Artificially anisotropic core fiber with ultra-flat high birefringence profile

Grzegorz Stepniewski, Ireneusz Kujawa, Mariusz Klimczak, Tadeusz Martynkien, Rafal Kasztelanic, Krzysztof Borzycki, Dariusz Pysz, Andrew John Waddie, Bartlomiej Salski, Ryszard Stepien, Mohammad Reza Taghizadeh, Ryszard Buczynski

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We present a highly birefringent fiber with a core made of artificial anisotropic glass material. The fiber core is composed of interleaved subwavelength layers of two types of soft glasses ordered in a rectangular structure. A pair of thermally matched glasses, a low refractive index borosilicate glass and a high refractive index lead oxide glass, are used. The fiber has a unique flat profile of birefringence over one octave, weakly dependent on wavelength. The group birefringence and effective mode area were measured in a broadband range across the visible and the near infrared for the fundamental mode and were found to be equal 1.8 x 10(-3) and 20 mu m(2), respectively. The group birefringence is uniquely flat over the wavelength range of 0.8-1.7 mu m and the relative difference of birefringence is below 0.2 x 10(-3). The measured dispersion shows also relatively flat characteristics varying from -60 ps/(nm x km) at 1150 nm to 20 ps/(nm x km) at 1690 nm with Zero Dispersion Wavelength at 1520 nm. We demonstrated an application of the fiber for polarization maintaining broadband supercontinuum generation in the range of 1210-1830 nm when pumped with a subpicosecond fiber-based laser at 1560 nm.

Original languageEnglish
Pages (from-to)1464-1479
Number of pages16
JournalOptical Materials Express
Volume6
Issue number5
DOIs
Publication statusPublished - 1 May 2016

Keywords

  • PHOTONIC CRYSTAL FIBERS
  • POLARIZATION-MAINTAINING FIBERS
  • HYBRID MICROSTRUCTURED FIBER
  • ALL-NORMAL DISPERSION
  • SUPERCONTINUUM GENERATION
  • SQUEEZED LATTICE
  • ELLIPTIC HOLES
  • OPTICAL-FIBERS
  • SOFT-GLASS
  • AIR HOLES

Cite this

Stepniewski, G., Kujawa, I., Klimczak, M., Martynkien, T., Kasztelanic, R., Borzycki, K., Pysz, D., Waddie, A. J., Salski, B., Stepien, R., Taghizadeh, M. R., & Buczynski, R. (2016). Artificially anisotropic core fiber with ultra-flat high birefringence profile. Optical Materials Express, 6(5), 1464-1479. https://doi.org/10.1364/OME.6.001464