A diode laser spectrometer at 634nm and absolute frequency measurements using optical frequency comb |
| |
| Authors: | Yi Lin Yuan Jie Qi Xiang-Hui Chen Wen-Lan Zhou Da-Wei Zhou Tong Zhou Xiao-Ji Chen Xu-Zong |
| |
| Affiliation: | School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China |
| |
| Abstract: | This paper reports that two identical external-cavity-diode-laser(ECDL) based spectrometers are constructed at 634 nm referencing onthe hyperfine B-X transition R(80)8-4 of 127I2. The lasersare stabilized on the Doppler-free absorption signals using thethird-harmonic detection technique. The instability of thestabilized laser is measured to be 2.8×10^{-12} (after1000 s) by counting the beat note between the two lasers. Theabsolute optical frequency of the transition is, for the first time,determined to be 472851936189.5 kHz by using an optical frequencycomb referenced on the microwave caesium atomic clock. Theuncertainty of the measurement is less than 4.9 kHz. |
| |
| Keywords: | frequency standard opticalfrequency comb absolute frequency measurement atomic clock |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
