Researchers have designed an optical filter on a chip that can process optical signals from across an extremely wide spectrum of light at once, something never before available to integrated optics ...

In many photonics-based devices and systems, optical filters ensure that light is reflected or transmitted according to specific wavelengths. Now, researchers at the Karlsruhe Institute of Technology, ...

Tunable filters are optical filters that are suitable for applications requiring wavelength tuning. Two of their main specifications are the optical density (OD) and the out-of-band rejection. The ...

Modern-day communications rely on both fibre-optic cables and wireless radiofrequency (RF) microwave communications. Reaching higher data transmission capabilities is going to require technologies ...

How a single silicon chip was designed to be microwave and optical signal-processing engine. The various roles for which this engine can be reconfigured. The performance considerations that were ...

Optoelectronic components made of the semiconductor material silicon are sensitive to light with wavelengths ranging from the ultraviolet (UV), visible light, to near-infrared radiation (300-1100 nm).

Several light sources produce light across various wavelengths. While this wavelength spectrum can be useful in lighting applications, other applications require light with a restricted visible ...

Imaging equipment to observe the earth from space provides data for various uses. Wavelength-discriminated imaging at a considerable distance from the earth’s surface is the basic idea behind optical ...

Quantitative PCR (qPCR) instruments that operate in real-time need high sensitivity and the most favorable signal-to-noise ratio possible. The bandwidth of excitation, center wavelength (CWL) and ...