Ramiz Hamid et al 2006 Metrologia 43 106 doi:10.1088/0026-1394/43/1/015
Ramiz Hamid1, Ersoy Sahin1, Mehmet Celik1, Gönül Özen2, Massimo Zucco3,4, Lennart Robertsson3 and Long Sheng Ma3
Show affiliationsThe 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.
42.55.Lt Gas lasers including excimer and metal-vapor lasers
Issue 1 (February 2006)
Received 7 September 2005
Published 7 December 2005
Ramiz Hamid et al 2006 Metrologia 43 106