The optical chip is used to complete photoelectric signal conversion and is a highly integrated device. The optical chip is integrated for a plurality of components, such as a laser, a modulation, a coupling, a beam splitting, a wavelength division multiplexing device, a detectorandso on.

In the process of optical communication transmission, thetransmitter converts the electrical signal into an optical signal, and then modulates it to the laser to emit a laser beam, which converts to electrical signal in the receiving end through optical fiber.And then it becomes information after being modulated and demodulated. The function of the optical chip is to realize the mutual conversion between the electrical signal and the optical signal, so that the optical information stream always exists in the form of light during transmission and exchange in the network.

As a core device, optical chips are widely used in operators' core switching network equipment, wavelength division multiplexing equipment, and 5G equipment.