Guoco Photoncore subsidiary's participation in the Chinese business of Coherent Lasers of the Netherlands will carry out a number of major strategic cooperation with CHILAS

CAVPIC (Haining) Optoelectronics Co., LTD. (CAVPIC), a subsidiary of Guoco Optocore, recently completed its investment in CHILAS China, a Dutch coherent laser company, and will carry out a number of major strategic cooperation with CHILAS.

01 Eco subsidiary Kaiwei Peko participates in CHILAS

As a crown product in the laser industry, coherent light source has attracted much attention and is the core device for applications such as Lidar, wind measurement radar, coherent optical communication, optical fiber sensing, optical quantum communication and quantum computing. However, due to its high technical difficulty and high cost, it has become an important bottleneck for the large-scale popularization of the industry. For many years, CHILAS has been committed to using low-loss silicon nitride silicon optical chips as external cavities, integrating InP gain chips, and developing chip integrated coherent lasers. Its products will have great cost advantages, and will also have excellent performance in terms of optical power, phase noise, laser spectrum, etc.

Guoco Optical Core has been committed to the development and application of silicon optical chips based on low-loss silicon nitride, and has not only obtained the basic IP authorization and process transfer of the international leading silicon nitride silicon optical technology, but also achieved the process penetration of the technology in the domestic CMOS platform. These foundations will greatly accelerate the application of silicon nitride silicon optical technology. As a homologous technology, the deep cooperation with CHILAS will greatly promote the development and landing of products such as FMCW LiDAR, and will also lay a good foundation for the construction of silicon optical ecology.

CAVPIC, as an important member of Guoco Optical Core silicon optical ecology, will focus on the integrated laser and optical engine business based on silicon optical chips. This cooperation will effectively guarantee the technology and cost control of GOCO's FMCW LiDAR business, and will also provide coherent light source and light engine products for communication, sensing and other industries.

Through years of cooperation with CHILAS, CAVPIC has developed a number of narrow line width and tunable coherent light sources such as CF3 and CT3, product prototypes have been provided to a number of domestic customers for testing, and relevant mass production products will be officially released in the near future.

02 Committed to vehicle phased array Lidar chip

It is understood that Guoke Optical core is a key introduction of the pan-semiconductor industry in Haining Economic Development Zone, Zhejiang Province. The company was established on the basis of integrating the former Zhongke Tianxin Technology (Beijing) Co., Ltd. and Xiamen and Yihua Optoelectronic Technology Co., LTD., with R & D, production and sales organizations in Haining, Beijing, Xiamen, Shenzhen and other places. Gotech Photonics is determined to provide customers with cost-effective LiDAR products and solutions based on core silicon-based photonic chip technology for a variety of application scenarios from consumer electronics to autonomous driving.

The company team was born in the Chinese Academy of Sciences, with more than 20 years of research in the field of silicon optics, accumulated a lot of technical experience and top talents, is one of the earliest teams engaged in related fields in China. Since 2017, the company has carried out industry-university-research cooperation with a number of domestic and foreign top research and development institutions through joint laboratories and other forms, and launched the first generation of optical phased array technology solid-state Lidar chip A2 in February 2018. On this basis, the company's R&D team continued to optimize and improve, and completed the flow sheet of a new generation of optical phased array technology solid-state lidar chip in August 2019, and organized third-party experts to review the flow sheet results, and unanimously recognized that the flow sheet reached the domestic leading and international advanced level.

In order to meet the needs of vehicle-mounted phased array lidar application and mass production, after two years of development, GOCO Optical core has built a new silicon-based material system, and cooperated with the world's leading technology enterprises in the flow sheet and IP, solving several international technical problems such as insufficient optical power and sidelobe interference in the previous vehicle-mounted phased array lidar. The large-scale production of the phased array Lidar scanning chip has been completed (the chip and the packaged sample are shown in Figure 1 and Figure 2), which clears the key technical obstacles for the application of the real vehicle phased array lidar.

On the technical route, GuocO Optical Core pioneered the use of a new silicon-based material system waveguide in the world and developed a laser radar scanning chip that can be customized from 780nm to 1650nm. With the advantages of new material technology such as low transmission loss and weak nonlinearity, the chip has comprehensive and significant advanced characteristics compared with the traditional photonic material system, so as to ensure that it can carry more than watt-level continuous light or peak power kilowatt-level pulse laser energy in a waveguide several hundred nanometers wide, providing feasibility for the application of on-board liDAR with a detection distance of 100 meters or even kilometers. At the same time, due to the adoption of the new material system, the coupling loss of less than 1dB and the transmission loss of about 0.1dB/cm are guaranteed. In addition, the original hardware design and software development of intelligent adaptive algorithm are adopted to achieve a sidelobe rejection ratio that is an order of magnitude lower than that of traditional phased array technology. After packaging, the chip can achieve wide scanning Angle, high collimation, high contrast laser beam scanning, and realize the ideal combination with optical integrated coherence detection technology. The chip manufacturing process is compatible with CMOS process, and has large-scale, low-cost industrialization feasibility, and the cost of mass production can be less than 30 US dollars.

In addition to LiDAR scanning chips, GOCO Optical Core has also made significant progress in FM-CW coherent detection, beam control and other technologies, and has developed low-cost all-solid-state laser radar modules based on phased array scanning chips.

Source: Laser Manufacturing Network