Dispersion tailoring and soliton propagation in silicon waveguides

Institute of Optics, University of Rochester, Rochester, New York, United States
Optics Letters (Impact Factor: 3.29). 06/2006; 31(9):1295-7. DOI: 10.1364/OL.31.001295
Source: PubMed


The dispersive properties of silicon-on-insulator (SOI) waveguides are studied by using the effective-index method. Extensive calculations indicate that an SOI waveguide can be designed to have its zero-dispersion wavelength near 1.5 microm with reasonable device dimensions. Numerical simulations show that soliton-like pulse propagation is achievable in such a waveguide in the spectral region at approximately 1.55 microm. The concept of path-averaged solitons is used to minimize the impact of linear loss and two-photon absorption.

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Available from: Govind P Agrawal, Jan 27, 2016
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    • "μm close to the bandgap wavelength. Moreover , even if the waveguide size is increased to move the ZDW to longer wavelength, the dispersion slope near the ZDW is not small, as shown in [187] [188] [189], causing a limited low-dispersion bandwidth. Recently, a dispersion engineering technique for integrated high-index-contrast waveguides has been proposed , in which an off-center nano-scale slot controls modal distribution at different wavelengths [59] [60]. "
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    • "Interestingly, these nonresonant effects are further enhanced inside SOI waveguides because of a tight mode confinement leading to a relatively small effective mode area ( 1 m ). Further, the dispersion inside SOI waveguides can be easily tailored by adjusting the waveguide geometry [7]–[10]. All these amalgamate to a material with rich optical features and great potential for structural and performance engineering, making silicon a viable alternative and a potential contender for integrated optics applications [11]–[13]. "
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