Nonlinear optical response of low loss silicon germanium waveguides in the mid-infrared

L. Carletti; P. Ma; Y. Yu; B. Luther-Davies; D. Hudson; C. Monat; R. Orobtchouk; S. Madden; D. J. Moss; M. Brun; S. Ortiz; P. Labeye; S. Nicoletti; C. Grillet

doi:10.1364/OE.23.008261

Nonlinear optical response of low loss silicon germanium waveguides in the mid-infrared

L. Carletti, P. Ma, Y. Yu, B. Luther-Davies, D. Hudson, C. Monat, R. Orobtchouk, S. Madden, D. J. Moss, M. Brun, S. Ortiz, P. Labeye, S. Nicoletti, C. Grillet

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53 Citations (Scopus)

Abstract

We have investigated the nonlinear optical response of low loss Si_0.6Ge_0.4 / Si waveguides in the mid-infrared wavelength range from 3.25- 4.75μm using picosecond optical pulses. We observed and measured the three and four-photon absorption coefficients as well as the Kerr nonlinear refractive index. The dynamics of the spectral broadening suggests that, in addition to multiphoton absorption, the corresponding higher order nonlinear refractive phenomena also needs to be included when high optical pulse intensities are used at mid-infrared wavelengths in this material.

Original language	English
Pages (from-to)	8261-8271
Number of pages	11
Journal	Optics Express
Volume	23
Issue number	7
DOIs	https://doi.org/10.1364/OE.23.008261
Publication status	Published - 6 Apr 2015

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title = "Nonlinear optical response of low loss silicon germanium waveguides in the mid-infrared",

abstract = "We have investigated the nonlinear optical response of low loss Si0.6Ge0.4 / Si waveguides in the mid-infrared wavelength range from 3.25- 4.75μm using picosecond optical pulses. We observed and measured the three and four-photon absorption coefficients as well as the Kerr nonlinear refractive index. The dynamics of the spectral broadening suggests that, in addition to multiphoton absorption, the corresponding higher order nonlinear refractive phenomena also needs to be included when high optical pulse intensities are used at mid-infrared wavelengths in this material.",

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T1 - Nonlinear optical response of low loss silicon germanium waveguides in the mid-infrared

AU - Carletti, L.

AU - Ma, P.

AU - Yu, Y.

AU - Luther-Davies, B.

AU - Hudson, D.

AU - Monat, C.

AU - Orobtchouk, R.

AU - Madden, S.

AU - Moss, D. J.

AU - Brun, M.

AU - Ortiz, S.

AU - Labeye, P.

AU - Nicoletti, S.

AU - Grillet, C.

PY - 2015/4/6

Y1 - 2015/4/6

N2 - We have investigated the nonlinear optical response of low loss Si0.6Ge0.4 / Si waveguides in the mid-infrared wavelength range from 3.25- 4.75μm using picosecond optical pulses. We observed and measured the three and four-photon absorption coefficients as well as the Kerr nonlinear refractive index. The dynamics of the spectral broadening suggests that, in addition to multiphoton absorption, the corresponding higher order nonlinear refractive phenomena also needs to be included when high optical pulse intensities are used at mid-infrared wavelengths in this material.

AB - We have investigated the nonlinear optical response of low loss Si0.6Ge0.4 / Si waveguides in the mid-infrared wavelength range from 3.25- 4.75μm using picosecond optical pulses. We observed and measured the three and four-photon absorption coefficients as well as the Kerr nonlinear refractive index. The dynamics of the spectral broadening suggests that, in addition to multiphoton absorption, the corresponding higher order nonlinear refractive phenomena also needs to be included when high optical pulse intensities are used at mid-infrared wavelengths in this material.

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U2 - 10.1364/OE.23.008261

DO - 10.1364/OE.23.008261

M3 - Article

SN - 1094-4087

VL - 23

SP - 8261

EP - 8271

JO - Optics Express

JF - Optics Express

IS - 7

ER -

Nonlinear optical response of low loss silicon germanium waveguides in the mid-infrared

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