricated Ag2O-TeO2 and Ag2O-Nb2O5-TeO2 glasses, and estimated their structures and linear/nonlinear optical properties. The main results showed that the absorption-edge of the glasses was shifted to longer wavelength side with increasing Ag2O content. By Raman spectroscopy, it was found that an increase in Ag2O content promoted to change TeO4 to TeO3/TeO3+1 units. X-ray photoelectron spectroscopy (XPS) revealed the presence of an electronic state of Ag2+ ions, which was supposed to have a large influence on the absorption-edge wavelength. In Ag2O-Nb2O5-TeO2 glass system, the third-order nonlinear susceptibility χ(3) increased with increasing Ag2O content at the expense of Nb2O5 content.

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