Slow-light-enhanced energy efficiency for graphene microheaters on silicon photonic crystal waveguides

Siqi Yan; Xiaolong Zhu; Lars Hagedorn Frandsen; Sanshui Xiao; N. Asger Mortensen; Jianji Dong; Yunhong Ding

doi:10.1038/ncomms14411

Slow-light-enhanced energy efficiency for graphene microheaters on silicon photonic crystal waveguides

Siqi Yan
, Xiaolong Zhu
, Lars Hagedorn Frandsen
, Sanshui Xiao
, N. Asger Mortensen
, Jianji Dong^*
, Yunhong Ding

^*Corresponding author for this work

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

193 Scopus citations

Abstract

Slow light has been widely utilized to obtain enhanced nonlinearities, enhanced spontaneous emissions and increased phase shifts owing to its ability to promote light-matter interactions. By incorporating a graphene on a slow-light silicon photonic crystal waveguide, here we experimentally demonstrate an energy-efficient graphene microheater with a tuning efficiency of 1.07 nmmW^-1 and power consumption per free spectral range of 3.99 mW. The rise and decay times (10-90%) are only 750 and 525 ns, which, to the best of our knowledge, are the fastest reported response times for microheaters in silicon photonics. The corresponding figure of merit of the device is 2.543 nW s, one order of magnitude better than results reported in previous studies. The influence of the length and shape of the graphene heater to the tuning efficiency is further investigated, providing valuable guidelines for enhancing the tuning efficiency of the graphene microheater.

Original language	English
Article number	14411
Journal	Nature Communications
Volume	8
DOIs	https://doi.org/10.1038/ncomms14411
State	Published - 9 Feb 2017
Externally published	Yes

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title = "Slow-light-enhanced energy efficiency for graphene microheaters on silicon photonic crystal waveguides",

abstract = "Slow light has been widely utilized to obtain enhanced nonlinearities, enhanced spontaneous emissions and increased phase shifts owing to its ability to promote light-matter interactions. By incorporating a graphene on a slow-light silicon photonic crystal waveguide, here we experimentally demonstrate an energy-efficient graphene microheater with a tuning efficiency of 1.07 nmmW-1 and power consumption per free spectral range of 3.99 mW. The rise and decay times (10-90\%) are only 750 and 525 ns, which, to the best of our knowledge, are the fastest reported response times for microheaters in silicon photonics. The corresponding figure of merit of the device is 2.543 nW s, one order of magnitude better than results reported in previous studies. The influence of the length and shape of the graphene heater to the tuning efficiency is further investigated, providing valuable guidelines for enhancing the tuning efficiency of the graphene microheater.",

author = "Siqi Yan and Xiaolong Zhu and Frandsen, \{Lars Hagedorn\} and Sanshui Xiao and Mortensen, \{N. Asger\} and Jianji Dong and Yunhong Ding",

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doi = "10.1038/ncomms14411",

language = "英语",

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T1 - Slow-light-enhanced energy efficiency for graphene microheaters on silicon photonic crystal waveguides

AU - Yan, Siqi

AU - Zhu, Xiaolong

AU - Frandsen, Lars Hagedorn

AU - Xiao, Sanshui

AU - Mortensen, N. Asger

AU - Dong, Jianji

AU - Ding, Yunhong

PY - 2017/2/9

Y1 - 2017/2/9

N2 - Slow light has been widely utilized to obtain enhanced nonlinearities, enhanced spontaneous emissions and increased phase shifts owing to its ability to promote light-matter interactions. By incorporating a graphene on a slow-light silicon photonic crystal waveguide, here we experimentally demonstrate an energy-efficient graphene microheater with a tuning efficiency of 1.07 nmmW-1 and power consumption per free spectral range of 3.99 mW. The rise and decay times (10-90%) are only 750 and 525 ns, which, to the best of our knowledge, are the fastest reported response times for microheaters in silicon photonics. The corresponding figure of merit of the device is 2.543 nW s, one order of magnitude better than results reported in previous studies. The influence of the length and shape of the graphene heater to the tuning efficiency is further investigated, providing valuable guidelines for enhancing the tuning efficiency of the graphene microheater.

AB - Slow light has been widely utilized to obtain enhanced nonlinearities, enhanced spontaneous emissions and increased phase shifts owing to its ability to promote light-matter interactions. By incorporating a graphene on a slow-light silicon photonic crystal waveguide, here we experimentally demonstrate an energy-efficient graphene microheater with a tuning efficiency of 1.07 nmmW-1 and power consumption per free spectral range of 3.99 mW. The rise and decay times (10-90%) are only 750 and 525 ns, which, to the best of our knowledge, are the fastest reported response times for microheaters in silicon photonics. The corresponding figure of merit of the device is 2.543 nW s, one order of magnitude better than results reported in previous studies. The influence of the length and shape of the graphene heater to the tuning efficiency is further investigated, providing valuable guidelines for enhancing the tuning efficiency of the graphene microheater.

UR - https://www.scopus.com/pages/publications/85012088669

U2 - 10.1038/ncomms14411

DO - 10.1038/ncomms14411

M3 - 文章

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AN - SCOPUS:85012088669

SN - 2041-1723

VL - 8

JO - Nature Communications

JF - Nature Communications

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ER -

Slow-light-enhanced energy efficiency for graphene microheaters on silicon photonic crystal waveguides

Abstract

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