September 28, 2017

Integrated ultra-wide band wavelength-tunable hybrid external cavity silicon-based laser

  • Brenot R.
  • Chen Y.
  • De Valicourt G.
  • Debregeas H.
  • Dong P.
  • Earnshaw M.
  • Verdier A.

We demonstrate two novel hybrid lasers with the same III-V gain medium. An hybrid III-V/Si laser and its III-V/SiO2 counterpart exhibit high fiber-coupled output power without booster SOA (up to +13 dBm for III-V/Si and +10 dBm for III-V/SiO2) and a record tuning range (respectively 95 nm and 66 nm) over the C and L band with side mode suppression ratio greater than 35 dB.

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Recent Publications

January 01, 2019

Friendly, appealing or both? Characterising user experience in sponsored search landing pages

  • Bron M.
  • Chute M.
  • Evans H.
  • Lalmas M.
  • Redi M.
  • Silvestri F.

© 2017 International World Wide Web Conference Committee (IW3C2), published under Creative Commons CC BY 4.0 License. Many of today's websites have recognised the importance of mobile friendly pages to keep users engaged and to provide a satisfying user experience. However, next to the experience provided by the sites themselves, ...

January 01, 2019

Analyzing uber's ride-sharing economy

  • Aiello L.
  • Djuric N.
  • Grbovic M.
  • Kooti F.
  • Lerman K.
  • Radosavljevic V.

© 2017 International World Wide Web Conference Committee (IW3C2), published under Creative Commons CC BY 4.0 License. Uber is a popular ride-sharing application that matches people who need a ride (or riders) with drivers who are willing to provide it using their personal vehicles. Despite its growing popularity, there exist ...

January 01, 2019

The paradigm-shift of social spambots: Evidence, theories, and tools for the arms race

  • Cresci S.
  • Petrocchi M.
  • Pietro R.
  • Spognardi A.
  • Tesconi M.

© 2017 International World Wide Web Conference Committee (IW3C2), published under Creative Commons CC BY 4.0 License. Recent studies in social media spam and automation provide anecdotal argumentation of the rise of a new generation of spambots, so-called social spambots. Here, for the first time, we extensively study this novel ...