Observation of a Sub-10-Hz linewidth 88Sr+ 2S1/2-2D5/2 clock transition at 674 nm

被引：17

作者：

Barwood, Geoffrey P. ^{[1
]}

Gill, Patrick

Huang, Guilong

Klein, Hugh A.

机构：

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

[2] Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2007年 / 56卷 / 02期

关键词：

atomic clocks; laser stability; semiconductor lasers;

D O I：

10.1109/TIM.2007.891142

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a pair of diode lasers at 674 nm, locked to two independent ultralow-expansion high-finesse cavities, have been characterized by monitoring the beat frequency between them. The individual laser linewidth of 1.4 Hz for a 3-s averaging time broadened to 4 Hz at 30 s. The relative frequency stability of the beat at 1 s is 2.5 x 10(-15). One of the lasers has been used to interrogate the Sr-88(+) S-2(1/2)-D-2(5/2) transition at 674 mn, and a transition linewidth of 9 Hz has been observed.

引用

页码：226 / 229

页数：4