Active Delay Stabilization of a 440-km Fiber Link in a Wideband Microwave Delay System
In this paper, a wideband microwave delay system with an equivalent 440-km fiber link is presented. The fiber link propagation delay fluctuation, suffering from temperature variation, is detected incorporating with a reference RF signal. With the help of a variable optical delay line, the wideband m...
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8574933/ |
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| author | Hao Zhang Yongchuan Xiao Pengfei Qu Xuan Li Yi Wei Lijun Sun |
| author_facet | Hao Zhang Yongchuan Xiao Pengfei Qu Xuan Li Yi Wei Lijun Sun |
| author_sort | Hao Zhang |
| collection | DOAJ |
| description | In this paper, a wideband microwave delay system with an equivalent 440-km fiber link is presented. The fiber link propagation delay fluctuation, suffering from temperature variation, is detected incorporating with a reference RF signal. With the help of a variable optical delay line, the wideband microwave frequency output is phase-stabilized. A system figure of merit is investigated in detail. The results show that, with dispersion compensation, the fiber-optic delay system can operate for the frequencies up to 38 GHz. Moreover, the fiber-optic system can provide a noise figure of below 40 dB, a signal-to-noise ratio of above 51 dB and a spur level of less than –56 dB for the delayed wideband microwave frequency signal. An additive phase noise of –116 dBc/Hz at the 10 kHz offset frequency can be guaranteed for a 1 GHz frequency. With active delay stabilization, the 38 GHz frequency delayed achieves an Allan deviation of 5.8 × 10<sup>–13</sup> /s and 5.4 × 10<sup>–16</sup> /10<sup>3</sup>s, respectively. |
| format | Article |
| id | doaj-art-98c3b5774b4e4eb480033ea3938692b3 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-98c3b5774b4e4eb480033ea3938692b32025-08-20T03:33:21ZengIEEEIEEE Photonics Journal1943-06552019-01-011111710.1109/JPHOT.2018.28862818574933Active Delay Stabilization of a 440-km Fiber Link in a Wideband Microwave Delay SystemHao Zhang0https://orcid.org/0000-0002-1681-2615Yongchuan Xiao1Pengfei Qu2Xuan Li3Yi Wei4Lijun Sun5Chongqing Optoelectronics Research Institute, Chongqing, ChinaChongqing Optoelectronics Research Institute, Chongqing, ChinaChongqing Optoelectronics Research Institute, Chongqing, ChinaChongqing Optoelectronics Research Institute, Chongqing, ChinaChongqing Optoelectronics Research Institute, Chongqing, ChinaChongqing Optoelectronics Research Institute, Chongqing, ChinaIn this paper, a wideband microwave delay system with an equivalent 440-km fiber link is presented. The fiber link propagation delay fluctuation, suffering from temperature variation, is detected incorporating with a reference RF signal. With the help of a variable optical delay line, the wideband microwave frequency output is phase-stabilized. A system figure of merit is investigated in detail. The results show that, with dispersion compensation, the fiber-optic delay system can operate for the frequencies up to 38 GHz. Moreover, the fiber-optic system can provide a noise figure of below 40 dB, a signal-to-noise ratio of above 51 dB and a spur level of less than –56 dB for the delayed wideband microwave frequency signal. An additive phase noise of –116 dBc/Hz at the 10 kHz offset frequency can be guaranteed for a 1 GHz frequency. With active delay stabilization, the 38 GHz frequency delayed achieves an Allan deviation of 5.8 × 10<sup>–13</sup> /s and 5.4 × 10<sup>–16</sup> /10<sup>3</sup>s, respectively.https://ieeexplore.ieee.org/document/8574933/Fiber optics systeminstrumentation and metrology |
| spellingShingle | Hao Zhang Yongchuan Xiao Pengfei Qu Xuan Li Yi Wei Lijun Sun Active Delay Stabilization of a 440-km Fiber Link in a Wideband Microwave Delay System IEEE Photonics Journal Fiber optics system instrumentation and metrology |
| title | Active Delay Stabilization of a 440-km Fiber Link in a Wideband Microwave Delay System |
| title_full | Active Delay Stabilization of a 440-km Fiber Link in a Wideband Microwave Delay System |
| title_fullStr | Active Delay Stabilization of a 440-km Fiber Link in a Wideband Microwave Delay System |
| title_full_unstemmed | Active Delay Stabilization of a 440-km Fiber Link in a Wideband Microwave Delay System |
| title_short | Active Delay Stabilization of a 440-km Fiber Link in a Wideband Microwave Delay System |
| title_sort | active delay stabilization of a 440 km fiber link in a wideband microwave delay system |
| topic | Fiber optics system instrumentation and metrology |
| url | https://ieeexplore.ieee.org/document/8574933/ |
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