Software-defined reconfigurable VCSEL-based transmission.

We propose and demonstrate a programmable and self-adaptive VCSEL-based transponder for short-reach applications that is easily extensible up to access and metro scenarios. The transponder presents a monitoring system that feeds the transponder controller in order to maintain the proper transmission performance. The emerging NETCONF protocol including the YANG model controls and manages the transponder.

Spatial distribution of nonlinear interactions in subthalamic nucleus local field potentials in Parkinson'S disease.

Abnormally synchronized neural oscillations within the subthalamic nucleus have been proposed as a contributor to the pathophysiology of Parkinson's disease. Recent studies have demonstrated phase-amplitude coupling between beta rhythms and high frequency oscillations in the subthalamic nucleus in unmedicated Parkinsonian patients. However, the nature of this coupling remains unclear.

Flexible frequency comb generation in a periodically poled lithium niobate waveguide enabling optical multicasting.

We propose and demonstrate a technique for the generation of a coherent optical comb, with tunable line spacing in a periodically poled lithium niobate (PPLN) waveguide. A single continuous wave laser is modulated to generate three phase-locked seed lines, which are injected into a PPLN waveguide, to obtain line multiplication. The line spacing is set acting on the frequency of the electrical signal driving the modulator.

A 100-Gb/s noncoherent silicon receiver for PDM-DBPSK/DQPSK signals.

An integrated noncoherent silicon receiver for demodulation of 100-Gb/s polarization-division multiplexed differential quadrature phase-shift keying and polarization-division multiplexed differential binary phase-shift keying signals is demonstrated. The receiver consists of a 2D surface grating coupler, four Mach-Zehnder delay interferometers and four germanium balanced photodetectors.

All-optical binary counter based on semiconductor optical amplifiers.

A cascadable all-optical binary counter is demonstrated by using optical flip flops and logic gates based on semiconductor optical amplifiers. Two-bit counting operation as well as optical-frequency division at two different frequencies is presented. The proposed scheme is tunable in the entire C-band and can work at different counting rates without any reconfiguration.