Nonreciprocal transmission in a nonlinear photonic-crystal Fano structure with broken symmetry

Yi Yu, Yaohui Chen, Hao Hu, Weiqi Xue, Kresten Yvind, Jesper Mørk

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Nanostructures that feature nonreciprocal light trans- mission are highly desirable building blocks for realizing photonic integrated circuits. Here, a simple and ultracompact photonic-crystal structure, where a waveguide is coupled to a single nanocavity, is proposed and experimentally demon- strated, showing very efficient optical diode functionality. The key novelty of the structure is the use of cavityenhanced material nonlinearities in combination with spatial symmetry breaking and a Fano resonance to realize nonreciprocal propagation effects at ultralow power and with good wavelength tunability. The nonlinearity of the device relies on ultrafast carrier dynamics, rather than the thermal effects usually considered, allowing the demonstration of nonreciprocal operation at a bit-rate of 10 Gbit s − 1 with a low energy consumption of 4.5 fJ bit − 1
Original languageEnglish
JournalLaser & Photonics Reviews
Volume9
Issue number2
Pages (from-to)241–247
ISSN1863-8880
DOIs
Publication statusPublished - 2015

Cite this

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title = "Nonreciprocal transmission in a nonlinear photonic-crystal Fano structure with broken symmetry",
abstract = "Nanostructures that feature nonreciprocal light trans- mission are highly desirable building blocks for realizing photonic integrated circuits. Here, a simple and ultracompact photonic-crystal structure, where a waveguide is coupled to a single nanocavity, is proposed and experimentally demon- strated, showing very efficient optical diode functionality. The key novelty of the structure is the use of cavityenhanced material nonlinearities in combination with spatial symmetry breaking and a Fano resonance to realize nonreciprocal propagation effects at ultralow power and with good wavelength tunability. The nonlinearity of the device relies on ultrafast carrier dynamics, rather than the thermal effects usually considered, allowing the demonstration of nonreciprocal operation at a bit-rate of 10 Gbit s − 1 with a low energy consumption of 4.5 fJ bit − 1",
author = "Yi Yu and Yaohui Chen and Hao Hu and Weiqi Xue and Kresten Yvind and Jesper M{\o}rk",
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journal = "Laser & Photonics Reviews",
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}

Nonreciprocal transmission in a nonlinear photonic-crystal Fano structure with broken symmetry. / Yu, Yi; Chen, Yaohui; Hu, Hao; Xue, Weiqi; Yvind, Kresten; Mørk, Jesper.

In: Laser & Photonics Reviews, Vol. 9, No. 2, 2015, p. 241–247.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Nonreciprocal transmission in a nonlinear photonic-crystal Fano structure with broken symmetry

AU - Yu, Yi

AU - Chen, Yaohui

AU - Hu, Hao

AU - Xue, Weiqi

AU - Yvind, Kresten

AU - Mørk, Jesper

PY - 2015

Y1 - 2015

N2 - Nanostructures that feature nonreciprocal light trans- mission are highly desirable building blocks for realizing photonic integrated circuits. Here, a simple and ultracompact photonic-crystal structure, where a waveguide is coupled to a single nanocavity, is proposed and experimentally demon- strated, showing very efficient optical diode functionality. The key novelty of the structure is the use of cavityenhanced material nonlinearities in combination with spatial symmetry breaking and a Fano resonance to realize nonreciprocal propagation effects at ultralow power and with good wavelength tunability. The nonlinearity of the device relies on ultrafast carrier dynamics, rather than the thermal effects usually considered, allowing the demonstration of nonreciprocal operation at a bit-rate of 10 Gbit s − 1 with a low energy consumption of 4.5 fJ bit − 1

AB - Nanostructures that feature nonreciprocal light trans- mission are highly desirable building blocks for realizing photonic integrated circuits. Here, a simple and ultracompact photonic-crystal structure, where a waveguide is coupled to a single nanocavity, is proposed and experimentally demon- strated, showing very efficient optical diode functionality. The key novelty of the structure is the use of cavityenhanced material nonlinearities in combination with spatial symmetry breaking and a Fano resonance to realize nonreciprocal propagation effects at ultralow power and with good wavelength tunability. The nonlinearity of the device relies on ultrafast carrier dynamics, rather than the thermal effects usually considered, allowing the demonstration of nonreciprocal operation at a bit-rate of 10 Gbit s − 1 with a low energy consumption of 4.5 fJ bit − 1

U2 - 10.1002/lpor.201400207

DO - 10.1002/lpor.201400207

M3 - Journal article

VL - 9

SP - 241

EP - 247

JO - Laser & Photonics Reviews

JF - Laser & Photonics Reviews

SN - 1863-8880

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