Enhancement of self-phase modulation induced spectral broadening in silicon suspended membrane waveguides

Yaojing Zhang; Zhenzhou Cheng; Linghai Liu; Bingqing Zhu; Jiaqi Wang; Wen Zhou; Xinru Wu; Hon Ki Tsang

doi:10.1088/2040-8978/18/5/055503

Enhancement of self-phase modulation induced spectral broadening in silicon suspended membrane waveguides

Yaojing Zhang
, Zhenzhou Cheng
, Linghai Liu
, Bingqing Zhu
, Jiaqi Wang
, Wen Zhou
, Xinru Wu
, Hon Ki Tsang

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

15 Scopus citations

Abstract

We experimentally observed a possibly enhanced self-phase modulation (SPM) in silicon suspended membrane waveguides (SMWs) by measuring the spectral broadening of optical pulses. The nonlinear coefficient n ₂ and the two-photon absorption coefficient β ₂ of silicon SMWs were measured to be (4.6 ±0.9) ×10^-18 m² W^-1 and 0.46 cm GW^-1 at 1555 nm wavelength. We also proposed a method of using SPM-induced spectral broadening to obtain the coupling loss of a single grating coupler and experimentally compared the spectra of two grating couplers in silicon SMWs and in silicon-on-insulator waveguides.

Original language	English
Article number	055503
Journal	Journal of Optics
Volume	18
Issue number	5
DOIs	https://doi.org/10.1088/2040-8978/18/5/055503
State	Published - May 2016
Externally published	Yes

Keywords

nonlinear
self-phase modulation
silicon-oninsulator
suspended membrane waveguide

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10.1088/2040-8978/18/5/055503

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title = "Enhancement of self-phase modulation induced spectral broadening in silicon suspended membrane waveguides",

abstract = "We experimentally observed a possibly enhanced self-phase modulation (SPM) in silicon suspended membrane waveguides (SMWs) by measuring the spectral broadening of optical pulses. The nonlinear coefficient n 2 and the two-photon absorption coefficient β 2 of silicon SMWs were measured to be (4.6 ±0.9) ×10-18 m2 W-1 and 0.46 cm GW-1 at 1555 nm wavelength. We also proposed a method of using SPM-induced spectral broadening to obtain the coupling loss of a single grating coupler and experimentally compared the spectra of two grating couplers in silicon SMWs and in silicon-on-insulator waveguides.",

keywords = "nonlinear, self-phase modulation, silicon-oninsulator, suspended membrane waveguide",

author = "Yaojing Zhang and Zhenzhou Cheng and Linghai Liu and Bingqing Zhu and Jiaqi Wang and Wen Zhou and Xinru Wu and Tsang, \{Hon Ki\}",

note = "Publisher Copyright: {\textcopyright} 2016 IOP Publishing Ltd.",

year = "2016",

month = may,

doi = "10.1088/2040-8978/18/5/055503",

language = "英语",

volume = "18",

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TY - JOUR

T1 - Enhancement of self-phase modulation induced spectral broadening in silicon suspended membrane waveguides

AU - Zhang, Yaojing

AU - Cheng, Zhenzhou

AU - Liu, Linghai

AU - Zhu, Bingqing

AU - Wang, Jiaqi

AU - Zhou, Wen

AU - Wu, Xinru

AU - Tsang, Hon Ki

PY - 2016/5

Y1 - 2016/5

N2 - We experimentally observed a possibly enhanced self-phase modulation (SPM) in silicon suspended membrane waveguides (SMWs) by measuring the spectral broadening of optical pulses. The nonlinear coefficient n 2 and the two-photon absorption coefficient β 2 of silicon SMWs were measured to be (4.6 ±0.9) ×10-18 m2 W-1 and 0.46 cm GW-1 at 1555 nm wavelength. We also proposed a method of using SPM-induced spectral broadening to obtain the coupling loss of a single grating coupler and experimentally compared the spectra of two grating couplers in silicon SMWs and in silicon-on-insulator waveguides.

AB - We experimentally observed a possibly enhanced self-phase modulation (SPM) in silicon suspended membrane waveguides (SMWs) by measuring the spectral broadening of optical pulses. The nonlinear coefficient n 2 and the two-photon absorption coefficient β 2 of silicon SMWs were measured to be (4.6 ±0.9) ×10-18 m2 W-1 and 0.46 cm GW-1 at 1555 nm wavelength. We also proposed a method of using SPM-induced spectral broadening to obtain the coupling loss of a single grating coupler and experimentally compared the spectra of two grating couplers in silicon SMWs and in silicon-on-insulator waveguides.

KW - nonlinear

KW - self-phase modulation

KW - silicon-oninsulator

KW - suspended membrane waveguide

UR - https://www.scopus.com/pages/publications/84969654943

U2 - 10.1088/2040-8978/18/5/055503

DO - 10.1088/2040-8978/18/5/055503

M3 - 文章

AN - SCOPUS:84969654943

SN - 2040-8978

VL - 18

JO - Journal of Optics

JF - Journal of Optics

IS - 5

M1 - 055503

ER -

Enhancement of self-phase modulation induced spectral broadening in silicon suspended membrane waveguides

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