A good performance 3-dB splitter based on coupling-weighted and velocity-tapered waveguides

Hseng Tsong Wang, Chi Feng Chen, Sien Chi

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A coupling-weighted and velocity-tapered 3-dB splitter with a symmetric triple-mode evolution structure weighted by the Blackman function is analytically and numerically investigated for C+L-band passive optical network applications. The splitter is analyzed by the coupled-mode theory and simulated by the use of three-dimensional finite-difference beam propagation method. It is found that the power uniformity, wavelength dependent loss, excess loss and polarization dependent loss of the proposed 3-dB splitter in the whole C+L-band are better than 2.49×10-3 dB, 0.018 dB, 0.14 dB, and 0.004 dB, respectively. It is evident that the 3-dB splitter can achieve the good performances for C+L-band passive optical network applications.

Original languageEnglish
Pages (from-to)97-102
Number of pages6
JournalOptics Communications
Volume350
DOIs
StatePublished - 1 Sep 2015

Keywords

  • Blackman function
  • Coupler
  • Coupling
  • Splitter
  • Super-mode propagation
  • Tapered
  • Triple-mode evolution
  • Waveguide
  • Weighted

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