Ultra-high birefringent, highly nonlinear Ge20Sb15Se65 chalcogenide glass photonic crystal fiber with zero dispersion wavelength for mid-infrared applications

Hossain, Md. Shakhawath; Salimullah, Shah Md.; Faisal, Mohammad

doi:10.1016/j.ijleo.2020.165753

Cited by 25 publications

(9 citation statements)

References 54 publications

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“…Furthermore, it has a high melting temperature and low thermal expansion coefficient, which allows higher third order nonlinearity and superior stability. Hossain et al [21] designed Ge 20 Sb 15 Se 65 PCF based on a square lattice, with birefringence of 10 −1 , nonlinear coefficient on the x-and y-axes of 10 3 W −1 km −1 , and confinement loss of 10 −1 dB/km. Hui et al [22] studied a dual-rhombic air hole PCF, which reached a birefringence of the order of 10 −2 in the mid-IR region, nonlinearity of 4375 W −1 km −1 , and significantly low confinement loss of 10 −4 dB/km.…”

Section: Introductionmentioning

confidence: 99%

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Ultra-high birefringence mid-infrared Ge₂₀Sb₁₅Se₆₅ chalcogenide glass photonic crystal fiber with low confinement loss

Wang

2023

Phys. Scr.

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This study introduces a Ge20Sb15Se65 chalcogenide-glass-based photonic crystal fiber (PCF) with high birefringence and nonlinearity and ultra-low confinement loss, in which two elliptical air holes are added in the core. The propagation properties of the proposed PCF are investigated in mid-infrared range (3.0–5.0 μm) using the finite element method (FEM). Simulation results indicate that optimizing structural parameters can increase the birefringence and nonlinear coefficient to a maximum of 3.16×10−1 and 5937 W-1km-1 (in y-polarization mode), respectively, a significantly low confinement loss reach 10-14 dB/m at 3.0μm wavelength, there can obtain one zero dispersion wavelength in the study band, and the designed structure can be fabricated using available technology. The designed PCF will have promising application in mid-infrared fiber fields, optical communication, super-continuum generation, precision, and nonlinear optics.

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Section: Introductionmentioning

confidence: 99%

“…where λ is the operating wavelength in μm, n 2 is the nonlinear refractive index of the Ge 20 Sb 15 Se 65 chalcogenide glass, the value used in this study is Im eff is the imaginary value of effective refractive index.The dispersion is obtained through[21] …”

mentioning

confidence: 99%

Ultra-high birefringence mid-infrared Ge₂₀Sb₁₅Se₆₅ chalcogenide glass photonic crystal fiber with low confinement loss

Wang

2023

Phys. Scr.

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“…Instead of adjusting the length and width of the fiber core by increasing or decreasing the number of air holes, the structure designed by the arrangement and combination of air holes, which restricts the energy in the center and forms an elliptical mode field, belongs to the elliptical fiber core [9,[11][12][13][14][15][16][17][18][19][20]. Elliptical fiber cores are generally composed of all-circular air hole arrangements [15], all-elliptical air hole arrangements [17], or a combination of circular and elliptical air holes [18] to limit energy in the fiber core.…”

Section: Introductionmentioning

confidence: 99%

A Highly Birefringent Photonic Crystal Fiber with Three Rows of Circular Air Holes

et al. 2023

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An exceptionally high-performance, high-birefringent photonic crystal fiber (PCF) is meticulously designed. The core design features a unique arrangement in which the central row of circular air holes is substituted by three rows of smaller circular holes. Subsequently, the middle row is adjusted to achieve various rectangular mode field configurations. With the optimized structure parameters, the birefringence of the PCF can reach 3.57 × 10−2 at a wavelength of 1.55 μm. The confinement loss is as low as 8.4 × 10−6 dB/m. The nonlinear coefficient is up to 41 W−1·km−1. The dispersion is relatively flat within the range from 1.3 μm to 1.9 μm. These remarkable characteristics render the proposed PCF a strong candidate for applications in polarization preservation, dispersion compensation, wideband supercontinuum generation, and other related fields.

