Optical Sciences

Biomolecules and nanostructures

The Optical Sciences group studies the interaction of light and matter. Our current focus is on detection and sensing/imaging with an emphasis on the development of integrated photonics. We are part of Twente University's Department of Science and Technology and member of the MESA+ institute.


Integrated Waveguide Amplifiers for Optical Interconnects (IWAOI)

  • Yean-Sheng Yong - Post-Doc
  • Sonia GarcĂ­a Blanco - Scientific Staff
  • Sergio Vázquez-Córdova - Former member

  • The increasing bandwidth requirements and interconnect data rates require use of optics for data transport at ever smaller distances. Currently, the biggest obstacles in the commercialisation of optical backplane technology for high performance computing devices are performance and cost considerations. High optical losses in optical interconnects due to materials, signal routing, and input/output coupling give rise to limited performance.
    The research project targets the development of optical waveguide amplifiers based on rare-earth-ion doped amorphous Al2O3 as well as potassium yttrium double tungstate (KYW). We aim at investigating and developing optical amplifiers operating at 850 nm, 1000 nm and 1550 nm wavelengths and optimise their integration into optical backplanes.


    The following articles have been published regarding this project:

    Temperature-dependent absorption and emission of potassium double tungstates with high ytterbium content

    (abstract) (full pdf)
    Yean-Sheng Yong, Shanmugam Aravazhi, Sergio A. Vázquez-Córdova, Joan J. Carjaval, Francesc Díaz, Jennifer L. Herek, Sonia M. García-Blanco, and Markus Pollnau
    Optics Express
    Optics Express Vol. 24, Issue 23, pp. 26825-26837 nov. 1 2016
    Printable version