Researching | StimulatedBrillouinscatteringbased arbitrarily phase coded microwave wavefm transmitter with antidispersion transmission

Journals >Chinese Optics Letters >Volume 20 >Issue 8 >Page 083901 > Article

Chinese Optics Letters
Vol. 20, Issue 8, 083901 (2022)

Stimulated-Brillouin-scattering-based arbitrarily phase coded microwave waveform transmitter with anti-dispersion transmission

Sha Zhu¹, Kunpeng Zhai^2、3, Wei Li^2、3, and Ning Hua Zhu^2、3、*

Author Affiliations

¹College of Microelectronics, Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China

²State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

³School of Electronic, Electrical and Communication Engineering, Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

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DOI: 10.3788/COL202220.083901 Cite this Article Set citation alerts

Sha Zhu, Kunpeng Zhai, Wei Li, Ning Hua Zhu. Stimulated-Brillouin-scattering-based arbitrarily phase coded microwave waveform transmitter with anti-dispersion transmission[J]. Chinese Optics Letters, 2022, 20(8): 083901 Copy Citation Text

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Abstract

We focus on photonic generation and transmission of microwave signals in this work. Based on dual-pumped stimulated Brillouin scattering, a single-sideband (SSB) optical signal with high sideband rejection ratio is obtained. Combined with a phase-modulated optical carrier, an arbitrarily phase coded microwave signal is generated after photoelectric conversion. The SSB modulation can eliminate the fiber-dispersion-induced power dispersion naturally, and the phase modulation of the optical carrier can achieve arbitrary phase encoding and suppress background noise. The proposed scheme can achieve both generation and anti-dispersion transmission of arbitrarily phase coded signals simultaneously, which is suitable for one-to-multi long-distance radar networking.

Keywords

anti-dispersion transmission microwave photonics optical signal processing phase coded signal

E_{1} (t) = \frac{\sqrt{2}}{4} E_{c} (e^{j (2 π f_{c} t + β_{s} s (t))} + e^{j (2 π f_{c} t + β_{s} s (t))} e^{j φ_{DC 1}}),

(1)

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E_{1} (t) = \frac{\sqrt{2}}{2} E_{c} e^{j (2 π f_{c} t + β_{s} s (t))} .

(2)

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E_{2} (t) = \frac{\sqrt{2}}{2} E_{c} (J_{1} (β_{RF}) e^{j (2 π (f_{c} + f_{RF}) t + \frac{π}{2})} + J_{1} (β_{RF}) e^{j (2 π (f_{c} - f_{RF}) t + \frac{π}{2})}),

(3)

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E_{3} (t) = \frac{\sqrt{2}}{2} E_{c} (J_{1} (β_{RF}) e^{j (2 π (f_{c} + f_{RF}) t + \frac{π}{2})} + e^{j (2 π f_{c} t + β_{s} s (t))} + J_{1} (β_{RF}) e^{j (2 π (f_{c} - f_{RF}) t + \frac{π}{2})}) .

(4)

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E_{4} (t) = \frac{\sqrt{2}}{2} E_{c} (J_{1} (β_{SBS}) e^{j (2 π (f_{c} + f_{SBS}) t + \frac{π}{2})} + J_{1} (β_{SBS}) e^{j (2 π (f_{c} - f_{SBS}) t + \frac{π}{2})}),

(5)

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g (Δ f_{1}) = \frac{g_{0}}{2} \frac{{(Γ_{B} / 2)}^{2}}{Δ f_{1}^{2} + {(Γ_{B} / 2)}^{2}} + j \frac{g_{0}}{4} \frac{Γ_{B} Δ f_{1}}{Δ f_{1}^{2} + {(Γ_{B} / 2)}^{2}},

(6)

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α (Δ f_{2}) = - \frac{g_{0}}{2} \frac{{(Γ_{B} / 2)}^{2}}{Δ f_{2}^{2} + {(Γ_{B} / 2)}^{2}} - j \frac{g_{0}}{4} \frac{Γ_{B} Δ f_{2}}{Δ f_{2}^{2} + {(Γ_{B} / 2)}^{2}},

(7)

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E_{3} (t) = \frac{\sqrt{2}}{2} E_{c} (G (Δ f^{+}) J_{1} (β_{RF}) e^{j (2 π (f_{c} + f_{RF}) t + \frac{π}{2})} \cdot e^{Φ (Δ f^{+})} + e^{j (2 π f_{c} t + β_{s} s (t))} + A (Δ f^{-}) J_{1} (β_{RF}) e^{j (2 π (f_{c} - f_{RF}) t + \frac{π}{2})} e^{Φ (Δ f^{-})}),

(8)

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G (Δ f) = \exp (\frac{g_{0} I_{P} L}{2} \frac{{(Γ_{B} / 2)}^{2}}{Δ f^{2} + {(Γ_{B} / 2)}^{2}}); A (Δ f) = \exp (- \frac{g_{0} I_{P} L}{2} \frac{{(Γ_{B} / 2)}^{2}}{Δ f^{2} + {(Γ_{B} / 2)}^{2}}); Φ (Δ f) = \frac{g_{0} I_{P} L}{4} \frac{Δ f \cdot Γ_{B}}{Δ f^{2} + {(Γ_{B} / 2)}^{2}} .

(9)

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E_{3} (t) = \frac{\sqrt{2}}{2} E_{c} (G_{\max} J_{1} (β_{RF}) e^{j (2 π (f_{c} + f_{RF}) t + \frac{π}{2})} + e^{j (2 π f_{c} t + β_{s} s (t))}) .

(10)

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E_{4} (t) = \frac{\sqrt{2}}{2} E_{c} (G_{\max} J_{1} (β_{RF}) e^{j (2 π (f_{c} + f_{RF}) t + \frac{π}{2} + θ_{+ 1})} + e^{j (2 π f_{c} t + β_{s} s (t) + θ_{0})}),

(11)

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θ_{0} (f) = z β (f_{c}), θ_{+ 1} (f) = z β (f_{c}) + z β^{'} (f_{0}) f_{RF} + \frac{1}{2} z β^{''} (f_{0}) f_{RF}^{2},

(12)

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I (t) \propto \cos (2 π f_{RF} - β_{s} s (t) + \frac{π}{2} + θ_{+ 1} - θ_{0}) .

(13)

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References (16)

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Sha Zhu, Kunpeng Zhai, Wei Li, Ning Hua Zhu. Stimulated-Brillouin-scattering-based arbitrarily phase coded microwave waveform transmitter with anti-dispersion transmission[J]. Chinese Optics Letters, 2022, 20(8): 083901

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