Chinese Journal of Lasers, Volume. 47, Issue 6, 606005(2020)
One-Way Time Transfer Method Based on Dual-Fiber Link
Figures & Tables(10)
Fig. 2. Simulation results of one-way time delay difference variation of dual-wavelength optical signal in 75 km fiber link
Fig. 3. Simulation results of proportionality coefficient with different wavelength differences in 75 km fiber link
Fig. 4. Experimental setup for one-way time delay measurement in 75 km dual-fiber link
Fig. 5. Time delay of single-wavelength signal in 50 km fiber link. (a) True value; (b) Kalman filter value
Fig. 6. Time delay difference of dual-wavelength signals in 50 km fiber. (a) True value; (b) Kalman filter value
Fig. 7. Time delay of single-wavelength signal in 75 km fiber. (a) True value; (b) Kalman filter value
Fig. 8. Time delay difference of dual-wavelength signal in 75 km fiber link. (a) True value; (b) Kalman filter value
Table 1. Physical parameters of dual-fiber one-way link experiment
View tableTable 1. Physical parameters of dual-fiber one-way link experiment
Parameter Value Parameter Value Dual-fiber length 75 km Fiber loss 0.187 dB/km Remote site location 50 km Measurement resolution of TIC 20 ps Initial temperature 26 ℃ Temperature variation period 30 min Modulation on λ1 1 s-1 Modulation on λ2 10 MHz Wavelength of λ1 1530.3 nm Wavelength of λ2 1552.5 nm Output power of LD1 -1.0 dBm Output power of LD2 -1.3 dBm
Table 2. Data of one-way time transfer experiment based on dual-fiber link
View tableTable 2. Data of one-way time transfer experiment based on dual-fiber link
Parameter Fiber length /km Site Wavelength / nm Data at 500 s /s Data at 2000 s /s Data variations within 1500 s /s Proportion TIC1 50 Remote site 1530.3 (λ1) 2.4791038×10-4 2.478973×10-4 -1.308×10-8 TIC2 50 Remote site 1530.3 (λ1)、 1552.5 (λ2) 3.56652×10-7 3.56701×10-7 4.9×10-11 -266.9 TIC3 50 +25 Local site 1530.3 (λ1) 3.7178643×10-4 3.7176648×10-4 -1.995×10-8 TIC4 50 +25 Local site 1530.3 (λ1)、 1552.5 (λ2) 6.80941×10-8 6.81719×10-8 7.78×10-11 -256.4
Tools
Get Citation
Copy Citation Text
Wei Heng, Lu Lin, Pu Tao, Zheng Jilin, Zhao Jiyong, Zhang Baofu, Wu Chuanxin. One-Way Time Transfer Method Based on Dual-Fiber Link[J]. Chinese Journal of Lasers, 2020, 47(6): 606005
Paper Information
Category: Fiber optics and optical communication
Received: Jan. 14, 2020
Accepted: --
Published Online: Jun. 3, 2020
The Author Email: Lin Lu (nj_lulin@163.com)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20