Ultrasmall multi-channel resonant-tunneling filter using mode gap of width-tuned photonic-crystal waveguide | Zendy

Akihiko Shinya | Zendy; Satoshi Mitsugi | Zendy; Eiichi Kuramochi | Zendy; Masaya Notomi | Zendy

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Ultrasmall multi-channel resonant-tunneling filter using mode gap of width-tuned photonic-crystal waveguide

Author(s) -

Akihiko Shinya,

Satoshi Mitsugi,

Eiichi Kuramochi,

Masaya Notomi

Publication year - 2005

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.13.004202

Subject(s) - photonic crystal , port (circuit theory) , optics , filter (signal processing) , finite difference time domain method , materials science , quantum tunnelling , guided mode resonance , interference (communication) , optoelectronics , channel (broadcasting) , electronic engineering , physics , computer science , telecommunications , electrical engineering , engineering , diffraction grating , grating

We have devised an ultra-small multi-channel drop filter based on a two-port resonant tunneling system in a two-dimensional photonic crystal with a triangular air-hole lattice. This filter does not require careful consideration of the interference process to achieve a high dropping efficiency. First we develop three-port systems based on a two-port resonant tunneling filter. Next we devise a multi-port channel drop filter by cascading these three-port systems. In this paper, we demonstrate a ten-channel drop filter with an 18 mum device size by 2D-FDTD calculation, and a three-port resonant tunneling filter with 65+/- 20 % dropping efficiency by experiment.

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