Initiatory concept of localized &lt;inline-formula&gt;&lt;math display="inline" overflow="scroll"&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;CO&lt;/mi&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mn mathvariant="bold"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/inline-formula&gt; laser-based tapering rig for realization of in-fiber devices

Aharoni, Ran; Bidani, Liron; Sinvani, M.; Zalevsky, Zeev

doi:10.1117/1.oe.51.7.075002

Cited by 4 publications

(1 citation statement)

References 14 publications

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“…Additionally, the continuous purging and maintenance required for induction furnaces do not apply to laser-based furnaces as there is no risk of the heating element degrading and contaminating the fibre during a draw. Laser-based heating has been used in fibre fabrication [2][3][4] and, perhaps more commonly, in fibre post-processing in the form of tapering [5], twisting [6] or annealing [7] as some exam-31 ples. These works have all focused around using a CO 2 laser 32 operating at a wavelength of λ = 10.6 µm as a heat source.…”

Section: Introductionmentioning

confidence: 99%

Supplementary document for Specialty optical fibre fabrication: Preform manufacturing based on asymmetrical CO Laser heating - 5496007.pdf

Oriekhov,

Harvey,

Mühlberger

et al. 2021

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An experimental, laboratory-scale optical fibre drawing tower based on CO laser heating has been developed and used to fabricate speciality optical fibre. The CO laser was utilised in a symmetric four beam heating system. The localised and responsive heating time of the laser-based furnace was beneficial for manufacturing crystalline core fibres, specifically, silicon core optical fibres. Moreover, the specific absorption properties of the CO laser radiation in silica have been evaluated with the aid of finite element modelling. In comparison to the more traditional CO 2 laser, CO lasers were found to improve temperature uniformity and heating times while minimising surface evaporation.

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Section: Introductionmentioning

confidence: 99%

Supplementary document for Specialty optical fibre fabrication: Preform manufacturing based on asymmetrical CO Laser heating - 5496007.pdf

Oriekhov,

Harvey,

Mühlberger

et al. 2021

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A carbon monoxide laser-based specialty optical fiber preform fabrication system

Oriekhov

Harvey

Fokine

2022

Review of Scientific Instruments

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We report the development of a specialty optical fiber preform fabrication system based on carbon monoxide (CO) laser heating. The laser heating is accomplished via a single-beam optical arrangement integrated into a rotating glass lathe. The CO laser output power and its beam quality are affected by absorption of the laser radiation by water vapor present in the surrounding air. This is addressed by construction of an enclosed and fully motorized system to enable preform processing in a dry air environment. The performance of the system is evaluated, and the ability to maintain a desired preform processing temperature is demonstrated. Relevant aspects of preform manufacturing, such as glass cutting, splicing, tapering, and overcladding, are described in detail. The process of using these aspects to fabricate optical fiber preforms made of highly dissimilar materials and of various core-to-cladding ratios is discussed. Specialty fibers drawn from these preforms exhibit low-loss and show good optical performance.

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Monitoring techniques for the manufacture of tapered optical fibers

et al. 2015

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The use of a range of optical techniques to monitor the process of fabricating optical fiber tapers is investigated. Thermal imaging was used to optimize the alignment of the optical system; the transmission spectrum of the fiber was monitored to confirm that the tapers had the required optical properties and the strain induced in the fiber during tapering was monitored using in-line optical fiber Bragg gratings. Tapers were fabricated with diameters down to 5 μm and with waist lengths of 20 mm using single-mode SMF-28 fiber.

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Initiatory concept of localized <inline-formula><math display="inline" overflow="scroll"><mrow><msub><mrow><mi>CO</mi></mrow><mrow><mn mathvariant="bold">2</mn></mrow></msub></mrow></math></inline-formula> laser-based tapering rig for realization of in-fiber devices

Cited by 4 publications

References 14 publications

Supplementary document for Specialty optical fibre fabrication: Preform manufacturing based on asymmetrical CO Laser heating - 5496007.pdf

Supplementary document for Specialty optical fibre fabrication: Preform manufacturing based on asymmetrical CO Laser heating - 5496007.pdf

A carbon monoxide laser-based specialty optical fiber preform fabrication system

Monitoring techniques for the manufacture of tapered optical fibers

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