Applying an electrical current in an optical switching element modulates the refractive index and switches the output port
A waveguide optical switch uses an array of optical switching elements to connect the paths of optical signals, and switch between them
Fujitsu's SiGe technology will be the basis for a new generation of high-speed optical switches capable of operating across a wide range of wavelengths
Fujitsu has developed a low-power optical switching element that uses fine-patterned SiGe in the refractive-index modulator
Fujitsu Laboratories has unveiled a new optical switch technology that it claims uses half the power of conventional optical switches. The new optical waveguide switch uses photonics made from silicon germanium (SiGe) instead of pure-silicon semiconductor material. This technology will be the basis for a new generation of high-speed optical switches capable of operating across a wide range of wavelengths, while featuring perhaps the world’s lowest power requirements.
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