NTSC researchers developed All-fiber telecom band energy-time entangled biphoton source
the National Time Service Center(NTSC) of the Chinese Academy of Sciences (CAS) developed a device for All-fiber telecom band energy-time entangled biphoton source. The research is published in Chinese Optics Letters and has been selected as Editor' pick.
05 11, 2023
NTSC researchers realize an atomic mode extractor based on polarization-dependent absorption effect
The researchers proposed a scheme to effectively extract the basic spatial modes from vector beams based on the PDA technology, and the topological states of the extracted modes are well preserved.
05 11, 2023
Researchers Proposed an Active Optical Microclock Based on the Lattice-trapped Atoms
A joint research team from the National Time Service Center of the Chinese Academy of Sciences (NTSC) and the University of Exeter proposed an active optical microclock based on the lattice-trapped atoms evanescently interacting with a whispering-gallery-mode (WGM) microcavity. The numerical simulation illustrates that the microclock's frequency stability potentially reaches 1.5×10-14 at 1 s of averaging.
04 24, 2023From 9th to 14th Oct. 2022, the sixteenth meeting of the International Committee on Global Navigation Satellite Systems (ICG-16) and Series Meetings were held in Abu Dhabi, United Arab Emirates. Delegates from National Time Service Center (NTSC), Chinese Academy of Sciences (CAS) participated the great event in Abu Dhabi.
The deformation monitoring system based on BeiDou technology for Sarez Lake Dam co-developed by China and Tajikistan has been upgraded and put into service on Sept 18.
popular science book titled Time Science Musem won the excellent popular science works of Shannxi Province in 2022 organized by Shannxi Provincial Science and Technology Department On behalf of Shaanxi Province, the book was selected to participate in the national excellent popular science works selection
70th Anniversary of Beijing Time---National Time Service Center
In March 2001, the Shaanxi Astronomy Observatory was renamed as the National Time Service Center (NTSC) with the approval of the State Commission Office of Public Sector Reform. Since then, NTSC has been focusing on time service: satisfying the urgent needs of China’s development for different precision especially high precision time service
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70th Anniversary of Beiing Time---Low Frequency Time-code Time Service Station
The National Time Service Center (formerly Shaanxi Astronomy Observatory) began to study the low-frequency time code timing technology in 1993. In 1999, a practical test platform was built in Pucheng, Shaanxi Province. In 2007, a high-power low frequency time-code time service station was set up in Shangqiu, Henan Province, the call sign is BPC.
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70th Anniversary of Beijing Time---Long Wave Time Service Station
In order to meet the requirements of measurement and control of satellite launch and space technology development, the development and construction of the long wave time service station (326 project) was launched officially after the approval of the State Council in June 1973.
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70th Anniversary of Beijing Time---Shaanxi Astronomy Observatory
In the 1960s, due to the demands of large-scale economic construction, China decided to build a special time service station in the hinterland of China as soon as possible.
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