Photonic chip and optical quantum chip are two dimensional concepts, so there is no difference between strong and weak.
Photon chips use semiconductor light-emitting technology to generate a sustained laser beam to drive other silicon photonic devices, and quantum chips are quantum circuits integrated on the substrate to carry the function of quantum information processing.
Photonic chips can be used. The luminescence properties of indium phosphide and the optical routing capabilities of silicon are integrated into a single hybrid chip, and when a voltage is applied to indium phosphide, light enters the waveguide of the silicon wafer, producing a continuous laser beam that drives other silicon photonic devices. This silicon-based laser technology could make photonics more widely used in computers because of the use of large-scale silicon-based manufacturing techniques. Can greatly reduce the cost.
The emergence of quantum chips has benefited from the development of quantum computers. In order to realize commercialization and industrial upgrading, electronic computers need to take the road of integration. Superconducting system, semiconductor quantum dot system, micro and nano photonics system. Even atomic and ion systems want to go the way of chipping. From the development point of view, superconducting quantum chip system, from the technical walk in front of other physical systems; The traditional peninsula quantum dot system is also the target that people strive to explore. Because after all, the development of the traditional semiconductor industry has been very mature, such as semiconductor quantum chips in decoherence time and control accuracy once the threshold of fault-tolerant quantum computing is broken, it is expected to integrate the results of the existing industry of traditional semiconductors, greatly saving development costs.
The optical quantum chip is stronger, and the most different point between the optical quantum chip and the traditional chip is that it is based on light as a carrier, light instead of electricity, and a large number of optical quantum devices are integrated on the chip using micro and nano processing technology. Compared with traditional chips, this chip is more integrated, more accurate and more stable, and also has better compatibility.
The accuracy of a traditional chip depends on the diameter of the smallest transistor, and the smaller the individual transistor, the more transistors make up the entire chip, the more computing power the chip has, and the electronics that use the chip can correspondingly have more computing power.