Optical code generating device using 1 × N asymmetric hollow waveguide couplers

Abang Annuar Ehsan, Sahbudin Shaari, Mohd Kamil Mohd, Kee Mohd Rafique Kee Zainal Abidin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

An optical code generating device for security access system application is presented. The code generating device constructed using asymmetric hollow optical waveguide coupler design provides a unique series of output light intensities which are successively used as an optical code. The design of the waveguide is made using two major components which are asymmetric Y-junction splitter and a linear taper. Waveguiding is done using a hollow waveguide structure. Construction of higher level 1 × N hollow waveguide coupler is done utilizing a basic 1 × 2 asymmetric waveguide coupler design together with a cascaded design scheme. Non-sequential ray tracing of the asymmetric hollow optical waveguide couplers is performed to predict the optical transmission properties of the waveguide. A representation of the code combination that can be generated from the device is obtained using combinatory number theory.

Original languageEnglish
Pages (from-to)849-854
Number of pages6
JournalGuangzi Xuebao/Acta Photonica Sinica
Volume37
Issue number5
Publication statusPublished - May 2008

Fingerprint

Waveguide couplers
couplers
hollow
waveguides
Waveguides
Optical waveguides
optical waveguides
Number theory
number theory
Ray tracing
Light transmission
tapering
ray tracing
luminous intensity
output

Keywords

  • Asymmetric
  • Hollow waveguide
  • Optical code
  • Ray tracing
  • Y-splitter

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Control and Systems Engineering

Cite this

Optical code generating device using 1 × N asymmetric hollow waveguide couplers. / Ehsan, Abang Annuar; Shaari, Sahbudin; Mohd, Mohd Kamil; Kee Zainal Abidin, Kee Mohd Rafique.

In: Guangzi Xuebao/Acta Photonica Sinica, Vol. 37, No. 5, 05.2008, p. 849-854.

Research output: Contribution to journalArticle

Ehsan, AA, Shaari, S, Mohd, MK & Kee Zainal Abidin, KMR 2008, 'Optical code generating device using 1 × N asymmetric hollow waveguide couplers', Guangzi Xuebao/Acta Photonica Sinica, vol. 37, no. 5, pp. 849-854.
Ehsan, Abang Annuar ; Shaari, Sahbudin ; Mohd, Mohd Kamil ; Kee Zainal Abidin, Kee Mohd Rafique. / Optical code generating device using 1 × N asymmetric hollow waveguide couplers. In: Guangzi Xuebao/Acta Photonica Sinica. 2008 ; Vol. 37, No. 5. pp. 849-854.
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