BREAKTHROUGH LASER TECHNOLOGIES FOR SMART MANUFACTURING, SPACE AND BIO-TECH APPLICATIONS (LasApp)
Published March 27, 2024 | Version v1
Journal article Open

Heat treatment and fiber drawing effect on the matrix structure and fluorescence lifetime of Er- and Tm-doped silica optical fibers

Authors/Creators

  • 1. ROR icon Czech Academy of Sciences, Institute of Photonics and Electronics
  • 2. ROR icon University of Chemistry and Technology
  • 3. Institute of Microelectronics and Photonics
  • 4. Institute of Photonics and Electronics

Description

We investigate the influence of the optical fiber fabrication process on the fluorescence lifetime of Er3+ and Tm3+ ions. Optical fiber preforms were prepared using the MCVD method combined with Al2O3 nanoparticle doping. The preforms were subjected to various fabrication processes, such as preform elongation, fiber drawing, and heat treatment. The matrix structure of the preforms and fibers was studied by XRD and TEM. The fluorescence lifetime was measured. The fabrication processes caused the dissolution of the doped Al2O3 nanoparticles and a significant decrease of fluorescence lifetime of Tm3+ ions, from 875 µs in the preform down to 610 µs in the fiber, whereas no significant effect was observed for Er3+ ions, with fluorescence lifetime in the 9.6–10.2 ms range.

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Additional details

Related works

Is documented by
Dataset: 10.5281/zenodo.10579995 (DOI)

Funding

Czech Science Foundation
Novel nanostructured optical fibers for fiber lasers operating at dual wavelengths 21-45431L
National Science Centre
Novel nanostructured optical fibers for fiber lasers operating at dual wavelengths OPUS LAP 020/39/I/ST7/02143
European Union
Průlomové laserové technologie pro chytrou výrobu, vesmírné a biotechnologické aplikace (LasApp) CZ.02.01.01/00/22_008/0004573

Dates

Accepted
2024-03-18
Submitted
2024-01-29