Ø Professor Jianzhong Zhang won first prize of Natural Science Award of Heilongjiang Province
Fiber-optic communications have become the most important underlying architecture for human activities, carrying 90% of the world's data traffic. Full-wave fiber can realize low-loss transmission in O-L band. However, there is no matching fiber light source and amplifier. The development of O-L ultra-wideband active optical fiber has great potential for basic scientific research and market application.
The Special Optical Fiber Devices and Sensing Group proposed a new preparation process, broke through the limitations of optical fiber composition and structure, modified the theory of ion luminescence controlled by local structure, revealed the formation and recombination mechanism of Bi luminescence center, solved the problem of luminescence quenching caused by cross relaxation of Bi/Er co-doped system, and pioneered Bi/Er co-doped O-L band ultra-broadband active silica fiber. It can be used to construct O-L ultra-broadband light source, which has broad application prospects in the field of communication and sensing, and won the first prize of Natural Science Award of Heilongjiang Province in 2021.
ØFirst Prize of Technological Invention of Heilongjiang Province,Second Prize of Technological Invention of Ministry of Education
Aiming at the great demand for testing and diagnosis in the research and development of high-precision fiber optic gyroscope and high-performance fiber optic devices, we developed a high-precision testing technology for optical fiber polarization devices with complete independent intellectual property rights, overcame the key challenges such as the large range extension of optical delay and the compensation method of fiber polarization mode dispersion measurement, and developed a series of high-precision all-fiber polarization measurement instruments, the core technical indicators and performance of which are in the world leading level concerning, thus the problem of distributed high-precision measurement for optical fiber devices is solved. On this basis, a high-precision testing method for optical fiber devices is developed, which solved the problem of non-invasive and full-parameter quantitative measurement and evaluation of devices and optical paths. This technology has been used in China Aerospace Science and Industry Corporation, China Aerospace Science and Technology Corporation, China Electronics Technology Group Corporation and other enterprises, including most of the Y-wave guide producers and some Y-wave guide application companies, making them able to realize high-precision measurement and evaluation of device performance. This technology is also applied to many companies for the research and development of high precision polarization maintaining fiber ring, so that the full-parameters quantitative measurement and analysis of the optical fiber path are realized, which helps to break through the bottleneck in research and development for ultra-long polarization-maintaining fiber ring.
ØHigh frequency dielectric behavior and modulation of graphene——Second Prize in Natural Science category of Heilongjiang Science and Technology Award in 2019
The winning project mainly studied the micro-control methods of graphene heterogeneous composites, revealing the structure-activity relationship between the properties of graphene heterogeneous materials and the microstructure.
ØProfessor Jianzhong Zhang won the second prize of Technical Invention of State Grid Corporation of China
Due to the large span and long distance of the UHV transmission lines, the lines galloping is more strongly, and the online monitoring and early warning can find potential problems in time to avoid major economic losses caused by power outage. The strong electromagnetic environment of UHV is the technical barrier to the application of electrical sensors. The application of OPPC and OPGW lives, which embedded in communication fiber, in UHV power grid the potential advantages of fiber sensing technology in the field of power grid health monitoring.
The Special Optical Fiber Devices and Sensing Group focused on a variety of faults in the power grid, continued to research the application of optical fiber intelligent structure for 7 years, and invented optical fiber intelligent bolts that resist pigtail shake, optical fiber metal tension meter with multi-degree of freedom perception, and optical fiber tension sensor with main transformer tube, solving a series of problems such as optical fiber sensor packaging structure and cross-sensitivity under engineering environment, and realized the lines galloping measurement. Through the breakthrough of fiber Bragg grating, Phase-OTDR and R-OTDR sensing technology cross-class intelligent networking technology, the first measurement system of fully functional power grid structure health system was built, which solved the problem of online monitoring of smart grid structure health caused by lines galloping, and carried out demonstration application in the national State Grid.
The monitoring system can effectively identify and locate the main fault phenomena of lines and optical cables, no power outage maintenance equipment, greatly improve the efficiency of operation and maintenance, and greatly reduce the galloping monitoring equipment, temperature monitoring equipment and video monitoring equipment. In the past five years, the promotion and application of casing optical fiber detection technology has saved a lot of operating costs for enterprises, and generated more than 170 million yuan of economic benefits. Prof. Jianzhong Zhang participate in the revision of the power industry line galloping monitoring standards. Among them, the optical fiber detection technology of the bearing capacity of the UHV casing end as the primary innovation support won the second prize of technological invention of the State Grid Co., Ltd. in 2022.
