Stable radio-frequency phase distribution over optical fiber by phase-drift auto-cancellation

Li, Wei; Wang, Wen Ting; Wen, Sun; Wang, Wei Yu; Zhu, Ning Hua

doi:10.1364/ol.39.004294

Cited by 39 publications

(15 citation statements)

References 18 publications

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“…In an experiment, a 6-GHz RF signal is Fig. 4 Schematic diagram of the post-phase correction scheme without any auxiliary signal [39]. FD frequency divider transmitted over 20-km SMF with a root mean square (RMS) timing jitter of 1.33 ps.…”

Section: Post-phase Correctionmentioning

confidence: 99%

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Passive phase correction for stable radio frequency transfer via optical fiber

2015

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The transfer of radio frequency (RF) signal via optical fiber is widely adopted in distributed antenna systems and clock standard disseminating networks. To suppress the phase variation caused by fiber length fluctuation, passive phase correction technique based on frequency mixing has been proved as a promising approach due to its significant advantages over the traditional active compensation technique in terms of complexity, compensation speed, and compensation range. The phase correction can be done either in the transmitter or in the receiver, but it usually requires many stages of electronic mixing and auxiliary microwave signals, which not only increases the cost of the link but also degrades the quality of the transmitted signal. In addition, the effect of chromatic dispersion, polarization mode dispersion, and coherent Rayleigh noise in the optical fiber will further deteriorate the phase noise of the signal after transmission. In this paper, an analytical model for the stable RF transfer system based on passive phase correction is established, and the techniques developed in the last few years in solving the problems of the method are described. Future prospects and perspectives are also discussed.

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Section: Post-phase Correctionmentioning

confidence: 99%

“…The idea is demonstrated by Li et al [39] with the schematic diagram shown in Fig. 4, by which passive phase correction without any reference source is realized.…”

Section: Post-phase Correctionmentioning

confidence: 99%

Passive phase correction for stable radio frequency transfer via optical fiber

2015

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“…These schemes can greatly reduce the phase jitter, with the advantage of low noise. However, the phase recovery time will be limited to the proportional integral derivative algorithm [12], [13], and the complex feedback control circuits are indispensable. In other compensation schemes, the phase jitter is passively compensated by electric [12]- [16] or microwave photonic [17] frequency mixing based on phase conjugation.…”

Section: Introductionmentioning

confidence: 99%

Stable Radio Frequency Transmission of Single Optical Source Over Fiber Based on Passive Phase Compensation

Luo

Bai

et al. 2021

IEEE Photonics J.

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In this paper, we propose a stable radio frequency(RF) transmission scheme for optical link based on Dual drive Mach-Zehnder modulator(DDMZM). By frequency mixing, the phase jitter of the output signal caused by environment variation has been automatically compensated. Different from other passive compensation schemes, the reference signal and the pre-compensation signal are modulated on one optical carrier by a DDMZM, and the crosstalk of two RF signals can be depressed by using dispersion compensation and adjusting the bias voltage of DDMZM, without multiple frequency multiplications and divisions. Meanwhile, the noises induced by Rayleigh scattering can be suppressed by using acousto-optic modulator. Our scheme is featured by single laser diode employed and no extra phase jitter induced by wavelength differences, with the advantages of simple structure and cost-effectiveness. In the experiment, we demonstrate 10 GHz RF signal stability transmission over 50 km single mode fiber, the phase jitter mean square error is 0.82 ps during 10 hours.

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“…Applying feedback loop is the most commonly used approach to realize stable phase transfers in these applications [9], in which the phase error extracted between the reference signal and the optical fiber link round-trip signal is used to control electrical or optical modules (e.g., optical/electrical delay lines [10], fiber stretchers [11], and voltage-controlled oscillators (VCOs) [12]) for phase fluctuation cancellation. Recently, another approach named passive frequency mixing is proposed to realize stable phase transfers for clock disseminations [13]- [15], or downlink radar arrays [5], [9], [16], with the merits of rapid and endless post error cancellation, and obvious electronic complexities reduction. Until now, the schemes based on passive mixing are only used for the stable phase transfers of CW RF signals in uplink or downlink, however, stable phase transfers for pulsed RF signals and in both uplink and downlink are also required in uplink radar arrays.…”

Section: Introductionmentioning

confidence: 99%

Phase Fluctuation Cancellation for Uplink Radar Arrays Based on Passive Frequency Mixing

Liu

Luo

et al. 2018

IEEE Photonics J.

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Precise time-difference detections among different radars in uplink radar arrays require ultrastable phase transfer in bidirectional analog optical fiber links. We propose and demonstrate a scheme based on passive frequency mixing to satisfy this requirement in which two continue wave (CW) radio frequency (RF) signals after passing through double-path of the transport fiber are utilized for dynamic phase fluctuation cancellation in uplink and downlink, respectively. Our scheme has the capabilities on stable phase transfers for both CW and pulsed RF signals. Experimental results show that the phase stability improvements in uplink and downlink are greater than a factor of 30 and a factor of 20 for 2.4-GHz RF signals over a 2-h measurement period along 25-km single mode fiber.

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Stable radio-frequency phase distribution over optical fiber by phase-drift auto-cancellation

Cited by 39 publications

References 18 publications

Passive phase correction for stable radio frequency transfer via optical fiber

Passive phase correction for stable radio frequency transfer via optical fiber

Stable Radio Frequency Transmission of Single Optical Source Over Fiber Based on Passive Phase Compensation

Phase Fluctuation Cancellation for Uplink Radar Arrays Based on Passive Frequency Mixing

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