Generation of Continuous-Wave 194nm Laser for Mercury Ion Optical Frequency Standard

被引：9

作者：

Zou Hong-Xin ^{[1
]}

Wu Yue ^{[1
]}

Chen Guo-Zhu ^{[1
]}

Shen Yong ^{[1
]}

Liu Qu ^{[1
]}

机构：

[1] Natl Univ Def Technol, Dept Phys, Changsha 410073, Hunan, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2015年 / 32卷 / 05期

基金：

中国国家自然科学基金;

关键词：

LIGHT GENERATION; NM; BETA-BAB2O4; CAVITY; RADIATION; BEAMS;

D O I：

10.1088/0256-307X/32/5/054207

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A 194-nm cw laser is an essential part in the mercury ion optical frequency standard. We report the generation of over 2mW continuous-wave radiation at 194nm in a beta barium borate crystal using a simple sum frequency mixing (SFM) system. One source beams at 718nm is resonantly enhanced with a cavity and the other at 266nm makes a single pass. Considering the walk-off effect in SFM, the source beam waists are designed to be elliptical, thus the conversion efficiency can be promoted. The 266-nm beam produced by frequency doubling of 532-nm laser is shaped close to the diffraction limit to achieve better mode matching.

引用

页数：5

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