A 23.75-GHz frequency comb with two low-finesse filtering cavities in series for high resolution spectroscopy

作     者：侯磊 韩海年 王薇 张龙 庞利辉 李德华 魏志义 Hou Lei;Han Hai-Nian;Wang Wei;Zhang Long;Pang Li-Hui;Li De-Hua;Wei Zhi-Yi

作者机构：Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of Sciences Department of PhysicsCapital Normal University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2015年第24卷第2期

页      面：202-206页

核心收录：

学科分类：08[工学] 0803[工学-光学工程] 

基　　金：supported by the National Basic Research Program of China(Grant No.2012CB821304) the National Natural Science Foundation of China(Grant Nos.11078022 and 61378040) 

主　　题：laser frequency comb Fabry-P6rot cavity high repetition rate high resolution spectroscopy 

摘      要：A laser frequency comb with several tens GHz level is demonstrated,based on a Yb-doped femtosecond fiber laser and two low-finesse Fabry-Perot cavities（FPCs） in *** original 250-MHz mode-line-spacing of the source comb is filtered to 4.75 GHz and 23.75 GHz,*** to the multi-beam interferences theory of FPC,the side-mode suppression rate of FPC schemes is in good agreement with our own theoretical results from 27 dB of a single FPC to43 dB of paired *** maintain long-term stable operation and determine the absolute frequency mode number in the23.75-GHz comb,the Pound-Drever-Hall（PDH） locking technology is *** stable tens GHz frequency combs have important applications in calibrating astronomical spectrographs with high resolution.