News

Why was Coherent’s CEO included in Trump’s China delegation? Explore the AI infrastructure boom, InP shortage, NVIDIA’s investment, and the growing importance of optical interconnects. ... [Detail]

2026-05-27

In 2025, the carbon dioxide laser has been shining for 61 years. Meanwhile, since Coherent launched the first commercial product in 1966, this world-changing invention is about to celebrate its 60th year of commercialization. For this reason, we have compiled a biography of Kumar Patel, the inventor of the CO₂ laser. ... [Detail]

2026-01-15

December 16th to 17th, a strong cold wave will affect most of central and easternin China. The lowest temperatures in some areas of North China, northern Huanghuai and other places will be close to or fall below the historical extreme values for the same period, and there will be cold and warm conditions in the south. In a major reversal, the temperature in many places in Jiangnan and other places will drop by about 20°C. Please pay attention to wearing more clothes and beware of colds. ... [Detail]

2023-12-15

Laser beam expander is a lens component that changes the diameter of laser beam and divergence Angle. The laser beam emitted from the laser has a certain divergence angle. For laser processing, a laser beam expander can make the laser beam collimated and obtain a high power density spot after focusing. ... [Detail]

2022-10-21

The research data has shown that the photoelectric conversion efficiency of CO2 RF laser is about 10%~20%, and the rest energy will be converted to waste heat. ... [Detail]

2022-06-10

Pre-excitation is also commonly referred to as pre-ionization. The the working gas discharging stably is the basis and premise of the high-efficiency output of the gas laser, and pre-ionization is an effective technical way to achieve the stable discharge of the high-pressure working gas. Because of the gas pre-excitation process, it is necessary to wait for a few seconds for the laser to fire, when every time it is turned on. ... [Detail]

2022-04-26