Currently frequency analysis of optical signals relies on electrooptical modulators generating variable frequency signals. Subsequently, the response of the component due to the signal is detected and analysed. Therefore, complex calibration of the system is necessary. Additionally, the frequency range is confined to that of the electrooptical modulator.<br><br> <strong>Technology</strong><br> This invention provides a method for determining the frequency response of an electrooptical component, particularly, of a light-generating or light-modulating component. Optical pulses with a pulse frequency are generated. The electrooptical component is controlled by an electrical measuring signal with a measuring frequency in such a manner that an optical output signal is formed that is modulated with the measuring frequency. The measuring frequency is equal to an integral multiple of the pulse frequency plus a predetermined frequency offset. The pulses and the output signal are mixed, and a mixed product is detected whose modulation frequency corresponds to the predetermined frequency offset. The mixed product indicates the frequency response of the electrooptical component at the measuring frequency.<br><br>
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Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
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In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
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By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
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COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
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'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
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