Aerospace communications have captured the attention of the market following the successful launch of the Shenzhou XIV manned spacecraft. As a result, more and more people are concerned about the growth of aerospace communications companies. It is also important to note that optical devices are frequently used in the aerospace industry. Check out the article in this edition by clicking on FIBCONET!
Performs a variety of tasks such as transmission and reception, wavelength division multiplexing, gain amplification, switching, and system management. Active and passive devices are the two categories. Optical passive devices are optoelectronic devices that do not require external energy to drive the work, such as optical fiber connectors, fiber couplers, wavelength division multiplexers, optical attenuators, optical filters, etc. Optical active devices are optoelectronic devices that need external energy to drive the work in order to achieve photoelectric signal conversion, such as fiber connector, fiber adapter, optical attenuators, optical filters, etc.
A manned spacecraft will need to be equipped with tens of thousands of connectors, and the quality of the connectors is key to the space mission. Connectors belong to the basic components, initially used in the military industry, with the connector market demand upward trend in recent years is obvious, the application area gradually expanded. From the connector end-products, automotive, telecommunications and data communications, computers and peripherals, industrial, transportation, aerospace, military and other six major areas together occupy more than 80% of the total market demand for connectors. From the regional distribution of the global connector market, China, Europe, North America, Asia Pacific (excluding China and Japan), Japan and other five major areas occupy more than 90% of the total market share, with the same time, the world’s manufacturing and production centres gradually shift to China, China has become the world’s largest connector production base. From the industry environment, the global connector market in 2022 is expected to maintain a medium to high growth rate of 7% to 9%.
In addition, optical modules and devices also shine in space missions. 2016, the “Tiangong-2” space laboratory used optical modules for astronautics for the first time, replacing traditional electrical communication with optical communication, quickly realizing the photoelectric conversion of data and images, providing technical support for data transmission in the space station, solving the problem of limited electrical transmission rate and susceptibility to space radiation. susceptible to space radiation, marking an important breakthrough in the field of optical communication devices in China. 2017. The “Tianzhou-1” cargo spacecraft uses a variety of digital signal transmission optical modules, multi-group optical cables and optical fiber connectors to complete the transmission, delivery and reception of spacecraft data, solving the design needs of small size and weight of spacecraft signal transmission equipment. 2020, in China’s most complex space mission to date –The Chang’e 5 lunar exploration project uses a three-dimensional imaging sensitive phase laser to provide data for the selection of a precise landing site, and a lander velocimetry module to measure the speed of the lander relative to the lunar surface by detecting the frequency information of the laser echo.
In this Shenzhou XIV mission, the power supply subsystem, docking mechanism subsystem, propulsion module structure and assembly, measurement and control communication subsystem, measurement and control communication subsystem overall circuit subsystem propulsion module cable network, etc. were used. The transponder and air-to-air communication machine are important components of the measurement and control communication system. The transponder is used to transmit telemetry, remote control, voice and orbit measurement data between the spacecraft and the ground; the air-to-air communication machine establishes a two-way communication link with the core module of the space station.
As time progresses, development never stops, and optical communication will certainly help more applications in the future. The above is the full content of this article, for reference only! For more information, please visit FIBCONET.