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2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)最新文献

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Laser Phase Noise Measurement by Using Offset Optical Phase Locked Loop 偏置光锁相环测量激光相位噪声
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI: 10.1109/IFCS-ISAF41089.2020.9234838
H. Peng, Naijin Liu, Qijun Liang, Guangyu Gao, Yankun Li, Xiaopeng Xie, Zhangyuan Chen
{"title":"Laser Phase Noise Measurement by Using Offset Optical Phase Locked Loop","authors":"H. Peng, Naijin Liu, Qijun Liang, Guangyu Gao, Yankun Li, Xiaopeng Xie, Zhangyuan Chen","doi":"10.1109/IFCS-ISAF41089.2020.9234838","DOIUrl":"https://doi.org/10.1109/IFCS-ISAF41089.2020.9234838","url":null,"abstract":"Phase noise is a key parameter to evaluate the short-term stability of a single-frequency laser. It is of great important for many applications, such as Lidar, coherent optical communication, optical sensing, and optical atomic clock, just to name a few. In this paper, we propose a method to characterize the phase noise of a single-frequency, which based on an offset phase locked loop (OPLL). The phase of the laser under test and a low noise reference laser are locked via an offset OPLL. The phase noise of the laser under test can be extracted by the beat-note of the two lasers. Experimentally, we achieve the phase noise of a narrow-linewidth laser, which agree well with the results of a commercial optical noise analyzer.","PeriodicalId":6872,"journal":{"name":"2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)","volume":"23 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91310470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Optimization of Pumping Light for Cs Four-level Active Optical clock Cs四电平有源光时钟抽运光的优化
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI: 10.1109/IFCS-ISAF41089.2020.9234825
Tiantian Shi, Jianxiang Miao, D. Pan, Jingbiao Chen
{"title":"Optimization of Pumping Light for Cs Four-level Active Optical clock","authors":"Tiantian Shi, Jianxiang Miao, D. Pan, Jingbiao Chen","doi":"10.1109/IFCS-ISAF41089.2020.9234825","DOIUrl":"https://doi.org/10.1109/IFCS-ISAF41089.2020.9234825","url":null,"abstract":"In this work, we present the optimization of pumping light for Cs four-level active optical clock in detail. The relationships between the power stability of 1470 nm clock-transition laser and the power stability, as well as frequency stability, of 459 nm pumping laser are demonstrated, respectively. Through building an external cavity diode laser with power stability of $1times 10^{-4}@ 1 mathrm{s}$, the linewidth broadening of 1470 nm laser caused by power fluctuation of pumping laser is reduced to 43 Hz. Moreover, utilizing modulation transfer spectroscopy technique, the frequency stability of pumping laser is optimized by two orders of magnitude. Ultimately, the linewidth of 1470 nm active optical frequency standard is reduced to 120 Hz.","PeriodicalId":6872,"journal":{"name":"2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)","volume":"13 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90996433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Chip-scale Active Optical Clock Scheme 芯片级有源光时钟方案
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI: 10.1109/IFCS-ISAF41089.2020.9234940
Haosen Shang, D. Pan, Xiaopeng Xie, Tiantian Shi, Jingbiao Chen
{"title":"Chip-scale Active Optical Clock Scheme","authors":"Haosen Shang, D. Pan, Xiaopeng Xie, Tiantian Shi, Jingbiao Chen","doi":"10.1109/IFCS-ISAF41089.2020.9234940","DOIUrl":"https://doi.org/10.1109/IFCS-ISAF41089.2020.9234940","url":null,"abstract":"In this paper, we propose a chip-scale cesium four-level active optical clock based on a microfabricated atomic vapor cell. This millimeter-scale vapor cell is coated on both ends of the wall, and the coated walls directly construct the optical resonator. The microfabricated atomic vapor cell is also used to stabilize the frequency of the pump laser, to further reduce the influence of light shift caused by the frequency-stabilized pump laser on the linewidth of active optical frequency standard signal. We make a theoretical analysis and design an experimental scheme. The chip-scale active optical clock with small size and high performance has wide application in precision measurement and detection, and other fields, and it will aid to promote the definition of time unit second based on the optical clock.","PeriodicalId":6872,"journal":{"name":"2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)","volume":"10 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89705866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Ultrastable Long-haul Fibre-optic Radio Frequency Transfer Based on PLL Frequency Mixing 基于锁相环混频的超稳定长距离光纤射频传输
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI: 10.1109/IFCS-ISAF41089.2020.9234877
Chenxia Liu, Shujin Zhou, Zhuoze Zhao, Hao Gao, Jianming Shang, Xing Chen, Bin Luo, Song Yu
