Implementation of tapered multimode interference lightwave combiner on silicon-on-insulator substrate with negligible back-reflection

Zhigang Wu; Kazuhiko Nakamura; Soichiro Honda; Katsuyuki Utaka; Tomohiko Edura; Ken Tsutsui; Yasuo Wada

doi:10.1143/JJAP.44.L923

Implementation of tapered multimode interference lightwave combiner on silicon-on-insulator substrate with negligible back-reflection

Zhigang Wu^*, Kazuhiko Nakamura, Soichiro Honda, Katsuyuki Utaka, Tomohiko Edura, Ken Tsutsui, Yasuo Wada

^*Corresponding author for this work

School of Fundamental Science and Engineering

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

4 Citations (Scopus)

Abstract

We fabrieated and experimentally evaluated 2 × 1 tapered multimode interference (MMI) combiners on silicon-on-insulator (SOI) substrates. The tapered MMI combiner we previously proposed is expected to be free from the reflection problem usually existed in a conventional rectangular MMI coupler, and such a negligible back-reflection property was actually verified. As one of its applications, we implemented a Mach-Zehnder (MZ) modulator using the tapered MMI combiner, which is often equipped with semiconductor optical amplifiers (SOAs) for ultrahigh-speed photonic switching devices and those SOAs are quite sensitive to the back-reflection.

Original language	English
Pages (from-to)	L923-L925
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	44
Issue number	28-32
DOIs	https://doi.org/10.1143/JJAP.44.L923
Publication status	Published - 2005

Keywords

Integrated optics
Lightwave combiner
MMI
MZ modulator
Si waveguide

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.44.L923

Cite this

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title = "Implementation of tapered multimode interference lightwave combiner on silicon-on-insulator substrate with negligible back-reflection",

abstract = "We fabrieated and experimentally evaluated 2 × 1 tapered multimode interference (MMI) combiners on silicon-on-insulator (SOI) substrates. The tapered MMI combiner we previously proposed is expected to be free from the reflection problem usually existed in a conventional rectangular MMI coupler, and such a negligible back-reflection property was actually verified. As one of its applications, we implemented a Mach-Zehnder (MZ) modulator using the tapered MMI combiner, which is often equipped with semiconductor optical amplifiers (SOAs) for ultrahigh-speed photonic switching devices and those SOAs are quite sensitive to the back-reflection.",

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T1 - Implementation of tapered multimode interference lightwave combiner on silicon-on-insulator substrate with negligible back-reflection

AU - Wu, Zhigang

AU - Nakamura, Kazuhiko

AU - Honda, Soichiro

AU - Utaka, Katsuyuki

AU - Edura, Tomohiko

AU - Tsutsui, Ken

AU - Wada, Yasuo

PY - 2005

Y1 - 2005

N2 - We fabrieated and experimentally evaluated 2 × 1 tapered multimode interference (MMI) combiners on silicon-on-insulator (SOI) substrates. The tapered MMI combiner we previously proposed is expected to be free from the reflection problem usually existed in a conventional rectangular MMI coupler, and such a negligible back-reflection property was actually verified. As one of its applications, we implemented a Mach-Zehnder (MZ) modulator using the tapered MMI combiner, which is often equipped with semiconductor optical amplifiers (SOAs) for ultrahigh-speed photonic switching devices and those SOAs are quite sensitive to the back-reflection.

AB - We fabrieated and experimentally evaluated 2 × 1 tapered multimode interference (MMI) combiners on silicon-on-insulator (SOI) substrates. The tapered MMI combiner we previously proposed is expected to be free from the reflection problem usually existed in a conventional rectangular MMI coupler, and such a negligible back-reflection property was actually verified. As one of its applications, we implemented a Mach-Zehnder (MZ) modulator using the tapered MMI combiner, which is often equipped with semiconductor optical amplifiers (SOAs) for ultrahigh-speed photonic switching devices and those SOAs are quite sensitive to the back-reflection.

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KW - Lightwave combiner

KW - MMI

KW - MZ modulator

KW - Si waveguide

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Implementation of tapered multimode interference lightwave combiner on silicon-on-insulator substrate with negligible back-reflection

Abstract

Keywords

ASJC Scopus subject areas

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