Simultaneously achieving a large negative dispersion and a high birefringence over Er and Tm dual gain bands in a square lattice photonic crystal fiber

Yong Soo Lee, Chung Ghiu Lee, Faouzi Bahloul, Soeun Kim, Kyunghwan Oh

Research output: Contribution to journalConference article


We proposed a novel photonic crystal fiber composed of a double-cladding square lattice that could be used in dualband, Er and Tm optical gain bands, simultaneously supporting a large negative dispersion and a high birefringence. We theoretically investigated the light guiding property through the proposed PCF by using a vectorial finite element method (FEM) with a perfectly matched layer (PML). By optimizing the structural parameters, we obtained an ultra-large negative dispersion of -20,186ps/(nm km) and a very high birefringence of 9.27 ×10-3 at the wavelength of 1.55μm in the Er gain band and a very large negative dispersion of -8,067ps/(nm km) and a high birefringence of 1.0 ×10-3 at the wavelength of 1.87μm in the Tm band.

Original languageEnglish
Article numberOMC-P-23
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2019 Jan 1
EventOptical Manipulation and Structured Materials Conference 2019 - Yokohama, Japan
Duration: 2019 Apr 222019 Apr 26


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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