Ultra-small and ultra–fast electro-optic modulator

Thanks to optical signals, mails and data can be transmitted rapidly around the globe. But also exchange of digital information between electronic chips may be accelerated and energy efficiency might be increased by using optical signals. However, this would require simple methods to switch from electrical to optical signals. Researchers have now developed a device of 29 microns in length, which converts signals at a rate of about 40 gigabits per second. It is the most compact high-speed phase modulator in the world.

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