| CI Cheng,WU Hong,TANG Ran,LIU Bo,CHEN Xing,ZHANG Xue-song,ZHANG Yu,ZHAO Ying-xin.Digital output compensation for precise frequency transfer over commercial fiber link[J].Optoelectronics Letters,2018,14(2):109-113 |
| Digital output compensation for precise frequency transfer over commercial fiber link |
| Author Name | Affiliation | | CI Cheng | Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Electronic Infor-mation and Optical Engineering, Nankai University, Tianjin 300071, China | | WU Hong | Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Electronic Infor-mation and Optical Engineering, Nankai University, Tianjin 300071, China | | TANG Ran | Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Electronic Infor-mation and Optical Engineering, Nankai University, Tianjin 300071, China | | LIU Bo | Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Electronic Infor-mation and Optical Engineering, Nankai University, Tianjin 300071, China
Key laboratory of Optical Information Science and Technology, Ministry of Education, Nankai University, Tianjin 300071, China | | CHEN Xing | Institute of Quantum Electronics, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China | | ZHANG Xue-song | Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Electronic Infor-mation and Optical Engineering, Nankai University, Tianjin 300071, China | | ZHANG Yu | Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Electronic Infor-mation and Optical Engineering, Nankai University, Tianjin 300071, China | | ZHAO Ying-xin | Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Electronic Infor-mation and Optical Engineering, Nankai University, Tianjin 300071, China |
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| 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. |
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