Photonic aided vector millimeter-wave signal generation without digital-to-analog converter

Yanyi Wang; Kaihui Wang; Wen Zhou; Jianjun Yu

doi:10.3788/COL202119.011101

Journals >Chinese Optics Letters >Volume 19 >Issue 1 >Page 011101 > Article

Chinese Optics Letters
Vol. 19, Issue 1, 011101 (2021)

Photonic aided vector millimeter-wave signal generation without digital-to-analog converter

Yanyi Wang^*, Kaihui Wang, Wen Zhou, and Jianjun Yu

Author Affiliations

Shanghai Institute for Advanced Communication and Data Science, Key Laboratory for Information Science of Electromagnetic Waves, Fudan University, Shanghai 200433, China

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DOI: 10.3788/COL202119.011101 Cite this Article Set citation alerts

Yanyi Wang, Kaihui Wang, Wen Zhou, Jianjun Yu. Photonic aided vector millimeter-wave signal generation without digital-to-analog converter[J]. Chinese Optics Letters, 2021, 19(1): 011101 Copy Citation Text

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Abstract

A novel scheme of photonic aided vector millimeter-wave (mm-wave) signal generation without a digital-to-analog converter (DAC) is proposed. Based on our scheme, a 20 Gb/s 4-ary quadrature amplitude modulation (4-QAM) mm-wave signal is generated without using a DAC. The experiment results demonstrate that the bit error rate (BER) of 20 Gb/s 4-QAM mm-wave signal can reach below the hard-decision forward-error-correction threshold after a delivery over 1 m wireless distance. Because the DAC is not required, it can reduce the system cost. Besides, by using photonic technology, the system is easily integrated to create large-scale production and application in high-speed optical communication.

Keywords

digital-to-analog converter millimeter-wave photonic aiding

E_{i} (t) = A_{i} E a_{i} (t) {J_{0} (β π) \cos (2 π f_{c} t + φ_{i 0}) + J_{2} (β π) {\cos [2 π (f_{c} - 2 f_{RF}) t + φ_{i 1}] + \cos [2 π (f_{c} + 2 f_{RF}) t + φ_{i 2}]}} i = 1, 2,

(1)

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E_{upper} (t) = A_{1} E a_{1} (t) {J_{0} (β π) \cos (2 π f_{c} t + φ_{10}) + J_{2} (β π) {\cos [2 π (f_{c} - 2 f_{RF}) t + φ_{11}] + \cos [2 π (f_{c} + 2 f_{RF}) t + φ_{12}]}} .

(2)

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E_{lower} (t) = A_{2} E a_{2} (t) {J_{0} (β π) \cos (2 π f_{c} t + φ_{20} + θ) + J_{2} (β π) {\cos [2 π (f_{c} - 2 f_{RF}) t + φ_{21} - θ] + \cos [2 π (f_{c} + 2 f_{RF}) t + φ_{22} + θ]}} .

(3)

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I_{1} (t) \propto G A_{1}^{2} E^{2} a_{1} (t)^{2} J_{0} (β π) J_{2} (β π) \cos (4 π f_{RF} + φ_{10} - φ_{11}) ≜ K_{1} a_{1} (t)^{2} \cos (4 π f_{RF} + φ_{10} - φ_{11}),

(4)

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I_{2} (t) \propto G A_{2}^{2} E^{2} a_{2} (t)^{2} J_{0} (β π) J_{2} (β π) \cos (4 π f_{RF} + φ_{20} - φ_{21} + 2 θ) ≜ K_{2} a_{2} (t)^{2} \cos (4 π f_{RF} + φ_{20} - φ_{21} + 2 θ),

(5)

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I (t) = I_{1} (t) + I_{2} (t) \propto K_{1} a_{1} {(t)}^{2} \cos (4 π f_{RF} + φ_{10} - φ_{11}) + K_{2} a_{2} {(t)}^{2} \cos (4 π f_{RF} + φ_{20} - φ_{21} + 2 θ) .

(6)

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K_{1} = K_{2}, φ_{10} - φ_{11} = φ_{20} - φ_{21} + 2 θ - \frac{π}{2} = φ,

(7)

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I (t) \propto K_{1} [a_{1} {(t)}^{2} \cos (4 π f_{RF} + φ) - a_{2} {(t)}^{2} \sin (4 π f_{RF} + φ)] .

(8)

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Yanyi Wang, Kaihui Wang, Wen Zhou, Jianjun Yu. Photonic aided vector millimeter-wave signal generation without digital-to-analog converter[J]. Chinese Optics Letters, 2021, 19(1): 011101

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