Low Loss, High <scp>NA</scp> Chalcogenide Glass Fibers for Broadband Mid‐Infrared Supercontinuum Generation

Zhang, Bin; Guo, Wei; Yu, Yi; Zhai, Chengcheng; Qi, Sisheng; Yang, Anping; Li, Lei; Yang, Zhiyong; Wang, Rongping; Tang, Dingyuan; Tao, Guangming; Luther‐Davies, Barry

doi:10.1111/jace.13574

Cited by 87 publications

(45 citation statements)

References 26 publications

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“…Furthermore, novel fiber-based IR sources are a potential growth area. There has been tremendous progress in IR supercontinuum generation from IR fibers [14,43,44,169,216,220,246,248,250,[468][469][470][471][472][473], but other nonlinear wavelength conversion schemes need also to be developed, such as Raman shifting and fourwave mixing. The high optical nonlinearity of IR glasses and the potential for dispersion engineering in high-index-contrast fibers may be exploited in producing IR laser combs [474][475][476].…”

Section: Future Prospectsmentioning

confidence: 99%

Infrared fibers

et al. 2015

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Infrared (IR) fibers offer a versatile approach to guiding and manipulating light in the IR spectrum, which is becoming increasingly more prominent in a variety of scientific disciplines and technological applications. Despite well-established efforts on the fabrication of IR fibers in past decades, a number of remarkable breakthroughs have recently rejuvenated the field-just as related areas in IR optical technology are reaching maturation. In this review, we describe both the history and recent developments in the design and fabrication of IR fibers, including IR glass and single-crystal fibers, multimaterial fibers, and fibers that exploit the transparency window of traditional crystalline semiconductors. This interdisciplinary review will be of interest to researchers in optics and photonics, materials science, and electrical engineering.

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Section: Future Prospectsmentioning

confidence: 99%

Infrared fibers

et al. 2015

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“…1,19,20 One may notice that there is a slight H 2 O absorption at ~6.3 μm in the transmission spectrum of the core glass (Figure 2), but the absorption is not observed in the attenuation spectrum of the fiber (Figure 4). The ultra-high losses around 2.95 μm and 4.05 μm, which are estimated from transmission spectra of bulk samples, are ascribed to the intense absorptions of OH/S-H and S-H/CO 2 impurities, 1 respectively.…”

Section: Resultsmentioning

confidence: 99%

“…19 The composition Ga 8 Sb 32 S 55 I 5 which has superior TSAC was used as the core. 19 The composition Ga 8 Sb 32 S 55 I 5 which has superior TSAC was used as the core.…”

Section: Resultsmentioning

confidence: 99%

Ga‐Sb‐S‐I chalcohalide glasses and fibers for mid‐infrared applications

et al. 2019

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In this work, environment friendly Ga‐Sb‐S‐I chalcohalide glasses and fibers are developed for mid‐infrared applications. The developed Ga8Sb32S60‐xIx (x = 0‐10) glasses have a transmission window of ~0.7‐14 µm, linear refractive indices (n0) of ~ 2.690‐2.751 at 1.55 µm, nonlinear refractive indices (n2) of ~10.5‐12.4 × 10−14 cm2/W at 1.55 µm, and zero dispersion wavelengths (λ0) of ~4.94‐5.25 µm. The developed Ga8Sb32S55I5/Ga8Sb31S56I5 (core/cladding) fiber can transmit infrared light from below 2 µm to ~8 µm, and shows the minimum loss of ~1.2 dB/m at ~6 µm. The wide transmission window, high optical nonlinearity and superior thermal stability against crystallization of the glasses, and the good 2‐8 µm transmission property of the fiber make these materials promising for mid‐infrared applications such as thermal imaging, nonlinear optics, and laser transmission.

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“…of chalcogenide glass structured optical fibers. Recently (2014-2015), extreme broadband MIR supercontinuum (SC) generation has been demonstrated in chalcogenide glass fibers [5], and Ge-As-Se glass was designed as the core [28,29] or clad [5,30]. in these fibers which were optically engineered to have high numerical aperture (NA).…”

Section: Introductionmentioning

confidence: 99%

Low loss Ge-As-Se chalcogenide glass fiber, fabricated using extruded preform, for mid-infrared photonics

Tang

Shiryaev

Furniss

et al. 2015

Opt. Mater. Express

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Chalcogenide glass fibers have attractive properties (e.g. wide transparent window, high optical non-linearity) and numerous potential applications in the mid-infrared (MIR) region. Low optical loss is desired and important in the development of these fibers. Ge-As-Se glass has a large glass-forming range to provide versatility of choice from continuously varying physical properties. Recently, broadband MIR supercontinuum generation has been achieved in chalcogenide fibers by using Ge-As-Se glass in the core/clad. structure. In the shaping of chalcogenide glass optical fiber preforms, extrusion is a useful technique. This work reports glass properties (viscosity-temperature curve and glass transition) and optical losses of Ge-As-Se fiber fabricated from an extruded preform. A robust cutback method of fiber loss measurement is developed and the corresponding error calculation discussed. MIR light is propagated through 52 meters of a fiber, which has the lowest loss yet reported for Ge-As-Se fiber of 83 ± 2 dB/km at 6.60 μm wavelength. The fiber baseline loss is 83-90 dB/km across 5.6-6.8 μm, a Se-H impurity absorption band of 1.4 dB/m at 4.5 μm wavelength is superposed and other impurity bands (e.g. O-H, As-O, Ge-O) are ≤ 20 dB/km. Optical losses of fiber fabricated from different positions of the extruded preform are investigated.

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Low Loss, High NA Chalcogenide Glass Fibers for Broadband Mid‐Infrared Supercontinuum Generation

Cited by 87 publications

References 26 publications

Infrared fibers

Infrared fibers

Ga‐Sb‐S‐I chalcohalide glasses and fibers for mid‐infrared applications

Low loss Ge-As-Se chalcogenide glass fiber, fabricated using extruded preform, for mid-infrared photonics

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