Acta Optica Sinica, Volume. 34, Issue 7, 706001(2014)

New Microwave Frequency Dissemination Method over Optical Fiber Based on the Phase Fluctuation Compensated at Remote Sites

Li Delong1,2、*, Lu Lin1, Zhang Baofu1, Li Xiaoya1, and Teng Yichao1
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  • 1[in Chinese]
  • 2[in Chinese]
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    In order to study the performance of microwave frequency transfer based on fiber link, a novel ultra-stable radio frequency dissemination system over optical fiber is proposed. The system utilizes a Faraday rotator mirror to reflect the optical signal back to remote sites, where the phase fluctuation introduced by temperature and pressure changes is counteracted by the frequency multiplier mixer circuit at remote sites. Its validity is tested through simulation and experiment. The transmission of 1 GHz signals over 25.2 km optical fiber is experimentally demonstrated, where relative stability of 2×10-12 s-1 and 6×10-17 d-1 is obtained. The main advantages of the proposed system are that the local sites structure is simplified, and the signal conversion of optical-electronic-optical and the phase fluctuation measurement and compensation systems can be removed at local sites. In addition, the fiber-induced phase noises can be suppressed by three orders of magnitude in the long-term.

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    Li Delong, Lu Lin, Zhang Baofu, Li Xiaoya, Teng Yichao. New Microwave Frequency Dissemination Method over Optical Fiber Based on the Phase Fluctuation Compensated at Remote Sites[J]. Acta Optica Sinica, 2014, 34(7): 706001

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Jan. 10, 2014

    Accepted: --

    Published Online: May. 14, 2014

    The Author Email: Delong Li (dleinstan@163.com)

    DOI:10.3788/aos201434.0706001

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