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Glass Structure and Structured Glass

Research activities deal with laser processing of glass. Our application oriented activities cover Optical Fiber Sensing, Specialty fiber fabrication, and glass Additive Manufacturing. Key infrastructure we developed include an interferometric setup for manufacturing fiber Bragg gratings (using a 213 nm UV-laser), a laser based draw tower (using a 5.5 µm CO-laser), and systems for laser processing and glass additive manufacturing (using 10.6 µm CO2-lasers).

Highlighted publications

  1. C. Liu, T. Oriekhov, C. Lee, C.M. Harvey, M. Fokine, “Rapid Fabrication of Silica Microlens Arrays via Glass 3D Printing", 3D Printing and Additive Manufacturing Published online October 21 (2022). http://doi.org/10.1089/3dp.2022.0112
  2. C. Liu, T. Oriekhov, M. Fokine, “Investigation of glass bonding and layer deposition during filament-based glass 3D printing,” Frontiers in Materials (Innovators in Ceramics and Glass), 9, p.978861. (2022).
  3. K. Mühlberger, C. M. Harvey, and M. Fokine, "Temperature dynamics in silicon core fibers during CO2 laser processing," Opt. Express 30, 92-100 (2022).
  4. C.M. Harvey, K. Mühlberger, T. Oriekhov, P. Maniewski, M. Fokine, “Specialty optical fibre fabrication: fibre draw tower based on a CO laser furnace,” J. Opt. Soc. Am. B 38, F122-F129 (2021).
  5. C.M. Harvey, K. Mühlberger and M. Fokine, "Mach-Zehnder interferometer for in-situ non-contact temperature monitoring during thermal processing of an optical fibre," in Journal of Lightwave Technology, 39 (22) 7223-7230 (2021), doi: 10.1109/JLT.2021.3109462.
  6. K. Mühlberger, C.M. Harvey, M. Fokine, “In-situ non-contact high-temperature measurement of an optical fiber up to the glass softening point,” Opt. Express, 29(5), 7825-7832 (2021).
  7. M. Fokine, A. Theodosiou, S. Song, T. Hawkins, J. Ballato, K. Kalli, & U. J. Gibson, “Laser structuring, stress modification and Bragg grating inscription in silicon-core glass fibers,” Optical Materials Express, 7(5), 1589-1597 (2017).
  8. D. A. Coucheron, M. Fokine, N. Patil, D. W. Breiby, O. T. Buset, N. Healy, A. C. Peacock, T. Hawkins, M. Jones, J. Ballato, and U. J. Gibson, “Laser recrystallization and inscription of compositional microstructures in crystalline SiGe-core fibres,” Nature Communications, 7(1), 13265 (2016).
  9. N. Healy, M. Fokine, Y. Franz, T. Hawkins, M. Jones, J. Ballato, A. C. Peacock, U. J. Gibson, “CO2 Laser-Induced Directional Recrystallization to Produce Single Crystal Silicon‐Core Optical Fibers with Low Loss,” Advanced Optical Materials, 4(7), 1004-1008 (2016).
  10. P. Holmberg, F. Laurell, and M. Fokine, “Influence of pre-annealing on the thermal regeneration of fiber Bragg gratings in standard optical fibers,” Opt. Expr., 23(21), 27520-27535 (2015).