Optical amplification in hollow-core negative-curvature fibers doped with perovskite CsPbBr3 nanocrystals

Research output: Contribution to journalArticleScientificpeer-review


  • Juan Navarro-Arenas
  • Isaac Suárez
  • Juan P. Martínez-Pastor
  • Albert Ferrando
  • Andrés F. Gualdrón-Reyes
  • Iván Mora-Seró
  • Shou Fei Gao
  • Ying Ying Wang
  • Pu Wang
  • Zhipei Sun

Research units

  • University of Valencia
  • Universidad Rey Juan Carlos
  • Jaume I University
  • University of Pamplona
  • Beijing University of Technology


We report a hollow-core negative-curvature fiber (HC-NCF) optical signal amplifier fabricated by the filling of the air microchannels of the fiber with all-inorganic CsPbBr3 perovskite nanocrystals (PNCs). The optimum fabrication conditions were found to enhance the optical gain, up to +3 dB in the best device. Experimental results were approximately reproduced by a gain assisted mechanism based on the nonlinear optical properties of the PNCs, indicating that signal regeneration can be achieved under low pump powers, much below the threshold of stimulated emission. The results can pave the road of new functionalities of the HC-NCF with PNCs, such as optical amplification, nonlinear frequency conversion and gas sensors.


Original languageEnglish
Article number868
Number of pages12
Issue number6
Publication statusPublished - 1 Jun 2019
MoE publication typeA1 Journal article-refereed

    Research areas

  • Hollow core fibers, Nonlinear optical properties, Perovskite nanocrystals, Signal regeneration/amplification

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