Photonic aided bandpass sampling in coherent phase modulated radio-over-fiber links
Photonic aided bandpass sampling in coherent phase modulated radio-over-fiber links
复制标题
相干相位调制无线电光纤链路中的光子辅助带通采样
DOI:
10.1016/j.optcom.2016.02.015
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发表时间:
2016-06
影响因子:
2.4
通讯作者:
Kun Xu
中科院分区:
文献类型:
--
作者:
Minghua Cao;Jianqiang Li;Jian Dai;Yitang Dai;Feifei Yin;Yue Zhou;Kun Xu
We have experimentally presented a digital coherent receiver employing photonic aided bandpass sampling technology for phase-modulated radio-over-fiber (RoF) links. An optical intensity modulator (IM) is utilized as the bandpass sampler which performs encoded on–off keyed pulse sequence on the optical local oscillator. Quaternary Phase Shift Keying (QPSK) modulated data signal with 20 MHz bandwidth at 5.2 GHz, 10.2 GHz and 15.2 GHz RF carrier frequency is experimentally demonstrated to be successfully detected by usingbalancedphotodiodes(BPDs)with only 800 MHz analog bandwidth. It demonstrates that the required analog bandwidth of BPDs and ADCs can be dramatically reduced in a direct sampled coherent RoF communications system.
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DOI:
10.1109/tmtt.2010.2075450
发表时间:
2010-10
影响因子:
4.3
作者:
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通讯作者:
Yizhuo Yang;C. Lim;A. Nirmalathas
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影响因子:
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作者:
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影响因子:
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作者:
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Minghua Cao;Jianqiang Li;Yitang Dai;Feifei Yin;Kun Xu