Fabrication of chalcogenide transversely disordered optical fiber for mid-infrared image transport

Nakatani, Asuka; Tuan, Tong Hoang; Isai, Hayato; Matsumoto, Morio; Sakai, Goichi; Suzuki, Takenobu; Ohishi, Yasutake

doi:10.1364/cleo_at.2020.jw2e.9

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…[72], they reported a refractive index contrast of Δn 0.095 and observed TAL and image transport at the NIR optical wavelength of 1.55 µm. Most recently, they reported the fabrication and analysis of chalcogenide TALOFs (As 2 Se 3 /AsS 2 and AsSe 2 /As 2 S 5 ) for mid-IR image transport [95,96]. So far, they have reported the observation of TAL in the chalcogenide TALOF and actual image transport is yet to be demonstrated in these fibers.…”

Section: Image Transport and Illumination Using Talofsmentioning

confidence: 99%

Review of a Decade of Research on Disordered Anderson Localizing Optical Fibers

Mafi

Ballato

2021

Front. Phys.

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Nearly a decade ago, transverse Anderson localization was observed for the first time in an optical fiber with a random transverse refractive index profile. This started the development of a whole new class of optical fibers that guide light, not in a conventional core-cladding setting based on total internal reflection, but utilizing Anderson localization, where light can guide at any location across the transverse profile of the fiber. These fibers have since been used successfully in high-quality endoscopic image transport. They also show interesting nonlinear and active (lasing) properties with promising applications. This review will cover a brief history of these fibers with personal accounts of the events that led to their development in our research groups. It will then follow with recent progress and future perspectives on science and applications of these fibers.

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Section: Image Transport and Illumination Using Talofsmentioning

confidence: 99%

Review of a Decade of Research on Disordered Anderson Localizing Optical Fibers

Mafi

Ballato

2021

Front. Phys.

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“…The DOF was first used for image transmission in 2014 and achieved a higher imaging quality in comparison with some of the best commercial multicore fibers [7], thus attracting extensive attention. In past decades, four kinds of DOFs composed of different materials have been investigated-polymer DOF [10], glass-air DOF [11], Tellurite DOF [12][13][14] and chalcogenide DOF [15,16]-in order to cover the different transmission windows including visible light [4,17], near-infrared [12,18], and mid-infrared light [16], respectively. However, the transmission distances of all those fibers are only several centimeters [19], which is a major disadvantage that hinders their practical application.…”

Section: Introductionmentioning

confidence: 99%

Transverse Anderson Localization Enhancement for Low-Filling-Rate Glass–Air Disordered Fibers by Optimizing the Diameter of Air Holes

Zhao

et al. 2022

Photonics

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We demonstrate a method to enhance the transverse Anderson localization (TAL) effect of the glass–air disordered optical fiber (G-DOF) by adjusting the number and diameter of air holes. This method does not need to enlarge the air-filling fraction of G-DOF, leading to the mitigation of fabrication complexity. By choosing the appropriate diameter and number of air holes, the average localized beam radius of G-DOF with the highest air-filling fraction of 30% can be successfully reduced by 18%. Moreover, the proposed method is always functional for the situations of the air-filling fraction lower than 50%. We also identify that, under the same air-filling fraction, a larger number of air holes in the G-DOF leads to the smaller standard deviation of the corresponding localized beam radius, indicating a stable fiber structure. The results will provide new guidance on the G-DOF design.

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Optimum Design of Glass–Air Disordered Optical Fiber with Two Different Element Sizes

Zhao

Luo

et al. 2023

Photonics

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This paper presents a detailed study investigating the effect of the material refractive index distribution at the local position of a glass–air disordered optical fiber (G-DOF) on its localized beam radius. It was found that the larger the proportion of the glass material, the smaller its localized beam radius, which means that the transverse Anderson localization (TAL) effect would be stronger. Accordingly, we propose a novel G-DOF with large-size glass elements doped in the fiber cross-section. The simulation results show that the doped large-size glass elements can reduce the localized beam radius in the doped region and has a very tiny effect on the undoped region, thus contributing to reducing the average localized beam radius of G-DOF.

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Fabrication of chalcogenide transversely disordered optical fiber for mid-infrared image transport

Abstract: We successfully fabricated a transversely disordered optical fiber made of chalcogenide glasses (AsSe2 and As2Ss) for high-resolution mid-infrared image transport. Moreover, we evaluated local confinement on the fiber using finite element method.

Cited by 3 publications

References 4 publications

Review of a Decade of Research on Disordered Anderson Localizing Optical Fibers

Review of a Decade of Research on Disordered Anderson Localizing Optical Fibers

Transverse Anderson Localization Enhancement for Low-Filling-Rate Glass–Air Disordered Fibers by Optimizing the Diameter of Air Holes

Optimum Design of Glass–Air Disordered Optical Fiber with Two Different Element Sizes

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