4 ×4 InAlGaAs/InAlAs optical-switch fabric by cascading mach-zehnder interferometer-type optical switches with low-power and low-polarization- dependent operation

Yuta Ueda; Noriaki Koyama; Kazuki Kambayashi; Shinji Fujimoto; Katsuyuki Utaka; Takashi Shiota; Takeshi Kitatani

doi:10.1109/LPT.2012.2186959

4 ×4 InAlGaAs/InAlAs optical-switch fabric by cascading mach-zehnder interferometer-type optical switches with low-power and low-polarization- dependent operation

Yuta Ueda^*, Noriaki Koyama, Kazuki Kambayashi, Shinji Fujimoto, Katsuyuki Utaka, Takashi Shiota, Takeshi Kitatani

^*Corresponding author for this work

School of Fundamental Science and Engineering

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

13 Citations (Scopus)

Abstract

High-speed optical switches are essential devices to construct next-generation optical networks. We have studied 2 × 2 InAlGaAs/InAlAs hybrid-waveguide-type Mach-Zehnder interferometer-type optical switches and demonstrated low-polarization-dependent switching operation with crosstalks of less than -20 dB, injection currents of about 5 mA, and response times of about 3 ns. In this letter, our conventional 2 × 2 optical switch was extended to a 4 × 4 optical-switch fabric by a cascading approach. As a result, fundamental switching operation was confirmed with low power consumption and low polarization dependence.

Original language	English
Article number	6151035
Pages (from-to)	757-759
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	24
Issue number	9
DOIs	https://doi.org/10.1109/LPT.2012.2186959
Publication status	Published - 2012

Keywords

Cascade connection
InAlGaAs/InAlAs compound semiconductor
Mach-Zehnder (MZ) interferometer photonic switch
multimode-interference (MMI) coupler
polarization independence

ASJC Scopus subject areas

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

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10.1109/LPT.2012.2186959

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Ueda, Y., Koyama, N., Kambayashi, K., Fujimoto, S., Utaka, K., Shiota, T., & Kitatani, T. (2012). 4 ×4 InAlGaAs/InAlAs optical-switch fabric by cascading mach-zehnder interferometer-type optical switches with low-power and low-polarization- dependent operation. IEEE Photonics Technology Letters, 24(9), 757-759. Article 6151035. https://doi.org/10.1109/LPT.2012.2186959

4 ×4 InAlGaAs/InAlAs optical-switch fabric by cascading mach-zehnder interferometer-type optical switches with low-power and low-polarization- dependent operation. / Ueda, Yuta; Koyama, Noriaki; Kambayashi, Kazuki et al.
In: IEEE Photonics Technology Letters, Vol. 24, No. 9, 6151035, 2012, p. 757-759.

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

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abstract = "High-speed optical switches are essential devices to construct next-generation optical networks. We have studied 2 × 2 InAlGaAs/InAlAs hybrid-waveguide-type Mach-Zehnder interferometer-type optical switches and demonstrated low-polarization-dependent switching operation with crosstalks of less than -20 dB, injection currents of about 5 mA, and response times of about 3 ns. In this letter, our conventional 2 × 2 optical switch was extended to a 4 × 4 optical-switch fabric by a cascading approach. As a result, fundamental switching operation was confirmed with low power consumption and low polarization dependence.",

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AU - Kambayashi, Kazuki

AU - Fujimoto, Shinji

AU - Utaka, Katsuyuki

AU - Shiota, Takashi

AU - Kitatani, Takeshi

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AB - High-speed optical switches are essential devices to construct next-generation optical networks. We have studied 2 × 2 InAlGaAs/InAlAs hybrid-waveguide-type Mach-Zehnder interferometer-type optical switches and demonstrated low-polarization-dependent switching operation with crosstalks of less than -20 dB, injection currents of about 5 mA, and response times of about 3 ns. In this letter, our conventional 2 × 2 optical switch was extended to a 4 × 4 optical-switch fabric by a cascading approach. As a result, fundamental switching operation was confirmed with low power consumption and low polarization dependence.

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4 ×4 InAlGaAs/InAlAs optical-switch fabric by cascading mach-zehnder interferometer-type optical switches with low-power and low-polarization- dependent operation

Abstract

Keywords

ASJC Scopus subject areas

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