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13 April 2020 Optical push broom in a silicon waveguide
Mahmoud A. Gaafar, He Li, Xinlun Cai, Juntao Li, Manfred Eich, Alexander Yu. Petrov
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Proceedings Volume 11358, Nonlinear Optics and its Applications 2020; 113580D (2020) https://doi.org/10.1117/12.2555758
Event: SPIE Photonics Europe, 2020, Online Only
Abstract
We report on light trapping by a moving refractive index front inside a silicon waveguide, the so-called optical push broom effect. The front generated by a fast pump pulse collects and traps the energy of a signal wave with smaller group velocity tuned near to the band gap of the waveguide with hyperbolic dispersion. The energy of the signal wave is accumulated inside the front and distributed in frequency. The presented effect can be utilized to compress signals in time and space.
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Mahmoud A. Gaafar, He Li, Xinlun Cai, Juntao Li, Manfred Eich, and Alexander Yu. Petrov "Optical push broom in a silicon waveguide", Proc. SPIE 11358, Nonlinear Optics and its Applications 2020, 113580D (13 April 2020); https://doi.org/10.1117/12.2555758
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KEYWORDS
Waveguides
Dispersion
Silicon
Refractive index
Wave propagation
Silicon photonics
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