A versatile digital GHz phase lock for external cavity diode lasers

被引：69
|
作者：
Appel, Jurgen [1 ]
MacRae, Andrew [2 ]
Lvovsky, A. I. [2 ]
机构：
[1] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark
[2] Univ Calgary, Inst Quantum Informat Sci, Calgary, AB T2N 1N4, Canada
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2009年 / 20卷 / 05期
关键词：
laser; frequency stabilization; phase lock; GHz;
D O I：
10.1088/0957-0233/20/5/055302
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a versatile, inexpensive and simple optical phase lock for applications in atomic physics experiments. Thanks to all-digital phase detection and implementation of beat frequency pre-scaling, the apparatus requires no microwave-range reference input and permits phase locking at frequency differences ranging from sub-MHz to 7 GHz (and with minor extension to 12 GHz). The locking range thus covers ground-state hyperfine splittings of all alkali metals, which makes this system a universal tool for many experiments on coherent interaction between light and atoms.
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页数：5
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