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10−12 level reproducibility of an iodine-stabilized He–Ne laser endorsed by absolute frequency measurements in the BIPM and UME

Ramiz Hamid et al 2006 Metrologia 43 106-108   doi: 10.1088/0026-1394/43/1/015  Help

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Ramiz Hamid1, Ersoy Sahin1, Mehmet Celik1, Gönül Özen2, Massimo Zucco3,4, Lennart Robertsson3 and Long Sheng Ma3
1 TÜBITAK, Ulusal Metroloji Enstitüsü (UME), PO 54, 41470, Gebze-Kocaeli, Turkey
2 Istanbul Technical University (ITU), Maslak, 34469 Istanbul, Turkey
3 Bureau International des Poids et Mesures (BIPM), Pavillon de Breteuil, F-92312 Sèvres Cedex, France
4 On leave from CNR–Istituto di Metrologia 'G Colonnetti', Strada delle Cacce 73, 10135 Torino, Italy.

Abstract. The absolute frequency of the f-component for the UME laser was measured with the BIPM femtosecond laser comb to be (473 612 353 602.0 ± 1.1) kHz during 3 March to 8 March, 2003 and with the UME comb to be (473 612 353 600.6 ± 1.1) kHz from 20 June to 25 June, 2005. After appropriate correction for power and modulation shifts a subkilohertz agreement between the two measurements was found. Moreover, the relative frequency stability for different UME–BIPM laser pairs is investigated using standard heterodyne techniques and Allan variance statistics.

Print publication: Issue 1 (February 2006)
Received 7 September 2005
Published 7 December 2005

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