{"title":"Ultrastable Long-haul Fibre-optic Radio Frequency Transfer Based on PLL Frequency Mixing","authors":"Chenxia Liu, Shujin Zhou, Zhuoze Zhao, Hao Gao, Jianming Shang, Xing Chen, Bin Luo, Song Yu","doi":"10.1109/IFCS-ISAF41089.2020.9234877","DOIUrl":"https://doi.org/10.1109/IFCS-ISAF41089.2020.9234877","url":null,"abstract":"This paper presents the system for ultrastable radio frequency (RF) transfer over long-haul optical fiber link without any relay system. Signal to noise ratio of the phase conjugate signal is improved by 20 dB(@RBW 2 MHz) via utilising phase locked loop during the frequency mixing process. The experiments are performed over 1007 km fiber link, detailed information of which is given in this paper. The measured fractional frequency stability of 2.4 GHz RF signal transmission system approaches $8.20times 10^{-14} @1 mathrm{s}$ and $7.87times 10^{-17} @10000 mathrm{s}$.","PeriodicalId":6872,"journal":{"name":"2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)","volume":"9 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85929150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
High Coupling Coefficient Resonance Mode in Al0.68Sc0.32N Surface Acoustic Wave Resonator with AlN Buffer Layer on a Silicon Substrate 硅衬底AlN缓冲层Al0.68Sc0.32N表面声波谐振器的高耦合系数谐振模式
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI: 10.1109/IFCS-ISAF41089.2020.9234828
Zichen Tang, Michael D’Agati, R. Olsson
{"title":"High Coupling Coefficient Resonance Mode in Al0.68Sc0.32N Surface Acoustic Wave Resonator with AlN Buffer Layer on a Silicon Substrate","authors":"Zichen Tang, Michael D’Agati, R. Olsson","doi":"10.1109/IFCS-ISAF41089.2020.9234828","DOIUrl":"https://doi.org/10.1109/IFCS-ISAF41089.2020.9234828","url":null,"abstract":"We report on a resonance mode with high electro-mechanical coupling coefficient (kt 2) in an Aluminum Scandium Nitride (AlScN) Surface Acoustic Wave (SAW) resonator with an Aluminum Nitride (AlN) buffer layer on a silicon substrate. We demonstrate the influence of electrode material, electrode thickness, AlScN thickness, and device orientation on the kt 2. We utilize the optimized parameters from this study to realize SAW devices in a CMOS compatible fabrication process and measured a kt 2 as high as 4.78%, which is a high value for AlScN SAW devices reported on low cost single crystal silicon substrates.","PeriodicalId":6872,"journal":{"name":"2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)","volume":"61 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90996525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Wireless Passive Time-of-Flight Respiratory MEMS Flow Rate Sensor 无线无源飞行时间呼吸MEMS流量传感器
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI: 10.1109/IFCS-ISAF41089.2020.9234904
Sina Moradian, Parvin Akhkandi, Hedy Fatemi, R. Abdolvand
{"title":"Wireless Passive Time-of-Flight Respiratory MEMS Flow Rate Sensor","authors":"Sina Moradian, Parvin Akhkandi, Hedy Fatemi, R. Abdolvand","doi":"10.1109/IFCS-ISAF41089.2020.9234904","DOIUrl":"https://doi.org/10.1109/IFCS-ISAF41089.2020.9234904","url":null,"abstract":"Here we present the first instance of passive wireless MEMS flow rate sensor designed to measure respiratory flow rate and profile using the time-of-flight sensing modality without the need for battery or on-sensor circuits. With a footprint of only 7.2cm2, the sensor can measure human respiratory rate and flow when placed close to the nasal airway using an excitation antenna that transmits an average power of ∼5mW at a ∼75cm distance. To facilitate the time-of-flight sensor, two low loss, high quality factor TPoS MEMS resonators are placed ∼1cm apart and are connected to a small (3.8cm2) planar ground antenna. We were able to measure flow rate and respiration profile of human subject from a distance of 20cm from the base transceiver. In addition to flow rate, we were capable of accurately tracking the respiration profile of the patient and successfully detecting short cessation of breathing events commonly used in diagnosing sleep apnea.","PeriodicalId":6872,"journal":{"name":"2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)","volume":"183 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85630680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
11 GHz Lateral-Field-Excited Aluminum Nitride Cross-Sectional Lamé Mode Resonator 11ghz横向场激发氮化铝横截面lam<s:1>模谐振器
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI: 10.1109/IFCS-ISAF41089.2020.9234874
Meruyert Assylbekova, Guofeng Chen, Giuseppe Michetti, Michele Pirro, L. Colombo, M. Rinaldi
{"title":"11 GHz Lateral-Field-Excited Aluminum Nitride Cross-Sectional Lamé Mode Resonator","authors":"Meruyert Assylbekova, Guofeng Chen, Giuseppe Michetti, Michele Pirro, L. Colombo, M. Rinaldi","doi":"10.1109/IFCS-ISAF41089.2020.9234874","DOIUrl":"https://doi.org/10.1109/IFCS-ISAF41089.2020.9234874","url":null,"abstract":"This paper reports the first experimental demonstration of a Lateral-Field-Excited (LFE) Aluminum Nitride (AlN) Cross-Sectional Lamé Mode Resonator (CLMR) operating at 11 GHz. First, the device is modeled via Finite Element Analysis (FEA). Next, optimized design is realized via a simple 2-mask fabrication process. Fabricated LFE AlN CLMR demonstrates a loaded quality factor ($Q_{l}$) of 615 and an electromechanical coupling coefficient ($k_{t}^{2}$) of 1.3%, resulting in an exceptionally high Figure-of-Merit ($text{FoM}=k_{t}^{2}cdot Q_{l}$) of 8. In addition, the capability to litographycally define the center frequency without significantly degrading its $k_{t}^{2}$ makes LFE ALN CLMRs one of the best candidates for the realization of low-cost yet high-performance filters scaled to operate in the X-band.","PeriodicalId":6872,"journal":{"name":"2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)","volume":"12 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82144649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Characterization of GPS Disciplined Oscillators Using a Laboratory GNSS Simulation Testbed 利用实验室GNSS仿真试验台对GPS训练振荡器进行表征
