by geoffcampbell64 on 2/13/23, 4:33 PM with 1 comments
by geoffcampbell64 on 2/13/23, 4:33 PM
Researchers at the Chinese Academy of Sciences and the Democritus University of Thrace in Greece have designed seven basic logic operations—NOT, XOR, AND, OR, NOR, NAND and XNOR—using silicon-on-silica waveguides operated at 1.55 μm, which can be used for optical processing of information. The operations' performance is evaluated against the contrast ratio (CR), and with the convolutional perfectly matched layer as an absorbing boundary condition, they can achieve a speed of up to 120 Gb/s, with higher CRs than previous designs.