Presentation 2009-05-22
Electro-Optical Effect of Asymmetric Triple Coupled Quantum Well
Kenji EMA, Wataru ENDO, Taro ARAKAWA, Kunio TADA,
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Abstract(in English) An asymmetric triply coupled quantum well (ATCQW) was proposed and its electrorefractive effect was discussed. The ATCQW has a structure similar to a five-layer asymmetric coupled quantum well (FACQW), but is expected to exhibit larger electrorefractive index change than the FACQW does. The electrorefractive effects in GaAs/AlGaAs ATCQW for 0.9μm and InGaAs/InAlAs ATCQW for 1.55μm were analyzed and it was found that several times larger electrorefractive index change can be obtained in the ATCQWs than that in the FACQW. The GaAs/AlGaAs ATCQW was grown by molecular beam epitaxy (MBE) and was characterized by photo-absorption current measurement. Its result was consistent with the calculated. The ATCQW is a promising structure for high-speed and low voltage modulators and switches.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Quantum Well / GaAs / InGaAs / Asymmetric Triple coupled Quantum Well / Optical Modulator / Optical Switch / Electrorefractive Effect
Paper # LQE2009-6
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Conference Information
Committee LQE
Conference Date 2009/5/15(1days)
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Paper Information
Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Electro-Optical Effect of Asymmetric Triple Coupled Quantum Well
Sub Title (in English)
Keyword(1) Quantum Well
Keyword(2) GaAs
Keyword(3) InGaAs
Keyword(4) Asymmetric Triple coupled Quantum Well
Keyword(5) Optical Modulator
Keyword(6) Optical Switch
Keyword(7) Electrorefractive Effect
1st Author's Name Kenji EMA
1st Author's Affiliation Graduate School of Eng., Yokohama National Univ.()
2nd Author's Name Wataru ENDO
2nd Author's Affiliation Graduate School of Eng., Yokohama National Univ.
3rd Author's Name Taro ARAKAWA
3rd Author's Affiliation Graduate School of Eng., Yokohama National Univ.
4th Author's Name Kunio TADA
4th Author's Affiliation Graduate School of Eng., Kanazawa Institute of Technology
Date 2009-05-22
Paper # LQE2009-6
Volume (vol) vol.109
Number (no) 49
Page pp.pp.-
#Pages 6
Date of Issue