Distribution of high-stability 10004  GHz millimeter wave signal over 60  km optical fiber with fast phase-error-correcting capability

Sun, Dongning; Dong, Yi; Shi, Hongxiao; Xia, Zongyang; Liu, Zhangweiyi; Wang, Siwei; Xie, Weilin

doi:10.1364/ol.39.002849

Cited by 27 publications

(5 citation statements)

References 18 publications

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“…After the LO signal is transmitted back, the phase drift induced from the link is transferred to an IF signal by the dualheterodyne phase-error transfer (DHPT) structure [19]. Finally, this phase variation information is used to drive a servo, adjusting the phase of the VCO output for phase compensation.…”

Section: Principlementioning

confidence: 99%

Time-Stable Receiving System With Local Digitization Based on a Dithered Sample Clock

et al. 2023

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We present a time-stable receiving system for broadband signals transmitted via a 25 km fiber optic link. The timing jitter of the signal induced by the transmission link is precisely eliminated after the signal is digitized with a dithered sample clock. The dithered clock is generated from the phase of a voltage-controlled oscillator, introducing the same transmission timing jitter of the link. Therefore, it can withstand an unlimited range of transmission delay variations without using any optical or electrical delay lines. Experimentally, binary phase-shift keying signals with bandwidths of several hundred MHz and different carrier frequencies are transmitted and received by the proposed system. The root mean square of the calculated timing jitters of the received signals is decreased to the order of picosecond. The simple remote end and immunity to environmental perturbations of the proposed scheme make it an ideal candidate for a large-scale distributed antenna system.

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Section: Principlementioning

confidence: 99%

Time-Stable Receiving System With Local Digitization Based on a Dithered Sample Clock

et al. 2023

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“…It could effectively suppress the residual nonlinearity, but the effect of phase noise compensation is insufficient. Therefore, the optical phase-locked loop (OPLL) is introduced to servo controls the laser frequency sweep, and the residual nonlinearity and phase noise are suppressed [17][18][19] . The method has great potential to obtain high-quality FMCW LiDAR light source.…”

Section: Introductionmentioning

confidence: 99%

FMCW light source with a feedback optical phase-locked loop

Zeng,

Yang,

Zhang

et al. 2024

Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII

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A scheme of frequency linearly swept light source with a feedback phase-locked loop is proposed and demonstrated, which the stability can be significantly improved. By applying the pre-distortion method, the offset phase lock servo generates a control signal to feedback the loop and adjust the frequency of semiconductor laser source, and the frequency-swept signal can be produced. By adjusting the parameters of the offset phase lock servo, a linearly swept light source is achieved with low-frequency noise and improved robustness. In the experiment, a microwave signals with a sweep excursion of 4 GHz and phase noise of 4.6557*10 -7 rad 2 /Hz at 1 kHz have been successfully generated.

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“…Optical fibre links have shown potential to transfer frequency with much better accuracy and stability. The use of intensity modulated optical carriers around 1.55 μm (telecommunication window) to transfer radio-frequency or microwave signals have already been successfully demonstrated up to hundreds of kilometres over dedicated fibre routes [15][16][17][18][19][20]. A significant leap forward can be achieved using the optical phase of the optical carrier at 200 THz (1.…”

Section: Introductionmentioning

confidence: 99%

Frequency and time transfer for metrology and beyond using telecommunication network fibres

Lopez

Kéfélian

Jiang

et al. 2015

Comptes Rendus. Physique

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The distribution and the comparison of an ultra-stable optical frequency and accurate time using optical fibres have been greatly improved in the last ten years. The frequency stability and accuracy of optical links surpass well-established methods using the global navigation satellite system and geostationary satellites. In this paper, we present a review of the methods and the results obtained. We show that public telecommunication network carrying Internet data can be used to compare and distribute ultra-stable metrological signals over long distances. This novel technique paves the way for the deployment of a national and continental ultra-stable metrological optical network. RésuméLa distribution et la comparaison d'étalons de fréquence optique ultra-stables et d'échelle de temps ont été grandement améliorées depuis dix ans par l'emploi de fibres optiques. La stabilité de fréquence et l'exactitude des liens optiques fibrés surpassent les méthodes bien établies fondées sur les communications satellitaires. Dans cet article, nous présentons les méthodes et les résultats obtenus pendant cette décade. Nous montrons que les réseaux de télécommunication publics transportant des données internet peuvent être utilisés pour comparer et distribuer des signaux métrologiques sur de grandes distances. Ceci ouvre la voie au déploiement d'un réseau métrologique à l'échelle nationale et continentale.

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Distribution of high-stability 10004 GHz millimeter wave signal over 60 km optical fiber with fast phase-error-correcting capability

Cited by 27 publications

References 18 publications

Time-Stable Receiving System With Local Digitization Based on a Dithered Sample Clock

Time-Stable Receiving System With Local Digitization Based on a Dithered Sample Clock

FMCW light source with a feedback optical phase-locked loop

Frequency and time transfer for metrology and beyond using telecommunication network fibres

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