Note: Laser frequency shifting by using two novel triple-pass acousto-optic modulator configurations

被引：4

作者：

de Carlos-Lopez, E. ^{[1
]}

Lopez, J. M. ^{[1
]}

Lopez, S. ^{[1
]}

Espinosa, M. G. ^{[1
]}

Lizama, L. A. ^{[1
]}

机构：

[1] Ctr Nacl Metrol, Div Tiempo & Frecuencia, El Marques 76246, Queretaro, Mexico

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2012年 / 83卷 / 11期

关键词：

STANDARD;

D O I：

10.1063/1.4758998

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report the design of two novel triple-pass acousto-optic modulator systems. These designs are extensions of the well known acousto-optic modulator (AOM) double-pass configuration, which eliminates the angle dependence of the diffracted beam with respect to the modulation frequency. In a triple-pass system, however, the frequency dependence of the angle does not disappear but the frequency shift is larger, spanning 3 times the AOM central frequency. In some applications, such as optically pumped Cesium-beam frequency standards, the frequencies of the two laser beams remain fixed and a triple-pass optical system can be used to reduce to one the number of lasers used in such atomic clocks. The two triple-pass configurations use either a retro-reflecting mirror, or a right angle prism to pass for third time the laser beam through the AOM, obtaining diffraction efficiencies of about 27% and 44%, respectively. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4758998]

引用

页数：3

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