高速通道交错光子模数转换器中时钟偏斜抗扰度的光学采样保持。

IF 3.3 2区 物理与天体物理 Q2 OPTICS
Optics express Pub Date : 2025-09-08 DOI:10.1364/OE.571841
Ruiheng Qin, Le Zhang, Xinpei Chen, Jiaxing Wu, Na Qian, Weiwen Zou
{"title":"高速通道交错光子模数转换器中时钟偏斜抗扰度的光学采样保持。","authors":"Ruiheng Qin, Le Zhang, Xinpei Chen, Jiaxing Wu, Na Qian, Weiwen Zou","doi":"10.1364/OE.571841","DOIUrl":null,"url":null,"abstract":"<p><p>Precise clock synchronization dramatically increases the difficulty of designing large-scale and high-resolution channel-interleaved photonic analog-to-digital converters (PADCs). This paper presents what we believe to be a novel all-optical sample-and-hold method based on vector superposition. Closed-form equations are analyzed and derived to characterize the impact of various system parameters, including input frequency, bandwidth, and clock skew. To enable the optical sampling front end function as an optical sample-and-hold (S&H) circuit, sub-optical pulses with additional wavelengths are incorporated for the simultaneous acquisition of input signals. By precisely delaying and coherently coupling identical sampled information carried by these sub-optical pulses, discrete sampling points are effectively converted into continuous intervals, thereby significantly mitigating temporal errors caused by inter-channel clock skew and timing mismatches. The proposed method features the advantages of low complexity, low power consumption, and the ability to function over a wide frequency range. In the experiment, the proposed signal-holding mechanism inherently suppresses multi-channel temporal mismatches without sophisticated calibrations. The measurements of the configured channel-interleaved PADC demonstrate clock skew immunity within a ± 0.1 sampling period range while maintaining a spurious-free dynamic range (SFDR) above 60 dB.</p>","PeriodicalId":19691,"journal":{"name":"Optics express","volume":"33 18","pages":"38814-38827"},"PeriodicalIF":3.3000,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optical sample-and-hold for clock skew immunity in high-speed channel-interleaved photonic analog-to-digital converters.\",\"authors\":\"Ruiheng Qin, Le Zhang, Xinpei Chen, Jiaxing Wu, Na Qian, Weiwen Zou\",\"doi\":\"10.1364/OE.571841\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Precise clock synchronization dramatically increases the difficulty of designing large-scale and high-resolution channel-interleaved photonic analog-to-digital converters (PADCs). This paper presents what we believe to be a novel all-optical sample-and-hold method based on vector superposition. Closed-form equations are analyzed and derived to characterize the impact of various system parameters, including input frequency, bandwidth, and clock skew. To enable the optical sampling front end function as an optical sample-and-hold (S&H) circuit, sub-optical pulses with additional wavelengths are incorporated for the simultaneous acquisition of input signals. By precisely delaying and coherently coupling identical sampled information carried by these sub-optical pulses, discrete sampling points are effectively converted into continuous intervals, thereby significantly mitigating temporal errors caused by inter-channel clock skew and timing mismatches. The proposed method features the advantages of low complexity, low power consumption, and the ability to function over a wide frequency range. In the experiment, the proposed signal-holding mechanism inherently suppresses multi-channel temporal mismatches without sophisticated calibrations. The measurements of the configured channel-interleaved PADC demonstrate clock skew immunity within a ± 0.1 sampling period range while maintaining a spurious-free dynamic range (SFDR) above 60 dB.</p>\",\"PeriodicalId\":19691,\"journal\":{\"name\":\"Optics express\",\"volume\":\"33 18\",\"pages\":\"38814-38827\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2025-09-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optics express\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1364/OE.571841\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics express","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OE.571841","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0

摘要

精确的时钟同步极大地增加了设计大规模高分辨率通道交错光子模数转换器(padc)的难度。本文提出了一种基于矢量叠加的全光采样保持方法。分析并推导了闭式方程,以表征各种系统参数的影响,包括输入频率、带宽和时钟偏差。为了使光学采样前端能够作为光学采样和保持(S&H)电路,采用具有附加波长的亚光脉冲来同时采集输入信号。通过精确地延迟和相干耦合这些亚光脉冲携带的相同采样信息,将离散采样点有效地转换为连续采样点,从而显著减轻信道间时钟倾斜和时序不匹配引起的时间误差。该方法具有复杂度低、功耗低、工作频率宽等优点。在实验中,所提出的信号保持机制内在地抑制了多通道时间不匹配,而无需复杂的校准。所配置的通道交错PADC的测量结果表明,在±0.1采样周期范围内,时钟偏差抗扰性良好,同时保持60 dB以上的无杂散动态范围(SFDR)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optical sample-and-hold for clock skew immunity in high-speed channel-interleaved photonic analog-to-digital converters.

Precise clock synchronization dramatically increases the difficulty of designing large-scale and high-resolution channel-interleaved photonic analog-to-digital converters (PADCs). This paper presents what we believe to be a novel all-optical sample-and-hold method based on vector superposition. Closed-form equations are analyzed and derived to characterize the impact of various system parameters, including input frequency, bandwidth, and clock skew. To enable the optical sampling front end function as an optical sample-and-hold (S&H) circuit, sub-optical pulses with additional wavelengths are incorporated for the simultaneous acquisition of input signals. By precisely delaying and coherently coupling identical sampled information carried by these sub-optical pulses, discrete sampling points are effectively converted into continuous intervals, thereby significantly mitigating temporal errors caused by inter-channel clock skew and timing mismatches. The proposed method features the advantages of low complexity, low power consumption, and the ability to function over a wide frequency range. In the experiment, the proposed signal-holding mechanism inherently suppresses multi-channel temporal mismatches without sophisticated calibrations. The measurements of the configured channel-interleaved PADC demonstrate clock skew immunity within a ± 0.1 sampling period range while maintaining a spurious-free dynamic range (SFDR) above 60 dB.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Optics express
Optics express 物理-光学
CiteScore
6.60
自引率
15.80%
发文量
5182
审稿时长
2.1 months
期刊介绍: Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信