Integration and Evaluation of Multichannel Photonic Crystal Wavelength Filters Consisting of Autocloned Ta2O5/SiO2 Multilayer Thin Films

Hiroyuki Ohkubo, Yasuo Ohtera, Shojiro Kawakami, Takafumi Chiba, Hiroaki Okano

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We report on the fabrication of multichannel photonic crystal (PC) wavelength filters and their evaluation at wavelength division multiplexing (WDM) wavelengths. The devices utilize three- dimensional (3D) PCs consisting of Ta2O5/SiO2 multilayer thin films fabricated by the autocloning method. The 3D PCs serve as Bragg mirrors in the devices and finite-difference time-domain (FDTD) simulations of these mirrors revealed that their Bragg wavelength shifted by +19.8 nm as the in-plane lattice constant of the crystal increased from 400 nm to 800 nm. We fabricated these filters with a Ta2O5 cavity and obtained a wavelength shift of +24.0 nm.

Original languageEnglish
Pages (from-to)L1219-L1221
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume42
Issue number10 A
DOIs
Publication statusPublished - 2003 Oct 1

Keywords

  • Autocloning
  • Bragg mirror
  • Multichannel
  • Photonic crystal
  • TaO cavity
  • TaO/SiO
  • WDM
  • Wavelength filter

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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