Ultra-Efficient and Broadband Nonlinear AlGaAs-on-Insulator Chip for Low-Power Optical Signal Processing

Minhao Pu*, Hao Hu, Luisa Ottaviano, Elizaveta Semenova, Dragana Vukovic, Leif Katsuo Oxenløwe, Kresten Yvind

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Four-wave mixing (FWM) is a versatile optical nonlinear parametric process that enables a plethora of signal processing functionalities in optical communication. Realization of efficient and broadband all-optical signal processing with ultra-low energy consumption has been elusive for decades. Although tremendous efforts have been put into developing various material platforms, it has remained a challenge to obtain both high efficiency and broadband operation. Here, an aluminum gallium arsenide nonlinear chip with high FWM conversion efficiency per length per pump power and an ultra-broad bandwidth is presented. Combining an ultra-high material nonlinearity and strong effective nonlinear enhancement from a high-index-contrast waveguide layout, an ultra-high conversion efficiency of −4 dB is obtained in a 3-mm-long nano-waveguide. Taking advantage of high-order dispersion, a scheme is presented to realize an ultra-broad continuous conversion bandwidth covering 1280–2020 nm. A microresonator is also utilized to demonstrate a conversion efficiency enhancement gain of more than 50 dB with respect to a waveguide device, which significantly reduces the power consumption. Moreover, wavelength conversion of an optical serial data signal is performed at a bit rate beyond terabit-per-second, showing the capabilities of this III-V semiconductor material for broadband optical signal processing.
Original languageEnglish
Article number1800111
JournalLaser & Photonics Reviews
Volume12
Issue number12
ISSN1863-8880
DOIs
Publication statusPublished - 2018

Keywords

  • All‐optical wavelength conversion
  • Four‐wave mixing
  • Integrated nonlinear optics
  • Optical signal processing
  • Third‐order nonlinear materials

Cite this

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title = "Ultra-Efficient and Broadband Nonlinear AlGaAs-on-Insulator Chip for Low-Power Optical Signal Processing",
abstract = "Four-wave mixing (FWM) is a versatile optical nonlinear parametric process that enables a plethora of signal processing functionalities in optical communication. Realization of efficient and broadband all-optical signal processing with ultra-low energy consumption has been elusive for decades. Although tremendous efforts have been put into developing various material platforms, it has remained a challenge to obtain both high efficiency and broadband operation. Here, an aluminum gallium arsenide nonlinear chip with high FWM conversion efficiency per length per pump power and an ultra-broad bandwidth is presented. Combining an ultra-high material nonlinearity and strong effective nonlinear enhancement from a high-index-contrast waveguide layout, an ultra-high conversion efficiency of {\^a}ˆ’4 dB is obtained in a 3-mm-long nano-waveguide. Taking advantage of high-order dispersion, a scheme is presented to realize an ultra-broad continuous conversion bandwidth covering 1280{\^a}€“2020 nm. A microresonator is also utilized to demonstrate a conversion efficiency enhancement gain of more than 50 dB with respect to a waveguide device, which significantly reduces the power consumption. Moreover, wavelength conversion of an optical serial data signal is performed at a bit rate beyond terabit-per-second, showing the capabilities of this III-V semiconductor material for broadband optical signal processing.",
keywords = "All‐optical wavelength conversion, Four‐wave mixing, Integrated nonlinear optics, Optical signal processing, Third‐order nonlinear materials",
author = "Minhao Pu and Hao Hu and Luisa Ottaviano and Elizaveta Semenova and Dragana Vukovic and Oxenl{\o}we, {Leif Katsuo} and Kresten Yvind",
year = "2018",
doi = "10.1002/lpor.201800111",
language = "English",
volume = "12",
journal = "Laser & Photonics Reviews",
issn = "1863-8880",
publisher = "Wiley - V C H Verlag GmbH & Co. KGaA",
number = "12",

}

Ultra-Efficient and Broadband Nonlinear AlGaAs-on-Insulator Chip for Low-Power Optical Signal Processing. / Pu, Minhao; Hu, Hao; Ottaviano, Luisa; Semenova, Elizaveta; Vukovic, Dragana; Oxenløwe, Leif Katsuo; Yvind, Kresten.

In: Laser & Photonics Reviews, Vol. 12, No. 12, 1800111, 2018.

Research output: Contribution to journalJournal articleResearchpeer-review

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T1 - Ultra-Efficient and Broadband Nonlinear AlGaAs-on-Insulator Chip for Low-Power Optical Signal Processing

AU - Pu, Minhao

AU - Hu, Hao

AU - Ottaviano, Luisa

AU - Semenova, Elizaveta

AU - Vukovic, Dragana

AU - Oxenløwe, Leif Katsuo

AU - Yvind, Kresten

PY - 2018

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