Optical Communication

At present, 850nm VCSEL technology has been very mature, and has been widely used in the field of short distance optical interconnection using multimode fiber. With the maturity of long-wavelength VCSEL, it can be used as a low-cost high-performance laser light source, in optical fiber communication network, high-speed data transmission, parallel optical interconnection and other aspects have a major application prospects. It has the incomparable advantages of short - wavelength VCSEL in medium and long - distance high-speed transmission. The development of optical fiber access networks and the implementation of fiber-to-the-home and fiber-to-the-roadside in the future will provide a broad market demand space for long-wavelength VCSEL. Wavelength-tunable VCSEL arrays have great potential for LAN and long-distance ultra-large capacity information transmission. It can provide more wavelengths, so that the optical space parallelism and wavelength characteristics of VCSEL can be well combined, greatly improving the capacity and transmission rate of the system, and is the best choice for WDM and all-optical network construction. Multi-wavelength laser arrays have also become one of the key components of WDM systems.