The CCL-K11 ongoing key comparison. Final report for 2023

IF 2.1 3区工程技术 Q2 INSTRUMENTS & INSTRUMENTATION

Metrologia Pub Date : 2024-05-12 DOI:10.1088/0026-1394/61/1a/04002

M Matus, H S Margolis, J Seppä, H Karlsson, C-H Hanquist, A J Lancaster, A J Lewis, M Brawer, M del Mar Pérez, M Bisi, J Hald and G Zechner

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引用次数: 0

Abstract

Six lasers from six national metrological institutes (NMIs) were compared in the year 2023 as part of the CCL-K11 ongoing key comparison, initiated by the 13th meeting of the Comité Consultative des Longueurs (CCL) in 2007. The absolute frequency of theses lasers was measured in three different node laboratories following the technical protocol for CCL-K11. All are practical realisations of the definition of the metre according to the MeP for the definition of the metre. Five standards are He-Ne-lasers stabilized on the f component of the R(127) 11-5 transitions of molecular iodine 127I2 with a wavelength of approximately 633 nm. The sixth standard is a fibre laser stabilized to the P(16) (ν1+ν3) transition of molecular acetylene 13C2H2 with a wavelength of approximately 1542 nm. The technical protocol was deliberately designed to accommodate artefacts of different wavelengths in a common framework. The results of these measurements are compiled in the present report. The comparison reports, as communicated by each participant, are included in the main document. This document constitutes the thirteenth final report for the ongoing key comparison CCL-K11. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/. The final report has been peer-reviewed and approved for publication by the CCL, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

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CCL-K11 进行中的关键比较。2023 年最终报告

由六个国家计量机构（NMIs）的六台激光器在 2023 年进行了比较，这是 CCL-K11 正在进行的关键比较的一部分。按照 CCL-K11 的技术协议，在三个不同的节点实验室测量了这些激光器的绝对频率。所有这些都是根据米的定义标准（MeP）对米的定义的实际应用。五个标准是稳定在波长约为 633 nm 的分子碘 127I2 的 R(127) 11-5 转变的 f 分量上的氦氖激光器。第六个标准是稳定在分子乙炔 13C2H2 的 P(16) (ν1+ν3) 转变上的光纤激光器，波长约为 1542 纳米。技术协议的设计是有意在一个共同的框架内容纳不同波长的伪影。本报告汇编了这些测量结果。各参与方提交的对比报告载于主文件。本文件是正在进行的关键比对 CCL-K11 的第 13 份最终报告。要阅读本文正文，请点击最终报告。请注意，本报告正文是 BIPM 关键比对数据库 https://www.bipm.org/kcdb/ 附录 B 中的内容。根据 CIPM 互认安排 (CIPM MRA) 的规定，最终报告已由 CCL 进行同行评审并批准出版。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Metrologia 工程技术-物理：应用

CiteScore

2.80

自引率

25.00%

发文量

137

审稿时长

12 months

期刊介绍： Published 6 times per year, Metrologia covers the fundamentals of measurements, particularly those dealing with the seven base units of the International System of Units (metre, kilogram, second, ampere, kelvin, candela, mole) or proposals to replace them. The journal also publishes papers that contribute to the solution of difficult measurement problems and improve the accuracy of derived units and constants that are of fundamental importance to physics. In addition to regular papers, the journal publishes review articles, issues devoted to single topics of timely interest and occasional conference proceedings. Letters to the Editor and Short Communications (generally three pages or less) are also considered.