0000000000176925
AUTHOR
Bart Kuyken
Various materials for 2-µm telecom applications
National audience
Demonstration of high speed optical transmission at 2 µm in various material based waveguides
International audience
High speed optical transmission at 2 μm in subwavelength waveguides made of various materials
We report the transmission of a 10 Gbps telecommunication signal at 2 μm in waveguides made of three different materials: Si, SiGe and TiO2. Bit error rates below 10−9 can be achieved after transmission in the devices with subwavelength dimensions.
High speed optical transmission at 2 µm in subwavelength waveguides made of various materials
International audience
Exploring titanium dioxide as a new photonic platform
International audience; We report the development of titanium dioxide-based waveguides for applications in the near-and mid-infrared. Thanks to embedded metal grating couplers, we demonstrate error free 10 Gbit/s optical transmissions at 1.55 and 2 µm. We also demonstrate octave-spanning supercontinuum in cm-long waveguides. We explore the way to improve such waveguides through optimized fabrication process.
Si and Si-rich silicon-nitride waveguides for optical transmissions and nonlinear applications around 2 µm
We show that cm-long silicon and silicon-rich silicon nitride waveguides with subwavelength transverse dimensions can efficiently sustain high-speed transmissions at 2 μm. We report the transmission of a 10 Gbit/s signal with negligible power penalty. Parametric conversion in both continuous and pulsed pump regimes is also demonstrated, as well as the spectral broadening of picosecond pulses.