Tunable optical notch filter realized by shifting the photonic bandgap in a silicon photonic crystal line-defect waveguide

Tao Chu; Hirohito Yamada; Akiko Gomyo; Jun Ushida; Satomi Ishida; Yasuhiko Arakawa

doi:10.1109/LPT.2006.887366

Tunable optical notch filter realized by shifting the photonic bandgap in a silicon photonic crystal line-defect waveguide

Tao Chu, Hirohito Yamada, Akiko Gomyo, Jun Ushida, Satomi Ishida, Yasuhiko Arakawa

ENG - Communications Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

A tunable optical notch filter was realized by thermally shifting the TM-like (the light's electric field perpendicular to the substrate) bandgap of a silicon photonic crystal slab W1 line-defect waveguide with silica cladding. This device is compact-its footprint is 340 ×16 μm², excluding the electrode pads. The 3-dB bandwidth of the device was about 5 nm, and the extinction ratio at the center wavelength was as high as 40 dB. A maximum center wavelength shift of 17.9 nm was attained at a heating power of 0.7 W, with a tuning efficiency of 25.5 nm/W. The tuning response time was less than 100 μs.

Original language	English
Pages (from-to)	2614-2616
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	18
Issue number	24
DOIs	https://doi.org/10.1109/LPT.2006.887366
Publication status	Published - 2006 Dec 15

Keywords

Integrated optics
Optical filters
Optical waveguides
Photonic crystals (PhCs)
Thermooptic effects
Tunable filters

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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title = "Tunable optical notch filter realized by shifting the photonic bandgap in a silicon photonic crystal line-defect waveguide",

abstract = "A tunable optical notch filter was realized by thermally shifting the TM-like (the light's electric field perpendicular to the substrate) bandgap of a silicon photonic crystal slab W1 line-defect waveguide with silica cladding. This device is compact-its footprint is 340 ×16 μm2, excluding the electrode pads. The 3-dB bandwidth of the device was about 5 nm, and the extinction ratio at the center wavelength was as high as 40 dB. A maximum center wavelength shift of 17.9 nm was attained at a heating power of 0.7 W, with a tuning efficiency of 25.5 nm/W. The tuning response time was less than 100 μs.",

keywords = "Integrated optics, Optical filters, Optical waveguides, Photonic crystals (PhCs), Thermooptic effects, Tunable filters",

author = "Tao Chu and Hirohito Yamada and Akiko Gomyo and Jun Ushida and Satomi Ishida and Yasuhiko Arakawa",

note = "Funding Information: Manuscript received July 5, 2006; revised September 21, 2006. This work was carried out as part of the “Photonic Network Project” under contract to the New Energy and Industrial Technology Development Organization (NEDO) and the “Focused Research and Development Project for the Realization of the World{\textquoteright}s Most Advanced IT Nation,” IT Program, MEXT.",

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T1 - Tunable optical notch filter realized by shifting the photonic bandgap in a silicon photonic crystal line-defect waveguide

AU - Chu, Tao

AU - Yamada, Hirohito

AU - Gomyo, Akiko

AU - Ushida, Jun

AU - Ishida, Satomi

AU - Arakawa, Yasuhiko

N1 - Funding Information: Manuscript received July 5, 2006; revised September 21, 2006. This work was carried out as part of the “Photonic Network Project” under contract to the New Energy and Industrial Technology Development Organization (NEDO) and the “Focused Research and Development Project for the Realization of the World’s Most Advanced IT Nation,” IT Program, MEXT.

PY - 2006/12/15

Y1 - 2006/12/15

N2 - A tunable optical notch filter was realized by thermally shifting the TM-like (the light's electric field perpendicular to the substrate) bandgap of a silicon photonic crystal slab W1 line-defect waveguide with silica cladding. This device is compact-its footprint is 340 ×16 μm2, excluding the electrode pads. The 3-dB bandwidth of the device was about 5 nm, and the extinction ratio at the center wavelength was as high as 40 dB. A maximum center wavelength shift of 17.9 nm was attained at a heating power of 0.7 W, with a tuning efficiency of 25.5 nm/W. The tuning response time was less than 100 μs.

AB - A tunable optical notch filter was realized by thermally shifting the TM-like (the light's electric field perpendicular to the substrate) bandgap of a silicon photonic crystal slab W1 line-defect waveguide with silica cladding. This device is compact-its footprint is 340 ×16 μm2, excluding the electrode pads. The 3-dB bandwidth of the device was about 5 nm, and the extinction ratio at the center wavelength was as high as 40 dB. A maximum center wavelength shift of 17.9 nm was attained at a heating power of 0.7 W, with a tuning efficiency of 25.5 nm/W. The tuning response time was less than 100 μs.

KW - Integrated optics

KW - Optical filters

KW - Optical waveguides

KW - Photonic crystals (PhCs)

KW - Thermooptic effects

KW - Tunable filters

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DO - 10.1109/LPT.2006.887366

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

SN - 1041-1135

IS - 24

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Tunable optical notch filter realized by shifting the photonic bandgap in a silicon photonic crystal line-defect waveguide

Abstract

Keywords

ASJC Scopus subject areas

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