Demonstration of all-optical switching in a symmetric Mach-Zehnder interferometer

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作者：
Univ of Glasgow, Glasgow, United Kingdom [1 ]
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来源：
Electron Lett | / 24卷 / 2095-2097期
关键词：
Energy gap - Integrated optics - Interferometers - Nonlinear optics - Optical Kerr effect - Optical waveguides - Pulsed laser applications - Refractive index - Semiconducting aluminum compounds;
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摘要：
The authors report the observation of ultrafast all-optical switching in an integrated symmetric Mach-Zehnder interferometer using the nonresonant nonlinearity of Al0.18Ga0.82As below half the bandgap. A relative switching fraction of approx.50% has been achieved using 10ps pulses at a wavelength of 1.55μm from a synchronously pumped modelocked colour-centre laser.
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