OPTICAL HETERODYNE SPECTROSCOPY ENHANCED BY AN EXTERNAL OPTICAL CAVITY - TOWARD IMPROVED WORKING STANDARDS

被引：63
作者：
MA, LS
HALL, JL
机构：
[1] NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,DIV QUANTUM PHYS,BOULER,CO 80309
[2] UNIV COLORADO,BOULDER,CO 80309
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 1990年 / 26卷 / 11期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1109/3.62120
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We study the use of an external resonator to enhance sub-Doppler signals observable with the high sensitivity techniques of optical heterodyne spectroscopy. The case of modulation-transfer spectroscopy in a ring resonator is considered in detail. By exciting the I-127(2) resonance at 612 nm with a low-power He-Ne laser, we observed a S/N of 250:1 in a 10 kHz bandwidth. Used in an optimal control loop, this performance would provide a laser stability of 10 Hz at 1 s. Such a > hundredfold improvement in stability should lead to interesting increases in accuracy as well.
引用
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页码：2006 / 2012
页数：7
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