Presentation 2009-06-19
Polarization-independent and Low-Crosstalk Operation of InAlGaAs/InAlAs Mach-Zehnder Interferometer-Type Photonic Switch with Hybrid-waveguide Structure
Yuta UEDA, Shinji FUJIMOTO, Hiroto YAMADA, Shinya NAKAMURA, Katsuyuki UTAKA, Takashi SHIOTA, Takeshi KITATANI,
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Abstract(in English) We demonstrated a Mach-Zehnder (MZ) interferometer-type photonic switch using multi-mode interference (MMI) couplers with InAlGaAs/InAlAs compound semiconductor materials. Hybrid-waveguide structure with different etching depths was adopted for MMI couplers and other parts of the waveguides for polarization-independent operation. As a result, low-crosstalk switching operation of less than -20dB was confirmed regardless of polarizations of an input light. Switching currents were 5.25 and 4.75mA for TE and TM modes of the input light, respectively. High-speed switching operation with about 3 nano-second transition times was also confirmed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) InAlGaAs/InAlAs compound semiconductor / Mach-Zehnder (MZ) interferometer photonic switch / Multi-mode interference (MMI) coupler / Polarization-independence
Paper # OPE2009-18,LQE2009-21
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Conference Information
Committee LQE
Conference Date 2009/6/12(1days)
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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) Polarization-independent and Low-Crosstalk Operation of InAlGaAs/InAlAs Mach-Zehnder Interferometer-Type Photonic Switch with Hybrid-waveguide Structure
Sub Title (in English)
Keyword(1) InAlGaAs/InAlAs compound semiconductor
Keyword(2) Mach-Zehnder (MZ) interferometer photonic switch
Keyword(3) Multi-mode interference (MMI) coupler
Keyword(4) Polarization-independence
1st Author's Name Yuta UEDA
1st Author's Affiliation Faculty of Science and Engineering, Waseda University()
2nd Author's Name Shinji FUJIMOTO
2nd Author's Affiliation Faculty of Science and Engineering, Waseda University
3rd Author's Name Hiroto YAMADA
3rd Author's Affiliation Faculty of Science and Engineering, Waseda University
4th Author's Name Shinya NAKAMURA
4th Author's Affiliation Faculty of Science and Engineering, Waseda University
5th Author's Name Katsuyuki UTAKA
5th Author's Affiliation Faculty of Science and Engineering, Waseda University
6th Author's Name Takashi SHIOTA
6th Author's Affiliation Central Research Laboratory, Hitachi, Ltd.
7th Author's Name Takeshi KITATANI
7th Author's Affiliation Central Research Laboratory, Hitachi, Ltd.
Date 2009-06-19
Paper # OPE2009-18,LQE2009-21
Volume (vol) vol.109
Number (no) 93
Page pp.pp.-
#Pages 5
Date of Issue