Waveguide structure design of adiabatic optical directional couplers weighted by sin-square function

Chi Feng Chen, Yun Sheng Ku, Kuan Hsiung Chen

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

This study discusses optimization of the adiabatic optical directional coupler (AODC) based on sin-square weighting functions (SSF) for waveguide structure. The objective of the work includes the define coupler of theory ranges, low crosstalk and short coupler length, respectively. When the crosstalk is demanded to be smaller than -35 dB, the coupler length for SSF is 2 λb0 (minimum local beat length). Definitely SSF which is proposed can obtain a better result after the structural design.

Original languageEnglish
Pages (from-to)172-177
Number of pages6
JournalKey Engineering Materials
Volume364-366 I
StatePublished - 2008

Keywords

  • Adiabatic directional coupler
  • Adiabatic optical directional full coupler
  • Coupling waveguide structure
  • Optical directional coupler

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