A low maintenance Sr optical lattice clock

被引：28

作者：

Hill, I. R. ^{[1
]}

Hobson, R. ^{[1
,2
]}

Bowden, W. ^{[1
,2
]}

Bridge, E. M. ^{[1
,2
]}

Donnellan, S. ^{[1
]}

Curtis, E. A. ^{[1
]}

Gill, P. ^{[1
]}

机构：

[1] Natl Phys Lab, Hampton Rd, Teddington TW11 0LW, Middx, England

[2] Univ Oxford, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England

来源：

8TH SYMPOSIUM ON FREQUENCY STANDARDS AND METROLOGY 2015 | 2016年 / 723卷

关键词：

FREQUENCY; SPECTROSCOPY; STRONTIUM; ATOMS;

D O I：

10.1088/1742-6596/723/1/012019

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe the Sr optical lattice clock apparatus at NPL with particular emphasis on techniques used to increase reliability and minimise the human requirement in its operation. Central to this is a clock-referenced transfer cavity scheme for the stabilisation of cooling and trapping lasers. We highlight several measures to increase the reliability of the clock with a view towards the realisation of an optical time-scale. The clock contributed 502 hours of data over a 25 day period (84% uptime) in a recent measurement campaign with several uninterrupted periods of more than 48 hours. An instability of 2 x 10(-17) was reached after 10(5) s of averaging in an interleaved self-comparison of the clock.

引用

页数：8

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