The CCL-K11 ongoing key comparison. Final report for the year 2011

Michael Matus, M del Mar Pérez, Slobodan Zelenika, Aidar Dauletbayev, Chingis Kuanbayev, Hatem Hussein, L. Robertsson

2012

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DOI 10.1088/0026-1394/49/1a/04009
Data confidence 70 medium
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Abstract

Lasers from four national metrological institutes (NMIs) were compared 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 the f component of the R(127) 11-5 transition of molecular iodine was measured for these lasers following the technical protocol for CCL-K11. The results of these measurements are compiled in the present report. The comparison reports, as communicated by each participant, are included as appendices. This document constitutes the third final report for the ongoing key comparison CCL-K11. Main text. 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 kcdb.bipm.org/ . 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).