Swiss scientists have successfully developed the first group consisting only of carbon (Group IV) composed of ‘germanium and tin semiconductor lasers’, which means that it can be compatible with other elements of the family, such as silicon and lead. To put it more generally, this study is equivalent to turning on the chip in the use of laser communication gate (not only faster than the copper wiring rate, and also more energy-efficient). Although the use of germanium laser technology has been demonstrated before the chip, but the study of the core of this program is more easy to implement – because it can be embedded directly into the chip. Scientists from PGI-9 and Paul Scherrer Institute of Eurex have tried to use germanium and tin as an accessory, and in silicon wafers long taking the test welding of steel pipe. It was found that the germanium tin compounds were capable of simultaneously generating and amplifying the laser signal and that the tin element appeared to be the main optical function of the new facility. PGI-9 doctoral student StephenWirths to make up: ‘The high tin content determines its optical function, this is the first time we doped in the lattice of more than 10% of tin without loss of its optical quality notching machine.’


At present, the semiconductor lasers used in electronic systems are mainly composed of elements of the third or fifth group in the periodic table, such as gallium arsenide. Because of this, the laser made from these materials is not compatible with other silicon-based semiconductor installations (not only difficult, but also difficult). In addition, because of its adjacent data with different coefficients, the installation of life will be reduced. PGI-9 Dr. DanBuca said: ‘This laser installation to the lowest temperature in the history of things (minus 183 degrees Celsius / minus 297.4 degrees Fahrenheit).’ Believe that this test system in the optimization, will bring even more excellent performance drill hole in angle iron. In addition, the synchronous circuit clock signal can use up to 30% of the energy, so that in the light transmission process to throttle a lot of energy. The full text of the study, to move to the ‘Nature Photonics’ (NaturePhotonics) magazine on the sidelines.