Laser & Optoelectronics Progress, Volume. 55, Issue 8, 81201(2018)
Time-Delay Measurement Techniques for Time Transfer over Optical Fibers
In order to meet the engineering requirements of long haul time transfer over optical fibers, a time-delay measurement method based on the time digital conversion (TDC) and the field programmable gate array (FPGA) is proposed. This method combines the characteristics of a large measurement range for FPGA and a high resolution for TDC, and thus an optical fiber time-delay measurement with a high resolution in a wide range is realized. The research results show that the measurement range of this system is 0-1 s, the resolution is 22 ps, and the uncertainty degree is superior to 100 ps.
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Zhou Xu, Chen Faxi, Zhao Kan, Liu Tao, Zhang Shougang. Time-Delay Measurement Techniques for Time Transfer over Optical Fibers[J]. Laser & Optoelectronics Progress, 2018, 55(8): 81201
Category: Instrumentation, Measurement and Metrology
Received: Jan. 15, 2018
Accepted: --
Published Online: Aug. 13, 2018
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