A compact, sub-Hertz linewidth 729 nm laser for a miniaturized 40Ca+ optical clock
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- 作者：Junjuan Shanga ; b ; c ; Jian Caoa ; b ; caojian@wipm.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Kaifeng Cuia ; b ; c ; Shaomao Wanga ; b ; c ; Ping Zhanga ; b ; c ; Jinbo Yuana ; b ; c ; Sijia Chaoa ; b ; c ; Hualin Shua ; b ; Xueren Huanga ; b ; hxueren@wipm.ac.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Compact ; Sub-Hertz linewidth ; Frequency instability ; Optical clock
- 刊名：Optics Communications
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：382
- 期：Complete
- 页码：410-414
- 全文大小：1380 K
文摘
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A compact, ultra-stable 729 nm laser system with a volume about 0.1 m3 is realized.
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The linewidth of the laser is about 0.9 Hz and instability is about 2E-15 at 1–100 s.
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2×10−15 This laser is used in a miniaturized 40Ca+ ion optical clock as a local oscillator.
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The instability of the optical clock is 3.4E−14/τ1/2 with a 729 nm probe time 20 ms.