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Propagation characteristics of photonic bandgap fiber collimator with C-lens

  • Beihang University

Research output: Contribution to journalArticlepeer-review

Abstract

A photonic bandgap fiber collimator with C-lens was proposed. The photonic crystal fiber end face does not have reflection, so the transform matrix will change. From the general model of Gaussian-beam imaging, using the theory of matrix optics, the matrix optics was calculated in meridian plane and sagittal plane respectively. Combined with practical applications in photonic bandgap fiber and C-lens related parameters, the influence of the distance between fiber tail and C-lens and the influence of the parameter of the C-lens on working distance and beam waist diameter of collimator were both stimulated and analyzed. The results of the analysis in new model show that the influence of the C-lens tile for meridian plane and sagittal plane was similar, and the Gaussian-beam ellipse was smaller compared with ordinary fiber. The result may direct the design of photonic bandgap fiber collimator and the design of optical device with photonic bandgap fiber collimator.

Original languageEnglish
Pages (from-to)1517-1522
Number of pages6
JournalBeijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
Volume43
Issue number8
DOIs
StatePublished - Aug 2017

Keywords

  • Beam waist diameter
  • C-lens
  • Fiber collimator
  • Photonic bandgap fiber
  • Working distance

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