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A transportable optical frequency comb based on a mode-locked fibre laser.

Walton, B R; Margolis, H S; Tsatourian, V; Gill, P (2007) A transportable optical frequency comb based on a mode-locked fibre laser. In: OFMC 2007, 15-17 October 2007, NPL, UK.

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A new transportable frequency comb has been developed at the National Physical Laboratory. The transportable frequency comb is based around a MenloSystems FC1500 Optical Frequency Synthesizer, which is capable of measuring any frequency between 0.5 and 2.1 mm. Measurements made by the comb are referenced to the SI second via a GPS-disciplined Rapco 2804AR rubidium oscillator. All components of the system are mounted on a mobile aluminium frame. This paper describes measurements of a high-stability narrow-band optical source using this system, with either the GPS-disciplined oscillator or a hydrogen maser as a reference. Some of these measurements were made simultaneously with a hydrogen maser-referenced Ti:Sapphire-based comb. It was found that the GPS-referenced transportable comb had an accuracy of approximately 9.0 ´ 10-13 when compared to the maser-referenced Ti:Sapphire comb, and a stability of 1.0 ´ 10-12 at 10 seconds.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Keywords: Frequency comb, optical frequency metrology, erbium doped fibre laser, transportable comb
Subjects: Time and Frequency
Time and Frequency > Optical Frequency Standards and Metrology
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/3972

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