Vortex Laser or the Future of Shaping Data Transmission from huangxiangfeng's blog

It is reported that researchers have developed light-based communication tool that can achieve a lot of fast transmission of data in a helical path, and then resolve potential bottlenecks with the growing demand for information sharing brought data transmission. The new technology uses a vortex beam running through the helical path, so that the data is encoded as a swirling twist.

Compared to conventional burning laser pointer, the beam shape so that it has greater freedom in terms of data-encoded optical communication, as compared linear laser transmission, which is the amount of information carried by more than ten times higher. Because of the increasingly powerful silicon chips, the size of today's computer has been scaled down to build the required number has twisted beams, usually by high-capacity optical devices.

One possible method is through the use of a light source and a twist of optical angular momentum can be controlled amount of energy in the internal design of the device structure formation.

In order to produce practical applications for lasers swirl, UB researchers will be scaled down to the vortex laser chip compatible with today's computer used computer. They orbital angular momentum (OAM) in a spiral pattern of distribution of the laser, and proved the ring resonator semiconductor 2000mw green laser can produce single-mode laser OAM swirl, OAM mode can precisely define the topological charge.

The research team said, OAM related laser polarization can be further manipulated according to the needs, in order to form a radial polarization vortex. OAM laser use, especially micro-nanometer laser to address the growing demand for information capacity. The research team OAM micro laser can be used in next-generation optical communications integrated optical devices.

Since the wavelength division multiplexing and time division multiplexing technology is increasingly close to the data transmission limit, or micro-200mw green laser applications will increase the information transmission rate of telecommunications and information technology.