With the development of "electrification and intelligence" in the global automotive industry, automotive lidar has become a core component of automatic/assisted driving. With its excellent spot characteristics, convenient optical design, good wavelength stability, low power consumption, and low manufacturing cost, VCSEL simplifies the optical design and system architecture. It is of great significance in the application of high-performance all-solid-state medium and long-range automotive lidar. In addition, the rationally arranged D-ToF VCSEL lidar sensor can quickly and continuously generate 3D environment maps without blind spots, which is currently an ideal obstacle avoidance measure.

3D sensing is a depth sensing technology that uses lasers to enhance the camera's three-dimensional recognition function of objects, thereby enable applications such as face recognition, autonomous driving, AR/VR, and security lighting based on obtaining depth information of objects. As the core device of 3D imaging and sensing systems, VCSEL is at the top of the pyramid of the intelligent interconnection industry.

5G wireless communication is a new generation of broadband mobile communication technology featuring high speed, low latency, and large connections. Currently, lasers are used in the communications market to quickly transmit big data. WaferChina is committed to the R&D and production of semiconductor lasers and HBT radio frequency epitaxial wafers.

Laser processing uses a high-intensity laser beam. After being focused by an optical system, the relative motion between the laser beam and the workpiece is used to process the workpiece and punch, cut, weld, and clad the material. Compared with traditional processing technology, laser processing has the advantages of wide application, small material deformation, high processing precision, low energy consumption, low pollution, non-contact processing, and automated processing. It has now become a new manufacturing technology and means.

With the rapid development of the Internet, cloud computing, 5G, etc., the traditional electrical signal transmission method cannot meet the massive data processing of high-performance computers anymore. The GaAs VCSEL output beam is circular and has a small divergence angle, making it easy to couple efficiently with optical fibers and other optical components. VCSEL can achieve high-speed modulation and is widely used in short-distance, high-speed data centers.

InP-based DFB lasers and PD detectors are widely used in optical fiber communication.

With the development of science and technology and the improvement of people's living standards, non-invasive treatment is increasingly valued. VCSEL is an ideal light source for non-invasive medical technology due to its advantages of single wavelength, low power consumption and small package size. The multiple wavelength (6XXnm,808nm) VCSEL chips independently developed by WaferChina are widely used in the laser medical industry as an essential laser light source.