The bismuth semiconductor laser has the advantages of small volume, high efficiency, and direct drive of electric drive. It can realize the mid-infrared laser output of 1.8μm-4μm, and has important application prospects in the fields of infrared photoelectric technology, chemical gas and dangerous goods monitoring. It can be used as the seed source and the same-band pumping source for the mid-infrared fiber laser pointer. It is a hot research topic in the field of mid-infrared laser technology.
However, due to the lower thermal conductivity and high hole mobility of the germanide semiconductor material, the lateral carrier leakage causes the germanide semiconductor laser to have low efficiency, poor beam quality, and poor temperature stability.
Recently, the research team of Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, and the team of researcher Niu Zhichuan of the Institute of Semiconductors of the Chinese Academy of Sciences have proposed a silicide micro-ridge wide-area waveguide structure, which effectively suppresses lateral leakage and accumulation of carriers. The maximum energy conversion efficiency of the 1.96μm wavelength telluride laser is increased from 9.8% to 30.5%, the continuous output power exceeds 1.28W, the lateral beam quality is improved by 36%, and the threshold, temperature characteristics and current are far. The impact of the field has been significantly improved. This study provides a feasible technical solution for the realization of high-brightness germanide semiconductor lasers.
4JET microtech, a laser glass processing specialist, has opened up a new plant in Platin, near Rosenheim in southern Germany, to expand its precision processing of glass, photovoltaic films and electronic components. Laser and metering systems for glass processing. The completion of the new plant will greatly enhance the company's capabilities and service levels.
4JET Precision Technology is a subsidiary of 4JET Technologies. At the head office's Alsdorf facility, a team of engineers and physicists is dedicated to developing laser processes and integrated manufacturing tools for industrial applications. 4JET Precision Technology was established in 2016. The company has been providing precision machining services such as laser cutting, drilling, film patterning and part marking.
It is understood that with the rapid development of the electronic product market and the continuous improvement of the accuracy requirements of the domestic industrial transformation and upgrading, 4JET will be more involved in the Chinese market and further expand the Chinese market share.