Silicon subwavelength waveguiding devices

I. Molina-Fernández; J. G. Wangüemert-Pérez; A. Ortega-Moñux; Robert Halir; J. de Oliva Rubio; A. Sánchez-Postigo; J. M. Luque-González; Abdelfettah Hadij-Elhouati; D. Pereira-Martín; D. González-Andrade; A. V. Velasco; A. Herrero-Bermello; Jens H. Schmid; Pavel Cheben; J. Čtyroký

doi:10.1117/12.2545455

26 February 2020 Silicon subwavelength waveguiding devices

I. Molina-Fernández, J. G. Wangüemert-Pérez, A. Ortega-Moñux, Robert Halir, J. de Oliva Rubio, A. Sánchez-Postigo, J. M. Luque-González, Abdelfettah Hadij-Elhouati, D. Pereira-Martín, D. González-Andrade, A. V. Velasco, A. Herrero-Bermello, Jens H. Schmid, Pavel Cheben, J. Čtyroký

Author Affiliations +

Proceedings Volume 11290, High Contrast Metastructures IX; 112901L (2020) https://doi.org/10.1117/12.2545455
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Silicon photonics has emerged as an intense field of research due to its unique capabilities to integrate photonics and electronics into the same platform using standard semiconductor fabrication facilities. Subwavelength grating (SWG) structures, i.e. periodic nanostructured waveguides with a pitch below half the wavelength of light, allow the lossless propagation of Bloch-Floquet modes which closely resemble propagation through a homogenous waveguide with optical properties (refractive index, dispersion, birefringence) that can be tailored to fulfill specific design goals. SWG engineering is now routinely used for novel and advanced device design. Fiber-chip couplers, polarization and mode multiplexers, multimode interference couplers (MMIs), lenses, and bragg filters have been successfully designed in our group based in these concepts. In this invited talk we will review some of our last advances in the field.

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I. Molina-Fernández, J. G. Wangüemert-Pérez, A. Ortega-Moñux, Robert Halir, J. de Oliva Rubio, A. Sánchez-Postigo, J. M. Luque-González, Abdelfettah Hadij-Elhouati, D. Pereira-Martín, D. González-Andrade, A. V. Velasco, A. Herrero-Bermello, Jens H. Schmid, Pavel Cheben, and J. Čtyroký "Silicon subwavelength waveguiding devices", Proc. SPIE 11290, High Contrast Metastructures IX, 112901L (26 February 2020); https://doi.org/10.1117/12.2545455

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KEYWORDS

Waveguides

Silicon

Diffraction gratings

Optical filters

Optical design

Phase shifts

Diffraction

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