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI: 10.1109/IFCS-ISAF41089.2020.9234932
Julia Bauer, Carsten Andrich, Alexander Ihlow, Niklas Beuster, G. del Galdo
{"title":"Characterization of GPS Disciplined Oscillators Using a Laboratory GNSS Simulation Testbed","authors":"Julia Bauer, Carsten Andrich, Alexander Ihlow, Niklas Beuster, G. del Galdo","doi":"10.1109/IFCS-ISAF41089.2020.9234932","DOIUrl":"https://doi.org/10.1109/IFCS-ISAF41089.2020.9234932","url":null,"abstract":"This paper introduces a testbed to characterize the performance of GPS disciplined oscillators using a GNSS signal simulator and a measurement system based on software-defined radios and digital signal processing that allows to examine the stability of up to four devices with sub-nanosecond precision, time-coherently for 1 PPS and 10 MHz signals, in a controllable laboratory environment with reproducible and adjustable GNSS signal settings over a long-term observation period. To demonstrate the effectiveness of this method, four devices of one specific low-cost GPSDO type available to the authors are characterized and compared in terms of their positional accuracy and their time and frequency stability in steady state and during stabilization.","PeriodicalId":6872,"journal":{"name":"2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)","volume":"8 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79794394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Frequency and Acoustic Performance Tunability for a SiN-AlScN Based PMUT Device 基于SiN-AlScN的PMUT器件的频率和声学性能可调性
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI: 10.1109/IFCS-ISAF41089.2020.9234917
Shomnath-Bhowmick, E. Marigó, M. Soundara-Pandian
{"title":"Frequency and Acoustic Performance Tunability for a SiN-AlScN Based PMUT Device","authors":"Shomnath-Bhowmick, E. Marigó, M. Soundara-Pandian","doi":"10.1109/IFCS-ISAF41089.2020.9234917","DOIUrl":"https://doi.org/10.1109/IFCS-ISAF41089.2020.9234917","url":null,"abstract":"This paper presents a wide frequency range and acoustic performance tunability for a Piezoelectric Micromachined Ultrasonic transducer (PMUT) device. Aluminium Scandium Nitride (AlScN) sandwiched between Aluminium (Al) electrodes is used for the piezoelectric actuation. Thin-film Silicon-Nitride (SiN) acts as an elastic layer to tune the frequency and optimize the acoustic performance of the PMUT devices. The devices are fabricated using a CMOS compatible monolithic technique. We simulated the acoustic performance of the device in a water-coupled medium and demonstrated for a cavity size of $80mumathrm{m}$ the frequencies could be tuned within the range of 3.6MHz to 5.4MHz with a transmitting sensitivity ranging from 5.8 kPa/V to 7.8 kPa/V respectively.","PeriodicalId":6872,"journal":{"name":"2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)","volume":"55 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79081247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Precise Time and Data Transfer Test Facility Using Optical Fiber Links in S-band and C-band 使用s波段和c波段光纤链路的精确时间和数据传输测试装置
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI: 10.1109/IFCS-ISAF41089.2020.9234893
Sarbojeet Bhowmick, J. Vojtěch, R. Velc, Martin Šlapák, L. Altmannova, V. Smotlacha
{"title":"Precise Time and Data Transfer Test Facility Using Optical Fiber Links in S-band and C-band","authors":"Sarbojeet Bhowmick, J. Vojtěch, R. Velc, Martin Šlapák, L. Altmannova, V. Smotlacha","doi":"10.1109/IFCS-ISAF41089.2020.9234893","DOIUrl":"https://doi.org/10.1109/IFCS-ISAF41089.2020.9234893","url":null,"abstract":"We perform the results implemented via time and data transfer using single-mode optical fiber. We use White Rabbit device which is an implementation of Precision Time Protocol (PTP) intended for the synchronization with sub-nanosecond precision. Our work briefs with the implementation of time transfer both in S-band and C-band. The work more focus on every timing system needs a primary time source which serves as a reference for all the nodes. In most sources the reference clock must fulfill rigorous requirements for the long-term stability. In this work atomic clock has been chosen as primary clock source.","PeriodicalId":6872,"journal":{"name":"2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)","volume":"43 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75350681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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