Vertical cavity surface emitting terahertz lasers can be realized in conventional semiconductor microcavities with embedded quantum wells in the strong coupling regime. The cavity is to be pumped optically at half the frequency of the 2p exciton state. Once a threshold population of 2p excitons is achieved, a stimulated terahertz transition populates the lower exciton-polariton branch, and the ...

The purely optical manipulation of particles has gained increasing interest in recent years. Especially the combination of optical manipulation with microfluidics offers new possibilities, such as the contamination-free handling of micrometer-sized particles in biology and medicine without any mechanical contact. VCSELs (vertical-cavity surface-emitting lasers) are an excellent choice for optic...

With the technology trend of using optical interconnects as an alternative to traditional copper interconnects, basic elements such as waveguides and waveguide bus structure are studied worldwide. A novel 3-node bi-directional 50μm optical waveguide bus architecture with embedded mirrors is proposed and fabricated on flexible substrate. The fabrication is achieved by lithography-free molding. D...

All-inorganic cesium lead bromide (CsPbBr3) perovskite quantum dots (QDs) have recently emerged as highly promising solution-processed materials for nextgeneration light-emitting applications. They combine the advantages of QD and perovskite materials, which makes them an attractive platform for achieving high optical gain with high stability. Here, we report an ultralow lasing threshold (0.39 ...

We present the design and test results of a novel data transmitter ASIC operating up to 20.48 Gbps with 4-level Pulse-Amplitude-Modulation (PAM4) for particle physics experiments. This ASIC, named GBS20, is fabricated in 65 nm CMOS technology. Two serializers share 5.12 GHz Phase Locked Loop (PLL) clock. The outputs from are combined into PAM4 signal that directly drives Vertical-Cavity-Surface...

The long-term reliability of the commercially available vertical-cavity surface-emitting laser (VCSEL) at 1310 nm wavelength is investigated. To do so, a high current accelerated life test used to evaluate VCSEL reliability. Variations properties that depend on operating condition are characterized by light-current-voltage, leakage and low-frequency noise. When aging 6 mA, 8 mA 10 maximum outpu...

For more than ten years, the access network market is attracted by the Vertical-Cavity Surface-Emitting Lasers well known as the acronym VCSEL. Indeed, the numerous advantages of this component make the VCSEL technology suitable for access networks and today several studies have demonstrated the feasibility of various configurations of Optical Access Network (OAN) using the VCSEL Technology. Ab...

Vertical-cavity surface-emitting lasers (VCSELs) are perfectly suited to fulfill the requirements of present and future 3D-sensing applications. However, prior operating VCSEL-based devices in public, manufacturers must ensure safe operation compliant with IEC 60825-1 standard or corresponding national equivalents.

Integrated plasmonic sources and detectors are imperative in the practical development of plasmonic circuitry for bio- and chemical sensing, nanoscale optical information processing, as well as transducers for high-density optical data storage. Here we show that vertical-cavity surface-emitting lasers (VCSELs) can be employed as an on-chip, electrically pumped source or detector of plasmonic si...

Vertical-Cavity Surface-Emitting Lasers (VCSELs) are highly promising devices for the construction of neuromorphic photonic information processing systems, due to their numerous desirable properties such as low power consumption, high modulation speed, and compactness. Of particular interest is ability VCSELs exhibit neuron-like spiking responses at ultrafast sub-nanosecond rates; thus offering...