A Photonic Technique for Instantaneous Microwave Frequency Measurement Utilizing a Phase Modulator

Tu, Zhaoyang; Wen, Aijun; Gao, Yongsheng; Chen, Wei; Peng, Zhengxue; Chen, Mei

doi:10.1109/lpt.2016.2623321

Cited by 29 publications

(9 citation statements)

References 18 publications

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“…According to the transfer function of a dispersive fiber link [16], the dispersion-induced phase shifts of the ±1st order sidebands are designated as φ1, φ2. The optical expression can be written as [17] 0 1 1 2…”

Section: Principlementioning

confidence: 99%

Photonic remote microwave frequency measurement with a tunable measurement range based on dispersion compensation technology

et al. 2022

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In this paper, a novel and efficient photonic-assisted remote frequency measurement (RFM) system with a significantly simplified structure and flexible operation range is proposed. By simply changing the dispersion coefficient or length of the dispersion medium in the central station (CS), the microwave frequency measurement range in the remote antenna unit (RAU) can be tuned. In this system, the RAU and the CS is separated to ensure the concealment and safety of the signal processing unit. The measurement range of the RFM system can be tuned easily during the measurement process without system reconstruction, and different RAUs located at different places can be controlled to work at the same measurement range. The simulation results show that a frequency measurement over the high frequency range (>18 GHz) can be achieved with a measurement error better than ±0.2 GHz. Noteworthy, the impact of the non-ideal factors such as bias drift, intensity noise, phase noise, the equivalent deviation of the polarization beam splitter (PBS), and the dispersion value of the single mode fiber (SMF) is also discussed. It has been proved that they have little influence on the system performance over the high frequency range.

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Section: Principlementioning

confidence: 99%

Photonic remote microwave frequency measurement with a tunable measurement range based on dispersion compensation technology

et al. 2022

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“…The reported frequency-to-power-mapping based frequency measurement systems have the drawbacks of requiring different-wavelength laser sources [4], multiple optical modulators [5], multiple dispersive mediums [6], specially designed components such as photonic crystal nanocavities [7], or electrical components such as a power divider [8] that limits the frequency measurement range. The frequency-to-power-mapping based frequency measurement systems reported in [9]- [11] have an all-optical, single-laser and single-modulator structure. However, they have stability issues.…”

Section: Chan)mentioning

confidence: 99%

“…Note that, as in most reported photonics-based frequency measurement systems [6], [8], [11], the above analysis assumes the system is operated under small signal modulation condition and hence only the first order modulation sidebands are included in the analysis. However, in practice, the input RF signal power may not be small and may not be known prior to frequency measurement.…”

Section: Topology and Operation Principlementioning

confidence: 99%

Photonics-Based Instantaneous Microwave Frequency Measurement System With Improved Resolution and Robust Performance

2022

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This paper presents a photonics-based instantaneous microwave frequency measurement system. The system operates based on the frequency-to-power mapping technique. The trade-off between frequency measurement range and resolution, which is present in the reported frequency-to-power-mapping based frequency measurement systems, is addressed by designing the system to produce two amplitude comparison functions (ACFs). Using two ACFs enables an RF signal frequency in a specified range to be determined while having an improved resolution and smaller errors compared to using only one ACF for frequency measurement. The proposed frequency measurement system is designed to have a simple structure and robust performance suitable for use in real world applications. The effect of the higher order sidebands and harmonics on the system performance are investigated. Proof-of-concept experiments are carried out with results showing frequency measurement errors can be reduced by using the proposed system that generates two ACFs for frequency measurement.

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“…In order to increase the measurement bandwidth as well as reduce the volume of the hardware and the expense, numerous microwave photonic frequency measurement methods [1] including frequency-to-power mapping, photonics-assisted microwave channelization, and frequency-to-time mapping (FTM) have been demonstrated. The technique, where the frequency information is mapped to an optical/microwave power has been reported to implement the instantaneous frequency measurement [3][4][5][6]. The power ratio between dual-channel optical/microwave powers is established using an optical comb filter [3], an optical mixing unit [4], or a couple of dispersive delay elements [5,6] as frequency-dependent transfer function.…”

Section: Introductionmentioning

confidence: 99%

“…The technique, where the frequency information is mapped to an optical/microwave power has been reported to implement the instantaneous frequency measurement [3][4][5][6]. The power ratio between dual-channel optical/microwave powers is established using an optical comb filter [3], an optical mixing unit [4], or a couple of dispersive delay elements [5,6] as frequency-dependent transfer function. The FPM-based technique can capture the instantaneous frequency in a wideband and high resolution (up to multi-MHz), but it cannot be used to measure the multitone signal.…”

Section: Introductionmentioning

confidence: 99%

A Compact Multifrequency Measurement System Based on an Integrated Frequency-Scanning Generator

Shi

Hao

et al. 2020

Applied Sciences

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A compact multifrequency measurement system based on frequency-to-time mapping technology is proposed and experimentally demonstrated using an integrated frequency scanning signal generator. The relationship between the input microwave frequency and the time difference of a pair of pulses is established to realize the frequency information mapping to the time information. As a main part in the proposed frequency measurement system, the frequency-scanning signal is generated by heterodyning of two lasers with the monolithic integrated laser array, of which one is modulated on a saw-tooth signal. In the proposed frequency measurement system, it can measure single/multiple frequency microwave signals with a large bandwidth for high resolution and flexible tunable measurement range for multifrequency band. In the experimental demonstration, the single frequency measurement errors are less than 90 MHz within the measurement range from 4 to 12 GHz. For two-tone signal, the measurement resolution reaches about 150 MHz.

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A Photonic Technique for Instantaneous Microwave Frequency Measurement Utilizing a Phase Modulator

Cited by 29 publications

References 18 publications

Photonic remote microwave frequency measurement with a tunable measurement range based on dispersion compensation technology

Photonic remote microwave frequency measurement with a tunable measurement range based on dispersion compensation technology

Photonics-Based Instantaneous Microwave Frequency Measurement System With Improved Resolution and Robust Performance

A Compact Multifrequency Measurement System Based on an Integrated Frequency-Scanning Generator

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