On August 10th, one arrow and five stars of "Xikuang One" series were launched from Jiuquan Satellite Launch Center aboard "Ceres One" Remote Seven Launch Vehicle, and the star-carried optical switch independently developed by Xi'an Institute of Optical Machinery, Chinese Academy of Sciences (XIOMEC) was carried into space as one of the important payloads to carry out the first space validation of high-speed optical switching technology in China. To carry out the first domestic space verification of high-speed optical switching technology.
Recently, good news came, the load successfully started a number of technical verification tests as scheduled, ground test results show that: the star-carrying optical switch functions normally, the hyperspectral image information is complete, and the downlink ground analysis reaches the level of "zero bit error" and "zero packet loss", realizing all the established goals.
Xi'an Institute of Optical Machinery of the Chinese Academy of Sciences (XIOE) Successfully Verified Starborne Optical Switching Technology in Orbit
The construction of space high-capacity optical network covering the whole world is the necessary way to realize the interconnection and sharing of information among massive users in the future. Starborne optical switching technology breaks through the traditional technical barriers, directly exchanging optical signals in the optical domain without the need for "optical/electrical" and "electrical/optical" conversion, effectively solving the "electronic rate bottleneck" problem of electrical switching processing, with the advantage of network resources, and the ability of "electronic rate bottleneck" and "electronic rate bottleneck". "problem, with intelligent dynamic network resource allocation, communication system and protocol transparency, flexible network expansion, low power consumption and other advantages, is the space "high-speed information highway network overpass", is the core technology of space massive data distribution, forwarding and other processing. The success of this test, following the realization of interstellar laser communication technology verification in orbit on May 20, 2022, Xi'an Institute of Optical Machinery, high-speed space laser communication field systematic development of another important star application, and once again strengthened China's future space high-capacity optical network construction of core technology reserves and equipment support.
Xi'an Institute of Optics and Mechanics of the star optical switching technology, started in the "12th Five-Year Plan", the development of the "13th Five-Year Plan", the effect of the "14th Five-Year Plan". "At the beginning of the 12th Five-Year Plan, facing the national strategic demand for space information network, Xi'an Institute of Optical Machinery took the lead in deploying the research direction of star-carrying optical switching technology. Based on the four-wave mixing optical nonlinear effect, the optical wavelength is used as the user address, and the address recognition is carried out during the transmission of optical signals, so as to achieve the purpose of all-optical data exchange without delay, and to avoid the problem of optical caching. The technology has obtained 4 national patents, and the developed all-optical switching system has participated in the National 12th Five-Year Plan Science and Technology Innovation Achievement Exhibition as a representative achievement.
Xi'an Institute of Optical Machinery, Chinese Academy of Sciences (XIOE) successfully verified the on-board optical switching technology in orbit.
"At the beginning of the 13th Five-Year Plan period, XEMI carried out research on satellite-borne laser/microwave fusion optoelectronic hybrid switching technology. It solved the problem of laser/microwave interconversion, and developed a prototype of star-carried optical switching based on IP Over CCSDS interconnection protocol, with a throughput of 50 Gigabits per second and a packet forwarding delay of microseconds. "At the end of the 13th Five-Year Plan, we made a breakthrough in high-speed optical message switching technology, explored the all-optical message switching technology system with the core index of "100-gigabit large capacity + nanosecond low latency", and completed the development of high-speed optical message switching prototype.
Xi'an Institute of Optical Machinery, Chinese Academy of Sciences (XIOMEC) successfully verified on-orbit optical switching technology.
"At the beginning of the 14th Five-Year Plan, based on the breakthroughs in the above high-speed optical switching technology, XEMI continued to overcome a series of engineering technical problems such as high stability of optoelectronic devices, channel crosstalk suppression, and matching of switching links, etc., and the independently-developed on-board optical switching load was successfully put into orbit with the "Xikuang-1" satellite. The satellite "Xikuang One" was successfully put into orbit, indicating that Xi'an Institute of Optical Machinery (XIOME) has realized the successful turn from the basic research to the engineering application of leapfrog development.
Xi'an Institute of Optical Machinery, Chinese Academy of Sciences, Successfully Validates Starborne Optical Switching Technology in Orbit
Focusing on the demand for high-speed interconnection of information in the field of free space, Xi'an Institute of Optical Machinery is not only vigorously developing the space laser communication technology as the information "highway", but also vigorously developing the high-speed optical switching technology as the information "overpass", and the development of all-optical regeneration technology as the information "refueling station". "At present, Xi'an Institute of Optics and Mechanics has built a relatively comprehensive scientific research and engineering development platform in the field of space laser communication, which integrates optical, mechanical, electrical, thermal, information processing, space environment experiment, complete machine assembly and testing, and other functions.
