Research Topics

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Integrated lasers and LEDs

Most of the research on integrated lasers and LEDs is focused on laser diodes heterogeneously integrated on silicon-on-insulator. This includes microdisk lasers, DFB and DBR lasers and new laser diode concepts (such as ultracompact membrane lasers). The applications are in both datacom/telecom and optical sensing, while the wavelengths range from the visible to the mid-infrared. In addition to the research on heterogeneously integrated, electrically pumped, laser diodes, there is considerable effort on the use of colloidal quantum dots for use in optically pumped light sources at different wavelengths.

Current Research Topics

GaSb on silicon short-wave infrared integrated laser sources
Quantum cascade laser integration on silicon-based waveguide circuits
InP on Si lasers for telecommunication applications
Coherent receivers with integrated narrow-linewidth lasers
GaAs on Si lasers for optical interconnect applications
Fast and widely tunable III-V/SOI DFB and DBR lasers
GaAs VCSEL integration on SiN waveguide circuits
Silicon compatible laser based on colloidal quantum dots
Ge(Sn) laser source on Si
IIIV microlasers epitaxially grown on silicon
High-speed direct modulation III-V/Si DFB lasers
Integration of colloidal quantum dots with PICs
Integrated Comb Laser

Discontinued Research Topics

Wavelength switching of semiconductor tunable lasers
Integrated thin-film microcavity lasers
Enhancing OLED light outcoupling
Non-linear applications of edge-emitting laser diodes
Multiwavelength laser on SOI
Integration of superluminescent LEDs on silicon waveguide circuits
Resonant mirror microlasers integrated on silicon
DFB lasers for all-optical signal processing
Thermally tunable lasers with polymeric passive tuning sections
III-V on silicon microdisk lasers

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