Information Technology

Spatial light modulator (SLM) is essentially a dynamic optical device capable of spatially distributed modulation of the amplitude, phase or polarization state of light waves. Our self-developed SLM products use silicon-based liquid crystal technology to control the arrangement of liquid crystal molecules through electrical signals to achieve precise regulation of incident light waves. This precise control capability makes the Spatial Light Modulator (SLM) an "intelligent canvas" within optical systems. It is capable of generating a wide variety of complex light field distributions within the optical path.

Spatial light modulator (SLM) is a dynamic optical component capable of real-time modulation of incident light's amplitude, phase, and polarization state under external control.

Optical scattering is a widespread physical phenomenon in nature, and light scattering is due to the complexity and spatio-temporal inhomogeneity of light propagation paths in media, e.g.

In the optical fiber communication system with physical signals to control or change the amplitude, frequency, phase, polarization and other characteristics of the optical carrier parameters of the process is called optical modulation. The role of optical modulation is to allow information to use the characteristics of the light wave itself to achieve high-speed processing and transmission, and can effectively inhibit the interference of external electromagnetic fields, so that the propagation of information is more stable. With the wide application of dense wavelength division multiplexing (DWDM) technology and the huge growth of fiber optic transmission capacity, SDH technology has long been overburdened, based on the wavelength selective switch (WSS) as the third generation of multi-functional reconfigurable optical insertion and multiplexing (ROADM) as a key device to realize the next generation of dynamic all-optical network, in recent years by the optical communication field research institutions attach great importance to, and has been rapid development. 

With the development of mobile communication business, the 6th generation mobile communication technology (6G) has become a research hotspot. 6G communication network has high transmission rate, large channel capacity, small transmission delay, high spectrum efficiency and strong reliability, etc. More importantly, 6G realizes large-scale intelligent connection between people and things, i.e., “Everything is deeply connected! “. In order to realize the many excellent characteristics of 6G communication network, how to realize multi-beam generation with ultra-large-scale antenna array has become the current research hotspot.

Vortex phenomena are seen in life, such as bathtub vortices that occur when draining water, wake vortices that detach from ships as they travel, tornadoes, typhoons, and ocean circulation. Vortex light (carrying orbital angular momentum, OAM) was first discovered and applied mainly in the field of optics, i.e., the generation of vortex photons and vortex beams, and the concept of vortex beams was first proposed by Coullet et al. in 1989. In 1922, L. Allen et al. theoretically proved the existence of OAM in vortex beams, which pushed the field into the world's forefront.

With the development of three-dimensional display technology, the research of three-dimensional display technology is changing day by day, and people want to get a more realistic visual experience. As a true three-dimensional display technology, holographic display can provide all the depth information needed by the human eye to perceive three-dimensional objects, giving people a comfortable and realistic three-dimensional visual sense. Holographic technology has a wide range of applications in military, medical, commercial and other fields.