Operators are making efforts to build 5G base stations, and the demand for optical modules continues to expand. In 2019, my country has built more than 130,000 5G base stations. 2020 is the first year of large-scale construction of 5G base stations, which mainly cover urban areas. In 2020, 5G networ......

Optical fiber amplifiers multiply the photon stream by means of electronic excitation. The term also refers to fiber optic sensors.

The full name of VCESL is a vertical cavity surface emitting laser, which is a semiconductor laser structure in which an optical resonant cavity is formed in the direction perpendicular to the semiconductor epitaxial wafer and the laser beam emitted is perpendicular to the surface of the substrate. ......

High power ultrafast lasers are widely used because of their short pulse duration and peak power.Ultrafast lasers are used in material processing applications, medical fiber lasers, microscopy and other fields.

Compared with discrete optical fiber amplification technology, Distributed Raman Amplification (DRA) technology has shown obvious advantages in many aspects such as noise figure, nonlinear damage, gain bandwidth, etc., and has gained advantages in the field of optical fiber communication and sensing......

Lithography is a technique for transferring a designed pattern directly or through an intermediate medium onto a flat surface, excluding areas of the surface that do not require a pattern.