Using modular design and standard foundry processes, we can design and implement highly integrated photonic integrated chips, such as 100-400GHz optical transceiver modules for short-range optical communications. Photonic chips can also integrate single photon sources and photon switches to provide an optical platform for future quantum computing.
Research
Quantum Optics Devices
The coupled microcavity system can also be applied to cavity quantum electrodynamic systems to achieve high-speed control of Asia-Pacific Hertz. We have designed a microcavity system composed of quantum dots and coupled microcavities to achieve high-speed modulation of Rabbi oscillations. This modulation technique can be applied to distributed quantum computing in the future.
Microcavity Pulsed Laser
Using coupled photonic crystal microcavities to control the quality factor of the microcavity in the time domain, we designed a Q-switched laser with a pulse width of up to 10 picoseconds. This kind of pulsed laser can be applied to on-chip optical interconnection to realize high-speed information transmission between computing cores on multi-core chips.
Vertical Cavity Optical Switch and Optical Modulator
Using the enhancement effect of the vertical cavity on the optical nonlinearity, we fabricated a vertical cavity photon switch based on a cylindrical structure. An optical switch with a switching speed of 20 picoseconds and a switching energy consumption of 1 femtoJoule/square micron was realized. This optical modulation device can be applied to high-speed low-power optical networks. At the process level, we have realized a micropillar structure with extremely high steepness, with an etching depth of 10 microns and a horizontal resolution of less than 200 nanometers.
Continue reading "Vertical Cavity Optical Switch and Optical Modulator"