Intermodal Bragg-Scattering Four Wave Mixing in Silicon Waveguides

被引：21

作者：

Lacava, Cosimo ^{[1
]}

Ettabib, Mohamed A. ^{[1
]}

Bucio, Thalia Dominguez ^{[1
]}

Sharp, Graham ^{[2
]}

Khokhar, Ali Z. ^{[1
]}

Jung, Yongmin ^{[1
]}

Sorel, Marc ^{[2
]}

Gardes, Frederic ^{[1
]}

Richardson, David J. ^{[1
]}

Petropoulos, Periklis ^{[1
]}

Parmigiani, Francesca ^{[3
,4
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[2] Univ Glasgow, Sch Engn, Glasgow G12 8LP, Lanark, Scotland

[3] Univ Southampton, Optoelecton Res Ctr, Southampton SO17 1BJ, Hants, England

[4] Microsoft Res UK, Cambridge CB1 2FB, England

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2019年 / 37卷 / 07期

基金：

英国工程与自然科学研究理事会;

关键词：

Inter-modal four wave mixing; nonlinear optics; wavelength conversion; WAVELENGTH CONVERSION; MODE; DISPERSION;

D O I：

10.1109/JLT.2019.2901401

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We demonstrate optical wavelength conversion in a multi-mode silicon waveguide using four wave mixing Bragg scattering enabled by a dual-pump CW scheme. The original signal and the generated idler pair excite one spatial mode (first, TE mode), while the two pumps excite a different spatial mode (second, TE mode) of the same waveguide. Our approach exploits the differences in the group velocities of the various supported spatial modes to ensure phase matching only for the desired nonlinear process. In this proof-of-principle experiment, any unintended idlers are generated with an extinction ratio up to 12 dB relative to the phase-matched idlers for a pumps-to-signal-idler-pair wavelength detuning of about 70 nm. The scalability of the scheme to achieve larger and multiple signal wavelength detunings from the pump frequencies is also discussed.

引用

页码：1680 / 1685

页数：6

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