Sohu independent research and development of high-power semiconductor chips in the world for the first time the use of single-chip integrated optical output power of more than 4000 watts of semiconductor lasers.
On June 17, 2016, the first batch of 4 leaders in the Suzhou Talent Innovation Program was announced. The project of "High Power Semiconductor Laser Chip and Application Module, System R & D and Industrialization" declared by Chang Guanghua Optoelectronics Technology Co., Ltd. of Suzhou Hi-tech Zone is able to issue more than 10 chips on the scale of "one grain of rice" Watts light chip research and development, go to the forefront of the world.
In Chang Guanghua core company hall, I see China has completely independent intellectual property rights, reached the international advanced level of "one-chip" and "integration bar." "One-chip" is about one grain size, but thinner and thinner than rice. "One-chip chips are small, but their light-emitting parts account for only a fifth of a single-chip chip, meaning the light is emitted from a tiny gap that can exceed 10 watts. "
The technicians showed the chips developed, with "integrated bars" on the left and "single-chip" on the right. The whole process of the chip is independent research and development, with completely independent intellectual property rights.
In fact, at present, most of our high-power semiconductor chips rely on imports, while many countries have more restrictions on the export of high-performance semiconductor chips to China. "The world is entering the 'era of optical manufacturing', high-energy laser technology is also leading the manufacturing revolution.It is the current trend of international semiconductor laser technology is to achieve high power, high brightness, high efficiency, high reliability. Point to the consistency, reduce the divergence angle, control the internal stress of the chip, improve the chip polarization degree and the efficiency of the bundling. "The person in charge of Chang Guanghua Core said.
Chang Guanghua core innovation team lies in the international community for the first time the use of distributed self-innovative carrier injection technology to solve the semiconductor laser in high-power operating conditions of the nonlinear effects of the problem, to enhance output power, reached the international advanced level in the For the first time in the world, a single-chip integrated chip has been used to achieve an output power of more than 4,000 watts of semiconductor laser. As a result, as many as 560 integrated single-chip microcomputers can be coupled into a 400-micron optical fiber. And such achievements, from the chip design, epitaxial growth, device packaging, modules, fiber coupling modules and systems, the entire process is self-developed, with complete independent intellectual property rights. The team has also assumed the national 863,973,04 and other major national projects.
The team also applies chip technology to cutting and soldering, and its research and development of semiconductor laser cutting machine tool won the 2015 China Laser Industry Technology Innovation Award, making the semiconductor laser cutting technology first in the country. "In the past, gas lasers were welded in the same size as a house; welds made using our high power semiconductor laser chips were the size of a small refrigerator, and our laser welds were flat-top, temperature Is consistent and has unparalleled advantages in welding. "
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