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“…Controlling light intensity, phase, and polarization through anisotropic, high-index, or plasmonic materials has led to the advancement of many applications such as polarizers, , wave plates, , photovoltaics, , and sensors . Conventional plasmonic materials are mainly metals such as silver and gold, which suffer from high losses. , On the other hand, mid- and far-IR birefringent materials include cadmium selenide, sulfide, and lithium thiogallate that possess very small birefringence, , As 38 Se 62 microstructured optical fibers that contain toxic arsenic, Ge 20 Sb 15 Se 65 photonic crystal fibers that have birefringence in the range of 0.1–0.3, , and liquid crystals . Moreover, MoS 2 , WS 2 , and other transition-metal dichalcogenides possess high index and high birefringence in the UV–vis region .…”

Section: Introductionmentioning

confidence: 99%

Tailoring the Optical Properties of Zinc Oxide via Bismuth Doping and Codoping Strategies: From Birefringence to Metallicity

2022

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Density functional theory was employed to explore the effect of Bi as a high-index dopant on the optical properties of titanium dioxide (TiO 2 ), zirconium dioxide (ZrO 2 ), and zinc oxide (ZnO). It was found that Bi Metal substitutional doping results in a reduction of the band gap energy (E g ) by creating new defect states in all investigated oxides. In the case of ZnO, the in-plane refractive index (n x,y ) is doubled (>3) over a wide band in mid-and far-IR regions, and the largest birefringence is observed compared to other materials reported in the literature. The presence of oxygen vacancies (O v ) was found to lower the optical losses, as evident by the decreased absorption cross section of a 250 nm radius sphere as revealed via the FDTD simulation. At 12% Bi doping, metallicity is obtained with optical losses lower than silver, gold, and transitionmetal nitrides. Codoping with Bi and interstitial hydrogen (H i ) or substitutional aluminum (Al Zn ) showed the same effect, which increases both the in-plane and out-of-plane indices even higher but at the expense of increasing the optical losses.

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Ultra-high birefringent, highly nonlinear Ge20Sb15Se65 chalcogenide glass photonic crystal fiber with zero dispersion wavelength for mid-infrared applications

Cited by 25 publications

References 54 publications

Ultra-high birefringence mid-infrared Ge₂₀Sb₁₅Se₆₅ chalcogenide glass photonic crystal fiber with low confinement loss

Ultra-high birefringence mid-infrared Ge₂₀Sb₁₅Se₆₅ chalcogenide glass photonic crystal fiber with low confinement loss

A Highly Birefringent Photonic Crystal Fiber with Three Rows of Circular Air Holes

Tailoring the Optical Properties of Zinc Oxide via Bismuth Doping and Codoping Strategies: From Birefringence to Metallicity

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Ultra-high birefringent, highly nonlinear Ge20Sb15Se65 chalcogenide glass photonic crystal fiber with zero dispersion wavelength for mid-infrared applications

Cited by 25 publications

References 54 publications

Ultra-high birefringence mid-infrared Ge20Sb15Se65 chalcogenide glass photonic crystal fiber with low confinement loss

Ultra-high birefringence mid-infrared Ge20Sb15Se65 chalcogenide glass photonic crystal fiber with low confinement loss

A Highly Birefringent Photonic Crystal Fiber with Three Rows of Circular Air Holes

Tailoring the Optical Properties of Zinc Oxide via Bismuth Doping and Codoping Strategies: From Birefringence to Metallicity

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Product

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About

Ultra-high birefringence mid-infrared Ge₂₀Sb₁₅Se₆₅ chalcogenide glass photonic crystal fiber with low confinement loss

Ultra-high birefringence mid-infrared Ge₂₀Sb₁₅Se₆₅ chalcogenide glass photonic crystal fiber with low confinement loss