• Chinese Optics Letters
  • Vol. 15, Issue 5, 050603 (2017)
Haojie Wang, Shangyuan Li, Xiaoping Zheng*, Xiaoxiao Xue, Hanyi Zhang, and Bingkun Zhou
Author Affiliations
  • Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
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    DOI: 10.3788/COL201715.050603 Cite this Article Set citation alerts
    Haojie Wang, Shangyuan Li, Xiaoping Zheng, Xiaoxiao Xue, Hanyi Zhang, Bingkun Zhou. Highly linear W-band receiver front-end based on higher-order optical sideband processing[J]. Chinese Optics Letters, 2017, 15(5): 050603 Copy Citation Text show less

    Abstract

    A highly linear W-band receiver front-end based on higher-order optical sideband (OSB) processing is proposed and experimentally demonstrated. Two-tone analysis shows that by manipulating higher-order OSBs, the third-order intermodulation distortion (IMD3) introduced by optoelectronic components (mainly modulators) in the receiver front-end can be further suppressed, and a 9 dB improvement of the ratio of the fundamental and IMD3 can be attained. In the experiment, the spurious-free dynamic range of the W-band receiver front-end is up to 122.1 dB·Hz2/3, with improvement by 9 dB compared with that of only processing the five OSBs.
    v(t)=VR[cos(Ω1t)+cos(Ω2t)],(1)

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    EMZM(t)=Eccos[π2Vπ(Vbias+v(t))]·ejωct+jφM,(2)

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    EMZM(t)=12Ecejωct+jφMn=k={[(1)nejφb+ejφb]×jnJk(m)Jnk(m)ej[kΩ1t+(nk)Ω2t]},(3)

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    EMZMP(t)=Ecejωct+jφMk={αPE0(k)ej(kΩ1tkΩ2t)+E1(k)ej[kΩ1t(1+k)Ω2t]+E1(k)ej[kΩ1t+(1k)Ω2t]+E2(k)ej[kΩ1t(2+k)Ω2t]jφP+E2(k)ej[kΩ1t+(2k)Ω2t]+jφP+E3(k)ej[kΩ1t(3+k)Ω2t]+E3(k)ej[kΩ1t+(3k)Ω2t]},(4)

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    IΩ1(t)=sin(2φb)REc2×[αPk=I01(k)·cos(Ω1t)+k=I12(k)·cos(Ω1t+φP)+k=I23(k)·cos(Ω1tφP)],(5)

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    I2Ω2Ω1(t)=sin(2φb)REc2×{αPk=I01(k)·cos[(2Ω2Ω1)t]+k=I12(k)·cos[(2Ω2Ω1)t+φP]+k=I23(k)·cos[(2Ω2Ω1)tφP]},(6)

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    Haojie Wang, Shangyuan Li, Xiaoping Zheng, Xiaoxiao Xue, Hanyi Zhang, Bingkun Zhou. Highly linear W-band receiver front-end based on higher-order optical sideband processing[J]. Chinese Optics Letters, 2017, 15(5): 050603
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