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Digital output compensation for precise frequency transfer over commercial fiber link

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【Author】 CI Cheng;WU Hong;TANG Ran;LIU Bo;CHEN Xing;ZHANG Xue-song;ZHANG Yu;ZHAO Ying-xin;Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Electronic Information and Optical Engineering, Nankai University;Key laboratory of Optical Information Science and Technology, Ministry of Education, Nankai University;Institute of Quantum Electronics, School of Electronics Engineering and Computer Science, Peking University;

【机构】 Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Electronic Information and Optical Engineering, Nankai University； Key laboratory of Optical Information Science and Technology, Ministry of Education, Nankai University； Institute of Quantum Electronics, School of Electronics Engineering and Computer Science, Peking University；

【摘要】 An ultra-highly precise and long-term stable frequency transmission system over 120 km commercial fiber link has been proposed and experimentally demonstrated. This system is based on digital output compensation technique to suppress phase fluctuations during the frequency transmission process. A mode-locked erbium-doped fiber laser driven by a hydrogen maser serves as an optical transmitter. Moreover, a dense wavelength division multiplexing system is able to separate forward and backward signals with reflection effect excluded. The ultimate fractional frequency instabilities for the long-distance frequency distributed system are up to 3.14×10^-15 at 1 s and 2.96×10^-19 at 10 000 s, respectively.更多还原

【Abstract】 An ultra-highly precise and long-term stable frequency transmission system over 120 km commercial fiber link has been proposed and experimentally demonstrated. This system is based on digital output compensation technique to suppress phase fluctuations during the frequency transmission process. A mode-locked erbium-doped fiber laser driven by a hydrogen maser serves as an optical transmitter. Moreover, a dense wavelength division multiplexing system is able to separate forward and backward signals with reflection effect excluded. The ultimate fractional frequency instabilities for the long-distance frequency distributed system are up to 3.14×10^-15 at 1 s and 2.96×10^-19 at 10 000 s, respectively.更多还原

【关键词】 compensation； multiplexing； precise； transmitter； backward； locked； ultimate； fractional； excluded； suppress；

【基金】 supported by the National Natural Science Foundation of China(Nos.61571244 and 61501262);the Science and Technology Project of Tianjin(No.16YFZCSF00540);the Natural Science Foundation of Tianjin(No.15JCYBJC51600)

【文献出处】 Optoelectronics Letters ,光电子快报(英文版) , 编辑部邮箱 ,2018年02期

【分类号】TN253
【下载频次】38

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