Multimode interference photonic switches (MIPS)

Shuichi Nagai; Goh Morishima; Hirokazu Inayoshi; Katsuyuki Utaka

doi:10.1109/50.996588

Multimode interference photonic switches (MIPS)

Shuichi Nagai, Goh Morishima, Hirokazu Inayoshi, Katsuyuki Utaka^*

^*Corresponding author for this work

School of Fundamental Science and Engineering

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

81 Citations (Scopus)

Abstract

The switching characteristics of multimode interference photonic switches (MIPS) are analyzed by wide-angle finite difference beam propagation method (FD-BPM). A result, it is found that the MIPS with a multimode interference (MIMI) length of 599 μm can switch the output light polarization insensitively with a crosstalk of less than -20 dB for a wavelength range of 70 nm. These analyses show that the MIPS can also have a 3-dB coupler function. Experimentally, an InGaAsP/InP 1 × 2 MIPS with a thicker InP cladding layer was fabricated and exhibited switching operation with crosstalks of -8 dB and -10 dB at 0 and 20 mA current injections, respectively. For a 2 × 2 MIPS with a thinner InP cladding layer, better switching characteristics with a crosstalk of -13 dB and an extinction ratio of 17 dB were realized.

Original language	English
Pages (from-to)	675-681
Number of pages	7
Journal	Journal of Lightwave Technology
Volume	20
Issue number	4
DOIs	https://doi.org/10.1109/50.996588
Publication status	Published - 2002 Apr

Keywords

Crosstalk
InGaAsP
Multimode interference (MMI)
Photonic switch
Semiconductor waveguide device
Wide-angle finite difference beam propagation method (FD-BPM)

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1109/50.996588

Cite this

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title = "Multimode interference photonic switches (MIPS)",

abstract = "The switching characteristics of multimode interference photonic switches (MIPS) are analyzed by wide-angle finite difference beam propagation method (FD-BPM). A result, it is found that the MIPS with a multimode interference (MIMI) length of 599 μm can switch the output light polarization insensitively with a crosstalk of less than -20 dB for a wavelength range of 70 nm. These analyses show that the MIPS can also have a 3-dB coupler function. Experimentally, an InGaAsP/InP 1 × 2 MIPS with a thicker InP cladding layer was fabricated and exhibited switching operation with crosstalks of -8 dB and -10 dB at 0 and 20 mA current injections, respectively. For a 2 × 2 MIPS with a thinner InP cladding layer, better switching characteristics with a crosstalk of -13 dB and an extinction ratio of 17 dB were realized.",

keywords = "Crosstalk, InGaAsP, Multimode interference (MMI), Photonic switch, Semiconductor waveguide device, Wide-angle finite difference beam propagation method (FD-BPM)",

author = "Shuichi Nagai and Goh Morishima and Hirokazu Inayoshi and Katsuyuki Utaka",

note = "Funding Information: Manuscript received July 2, 2001; revised December 10, 2001. This work was supported by Grant-in Aid for Science Research on Priority Areas A (Grant 13026224) and by Science Research A (Grant 0935021) from the Ministry of Education, Science, Sports, and Cultures.",

year = "2002",

month = apr,

doi = "10.1109/50.996588",

language = "English",

volume = "20",

pages = "675--681",

journal = "Journal of Lightwave Technology",

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T1 - Multimode interference photonic switches (MIPS)

AU - Nagai, Shuichi

AU - Morishima, Goh

AU - Inayoshi, Hirokazu

AU - Utaka, Katsuyuki

N1 - Funding Information: Manuscript received July 2, 2001; revised December 10, 2001. This work was supported by Grant-in Aid for Science Research on Priority Areas A (Grant 13026224) and by Science Research A (Grant 0935021) from the Ministry of Education, Science, Sports, and Cultures.

PY - 2002/4

Y1 - 2002/4

N2 - The switching characteristics of multimode interference photonic switches (MIPS) are analyzed by wide-angle finite difference beam propagation method (FD-BPM). A result, it is found that the MIPS with a multimode interference (MIMI) length of 599 μm can switch the output light polarization insensitively with a crosstalk of less than -20 dB for a wavelength range of 70 nm. These analyses show that the MIPS can also have a 3-dB coupler function. Experimentally, an InGaAsP/InP 1 × 2 MIPS with a thicker InP cladding layer was fabricated and exhibited switching operation with crosstalks of -8 dB and -10 dB at 0 and 20 mA current injections, respectively. For a 2 × 2 MIPS with a thinner InP cladding layer, better switching characteristics with a crosstalk of -13 dB and an extinction ratio of 17 dB were realized.

AB - The switching characteristics of multimode interference photonic switches (MIPS) are analyzed by wide-angle finite difference beam propagation method (FD-BPM). A result, it is found that the MIPS with a multimode interference (MIMI) length of 599 μm can switch the output light polarization insensitively with a crosstalk of less than -20 dB for a wavelength range of 70 nm. These analyses show that the MIPS can also have a 3-dB coupler function. Experimentally, an InGaAsP/InP 1 × 2 MIPS with a thicker InP cladding layer was fabricated and exhibited switching operation with crosstalks of -8 dB and -10 dB at 0 and 20 mA current injections, respectively. For a 2 × 2 MIPS with a thinner InP cladding layer, better switching characteristics with a crosstalk of -13 dB and an extinction ratio of 17 dB were realized.

KW - Crosstalk

KW - InGaAsP

KW - Multimode interference (MMI)

KW - Photonic switch

KW - Semiconductor waveguide device

KW - Wide-angle finite difference beam propagation method (FD-BPM)

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Multimode interference photonic switches (MIPS)

Abstract

Keywords

ASJC Scopus subject areas

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