![](https://www.photonics.com/Tools/Thumb.aspx?ArticleID=70426&W=320)
A University of Michigan-led team demonstrated an ultrafast, all-optical switch by pulsing circularly polarized light through an optical cavity lined with tungsten diselenide (WSe2), an ultrathin semiconductor.
The device could function as a standard optical switch or could serve as an exclusive OR (XOR) switch, a type of logic gate that produces an output signal when one input signal rotates clockwise and the other input signal rotates counterclockwise.
An all-optical switch would use light to control optical signals without the need for electrical conversion, saving time and energy in fiber optic communications.
“Because a switch is the most elementary building block of any information processing unit, an...
Comentarios recientes