Stanford Researchers Make Photonic Components Faster, With A
Source: retroworks
Integrated photonic devices are poised to play a key role in a wide variety of applications, ranging from optical interconnects and sensors to quantum computing. However, only a small library of semi-analytically designed devices is currently known. In an article in Nature Photonics, researchers demonstrate the use of an inverse design method that explores the full design space of fabricable devices and allows them to design devices with previously unattainable functionality, higher performance and robustness, and smaller footprints than conventional devices. The designed a silicon wavelength demultiplexer splits 1,300nm and 1,550nm light from an input waveguide into two output waveguides, and the team has fabricated and characterized several devices. The devices display low insertion loss (2dB), low crosstalk (100nm). The device footprint is 2.8×2.8m2, making this the smallest dielectric wavelength splitter.
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