To download the latest issue
Feb 22nd, 2012
CEA-Leti demos optical modulator in silicon with 40Gbit/s capabilities
CEA-Leti unveiled a 40Gbit/s optical modulator in silicon with a record extinction ratio of 10dB, developed by the HELIOS Project members.
An ultra-high-speed 325µm2 optical modulator enhanced via slow light propagation has been demonstrated. Slow light propagation is when light travels significantly slower in a modulator than it does through air or in a vacuum. Slow light propagation in a nanostructured 1D periodic waveguide, together with a high-speed semiconductor pn diode, demonstrated a highly efficient 500µm-long silicon electro-optical modulator device with modulation rate capabilities of 40Gbit/s.
More OPTO & PHOTONICS news