Polarization-maintaining and radiation resistant optical fiber with germanosilicate elliptical core

M. A. Eronyan, D. R. Devetyarov, A. A. Reutskiy, A. A. Untilov, S. M. Aksarin, I. K. Meshkovskiy, M. A. Bisyarin, A. A. Pechenkin

Research output: Contribution to journalArticlepeer-review


This paper aims to consider fabrication of single-mode polarization-maintaining (PM) optical fibers with elliptical core, doped with 20 mol. % GeO2 and to study their optical properties and radiation resistance. The optical fiber preform was fabricated by chemical vapor deposition method. The low-oxygen central piece of the core in the preform was removed by high-temperature chemical gas-phase etching. The single-mode optical fibers 125 µm in diameter, with 65 µm thick polymer protection coating were drawn. The results of measurements of the optical properties at a wavelength of 1.3–1.55 μm confirmed that the highly-doped GeO2 optical fiber waveguides have a low optical loss and high radiation resistance owing to gas phase etching. Polarization-maintaining factor (h-parameter) of ≈ 8∙10-6 m−1 was achieved. As to the radiation resistance, our single-mode PM optical fiber with elliptical core appears to be quite competitive to the known PANDA PM optical fibers with a core made of pure silica glass.

Original languageEnglish
Article number102789
JournalOptical Fiber Technology
Early online dateDec 2021
StatePublished - Jan 2022

Scopus subject areas

  • Control and Systems Engineering
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering


  • Anisotropy
  • Attenuation
  • Chemical vapor deposition
  • Fibers
  • Optical spectroscopy
  • Radiation-induced attenuation


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