China's photonic chips are not the most advanced in the world.
Photonic chip is a new integrated circuit technology, combining photonics and microelectronics, which can realize high-speed, high-bandwidth and low-power data transmission and processing, and has wide application prospects in communication, computing, sensing and other fields. China has already made some important achievements in photonic chip technology, such as in 2018, Chinese scientists successfully developed the world's first prototype quantum computer based on photonic chips. Optical quantum computer " This is a landmark achievement. In addition, China has also carried out a lot of research and exploration in the design, manufacturing, packaging and other aspects of photonic chips, and has made some important progress.