期刊
OPTICS EXPRESS
卷 25, 期 21, 页码 26020-26028出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.25.026020
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- Exploratory Research for Advanced Technology (ERATO), Japan
- Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
- New Energy and Industry Technology Development Organization (NEDO), Japan
We describe a CW laser stabilized to a low thermal expansion ceramic cavity which has a lower frequency drift rate than cavities based on ultralow-expansion glass (ULE), which are widely used as optical references. Two identical optical cavities with spacers of different material, ceramic and ULE, were assembled and the optical frequencies locked to each of these cavities were compared. The optical frequency drifts of both CW lasers were measured to within a precision of 10(-11) in one second over the course of one year. The ceramic cavity had a long-term frequency drift rate of 4.9 mHz/s and the ULE cavity had one of 23 mHz/s. (C) 2017 Optical Society of America
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