Lightwave propagation through a 120° sharply bent single-line-defect photonic crystal waveguide

Masatoshi Tokushima, Hideo Kosaka, Akihisa Tomita, Hirohito Yamada

Research output: Contribution to journalArticlepeer-review

264 Citations (Scopus)

Abstract

We have demonstrated 1.55 μm wavelength lightwave propagation through a 120° sharply bent waveguide formed in a triangular-lattice two-dimensional photonic crystal (2D PC). Such propagation has not previously been experimentally confirmed. The photonic crystal was fabricated in a silicon-on-insulator (SOI) wafer with the top silicon layer of the wafer used as a core layer. A 877-μm-long single-line-defect waveguide was formed in the PC with a sharp 120° bend near the middle of the waveguide. A tapered-hemispherical-end fiber was coupled to the input end of the waveguide for the light input, and the output from the other end of the waveguide was directly observed by scanning its near-field profile with another tapered-hemispherical-end fiber.

Original languageEnglish
Pages (from-to)952-954
Number of pages3
JournalApplied Physics Letters
Volume76
Issue number8
DOIs
Publication statusPublished - 2000 Feb 21
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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