期刊
APPLIED PHYSICS LETTERS
卷 102, 期 23, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4809736
关键词
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资金
- National Basic Research Program of China [2010CB922903, 2012CB821302]
- National Natural Science Foundation of China [11104077, 11127405]
We demonstrate a narrow-linewidth optical frequency comb based on a femtosecond Ti:sapphire laser by precisely phase-locking it to a subhertz-linewidth Nd:YAG laser at 1064 nm. Each comb tooth inherits the phase coherence and frequency stability of the subhertz-linewidth laser. By comparing against other independent narrow-linewidth lasers, we measured the absolute linewidth of the comb teeth to be 0.6 Hz-1.2Hz over an octave spectrum. (C) 2013 AIP Publishing LLC.
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