Laser-assisted rapid prototyping of silica optical fibers functionalized with nanodiamonds and multiple active rare earth dopants - Publication - Bridge of Knowledge

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Laser-assisted rapid prototyping of silica optical fibers functionalized with nanodiamonds and multiple active rare earth dopants

Abstract

We present a rapid prototyping method for functionalized silica optical fibers, leveraging laser-assisted preform manufacturing combined with powder-in-tube and sol-gel dip-coating techniques. Laser vitrification enables precise thermal control through an ultra-thin heat blade characterized by localized heating and steep temperature gradients, facilitating high-quality glass formation and the integration of heat-sensitive dopants. We demonstrate three key outcomes: (i) fabrication of Ytterbium-doped active fibers with performance comparable to commercial benchmarks, (ii) development of fibers with fluorescence bandwidths exceeding one octave, doped with multiple rare-earth ions, promising for wide-band telecommunications and ultrashort pulse amplification, and (iii) the first direct doping of silica fibers with nitrogen-vacancy fluorescent nanodiamonds, enabling single-photon quantum emitter integration with the backbone of current information technology networks. Additionally, nanodiamond doping is proposed as a pathway to control the nonlinear refractive index of silica fibers. These findings establish laser-assisted preform fabrication as a versatile and efficient technique for creating advanced optical fibers with innovative functionalities.

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DOI:
Digital Object Identifier (open in new tab) 10.1364/OME.546496
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Copyright (2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement)

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Category:
Articles
Type:
artykuły w czasopismach
Published in:
Optical Materials Express no. 15, pages 949 - 966,
ISSN: 2159-3930
Language:
English
Publication year:
2025
Bibliographic description:
Hänzi P., Pysz D., Mrózek M., Bogdanowicz R., Buczyński R., Klimczak M., Feurer T., Romano V., Heidt A.: Laser-assisted rapid prototyping of silica optical fibers functionalized with nanodiamonds and multiple active rare earth dopants// Optical Materials Express -Vol. 15,iss. 5 (2025), s.949-
DOI:
Digital Object Identifier (open in new tab) 10.1364/ome.546496
Sources of funding:
  • Płatne przez stronę szwajcarską
Verified by:
Gdańsk University of Technology

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