Random laser in a fiber: combined effects of guiding and scattering lead to a reduction of the emission threshold

Charlotte Hurot, Wan Zakiah Wan Ismail, Judith Dawes*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Random fiber lasers incorporate scattering particles with optical gain in a fiber geometry and offer potential for sensing and biophotonics applications. In this work, the combined effects of waveguiding and scattering in random fiber lasers were investigated. A dye solution with nanoparticles was inffltrated into the hollow core of the microstructured optical fibers and the fibers were side pumped by a frequency-doubled Nd:YAG laser. The resulting emission threshold was reduced in comparison with the bulk solution. We used a Matlab model to gain a better understanding of the competing feedback mechanisms involved.
Original languageEnglish
Pages (from-to)97-100
Number of pages4
JournalOptical Data Processing and Storage
Volume3
Issue number1
DOIs
Publication statusPublished - 2017

Keywords

  • Random laser
  • fiber laser
  • multiple scattering

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