Effect of first-order PMD on signal spectrum

1 Introduction With the effective compensation of chromatic dispersion, the pulse broadening caused by polarization mode dispersion (PMD) and the drop in bit error rate have become the limiting factors for the development of high-speed optical fiber communication systems. Due

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Also talk about cameras used in these years

Recently, when I cleaned up the drawers, I accidentally discovered that the camera several years ago still had nothing to do with the drawers. I talked about these cameras with everyone, and I also talked about my views on the selected camera. The first machine was a cotta

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Uncover the mystery of the Ultrabook Ultrabook

Although the body is small, the Ultrabook Ultrabook has achieved a high performance comparable to traditional books. How exactly is it so thin? Compared with the traditional 13-inch book, where does it differ? The premise of thin and light: low-power processor + core graphics Ultrabook is

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Design high-performance USB devices with Artix-7 FPGAs

Author: Tom Myers Senior Hardware Engineer, Anritsu Company tom. Low-power Xilinx FPGA family makes bus-powered USB devices easy to design With billions of ports in the market, Universal Serial Bus (USB) is the interface of choice for connections below gigabit between host a

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HD network set-top box how to DIY add TV channels

A few days ago, the author and everyone on the "HD set-top box in the end to see how many TV channels" were shared, but I believe we are most concerned about or how to add DIY TV channels, nonsense will not say directly into the topic, the following content to Kaib

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LED Drive Power Saving Technology Development Trend

In facility agriculture, artificial light sources commonly used are fluorescent lamps and high-pressure sodium lamps. In recent years, with the development of optoelectronic technology, the brightness and efficiency of light emitting diodes (LEDs) have also been greatly improved, making th

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