CIPM MRA COMPARISON REPORTS
SUPPLEMENTARY COMPARISON
APMP.PR-S8
Optical fibre length
Published on 20/02/2026 - © 2026 S.D. Lim et al
Citation S.D. Lim et al 2026 CIPM MRA Comparison reports 02001
Authors
Sun Do Lim Korea Research Institute of Standards and Science (KRISS) Korea, Republic of 
Ki-Suk Hong Korea Research Institute of Standards and Science (KRISS) Korea, Republic of
Jing Zhang National Metrology Centre, Agency for Science, Technology and Research (NMC, A*STAR) Singapore
Kuniaki Amemiya National Metrology Institute of Japan (NMIJ AIST) Japan
Jimmy Durbard Laboratoire national de métrologie et d'essais (LNE) France
Mariesa Nel National Metrology Institute of South Africa (NMISA) South Africa
Pritesh Jivan National Metrology Institute of South Africa (NMISA) South Africa
Jacques Morel Federal Institute of Metrology (METAS) Switzerland
Vladimir Kravtsov All-Russian Scientific Institute for Optical and Physical Measurements, Rosstandart (VNIIOFI) Russian Federation
Osama Terra National Institute for Standards (NIS) Egypt
Zeus Ruiz Centro Nacional de Metrologia (CENAM) Mexico
Abstract
KRISS, NMC, NMIJ, LNE, NMISA, METAS, VNIIOFI, NIS, and CENAM conducted a supplementary comparison on optical fiber length at 1310 nm, 1550 nm, and 1625 nm. The aim of this comparison is to examine the equivalence of the optical fiber length among participating laboratories and to provide supporting evidence for associated CMC claims in BIPM KCDB.
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 CCPR, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).