Silicon Photonic-Based Integrated Microwave Photonic Reconfigurable Mixer, Phase Shifter, and Frequency Doubler

Keshavarz, Heidar; Hosseini, S. Esmail; Jamshidi, Kambiz; Plettemeier, Dirk

doi:10.1109/jlt.2021.3126661

Cited by 9 publications

(2 citation statements)

References 28 publications

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“…PhCs with photonic band gaps (PBGs) also have been used to design multiple devices for photovoltaic applications [ 13 ] like filters [ 14 ], routers [ 15 ], resonators [ 16 ], optical logic gates [ 17 ], adders [ 18 ], phase shifters [ 19 ] and some all-optical memory components [ 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. The PBGs of some different types of PhCs are generally calculated by the plane wave expansion method (PWEM) based on the Bandsolve module in Rsoftwave, which is a mathematical method used to expand a wave function or physical quantity into a linear combination of plane waves.…”

Section: Introductionmentioning

confidence: 99%

Terahertz Polarization Isolator Using Two-Dimensional Square Lattice Tellurium Rod Array

Wang,

Ai,

Gan

et al. 2024

Micromachines

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A novel terahertz polarization isolator using a two-dimensional square lattice tellurium rod array is numerically investigated at the interesting band of 0.22 THz in this short paper. The isolator is designed by inserting six hexagonal tellurium rods into a fully polarized photonic crystals waveguide with high efficiency of −0.34 dB. The TE and TM photonic band gaps of the 7 × 16 tellurium photonic crystals are computed based on the plane wave expansion method, which happen to coincide at the normalized frequency domain from 0.3859(a/λ) to 0.4033(a/λ), corresponding to the frequency domain from 0.2152 to 0.2249 THz. The operating bandwidth of the tellurium photonic crystals waveguide covers 0.2146 to 0.2247 THz, calculated by the finite element method. The six hexagonal tellurium rods with smaller circumradii of 0.16a serve to isolate transverse electric waves and turn a blind eye to transverse magnetic waves. The polarization isolation function and external characteristic curves of the envisaged structure are numerically simulated, which achieves the highest isolation of −33.49 dB at the central frequency of 0.2104 THz and the maximum reflection efficiency of 98.95 percent at the frequency of 0.2141 THz. The designed isolator with a unique function and high performance provides a promising approach for implementing fully polarized THz devices for future 6G communication systems.

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Section: Introductionmentioning

confidence: 99%

Terahertz Polarization Isolator Using Two-Dimensional Square Lattice Tellurium Rod Array

Wang,

Ai,

Gan

et al. 2024

Micromachines

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“…Integrated microwave photonic circuits are drawn great attention in recent years to implement the promise of broad bandwidth, flexibility made by microwave photonics, overcoming the obstacles of size, weight, and sensitivity to external disturbance [1] . Several microsystems, such as frequency doubler [2] , mixer [3,4] , self-interference canceller [5] and programmable processor [6,7] have been designed or demonstrated on silicon photonic, indium phosphide and hybrid platforms. Although the integrated programmable processors have demonstrated the reconfigurability of microwave photonics, these efforts focus on the passive signal processing such as filtering, linear transformation and wavelength division multiplexing.…”

Section: Introductionmentioning

confidence: 99%

Multi-functional microwave photonic circuit based on thin film lithium niobate platform

Ma,

Wang,

Liu

et al. 2023

AOPC 2023: AI in Optics and Photonics

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A broadband integrated microwave photonic mixer based on balanced photodetection

Xu¹,

Li²,

Chong³

et al. 2023

Front. Optoelectron.

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An integrated microwave photonic mixer based on silicon photonic platforms is proposed, which consist of a dual-drive Mach–Zehnder modulator and a balanced photodetector. The modulated optical signals from microwave photonic links can be directly demodulated and down-converted to intermediate frequency (IF) signals by the photonic mixer. The converted signal is obtained by conducting off-chip subtraction of the outputs from the balanced photodetector, and subsequent filtering of the high frequency items by an electrical low-pass filter. Benefiting from balanced detection, the conversion gain of the IF signal is improved by 6 dB, and radio frequency leakage and common-mode noise are suppressed significantly. System-level simulations show that the frequency mixing system has a spurious-free dynamic range of 89 dB·Hz2/3, even with deteriorated linearity caused by the two cascaded modulators. The spur suppression ratio of the photonic mixer remains higher than 40 dB when the IF varies from 0.5 to 4 GHz. The electrical-electrical 3 dB bandwidth of frequency conversion is 11 GHz. The integrated frequency mixing approach is quite simple, requiring no extra optical filters or electrical 90° hybrid coupler, which makes the system more stable and with broader bandwidth so that it can meet the potential demand in practical applications. Graphical Abstract

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Silicon Photonic-Based Integrated Microwave Photonic Reconfigurable Mixer, Phase Shifter, and Frequency Doubler

Cited by 9 publications

References 28 publications

Terahertz Polarization Isolator Using Two-Dimensional Square Lattice Tellurium Rod Array

Terahertz Polarization Isolator Using Two-Dimensional Square Lattice Tellurium Rod Array

Multi-functional microwave photonic circuit based on thin film lithium niobate platform

A broadband integrated microwave photonic mixer based on balanced photodetection

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