Characterization of an external cavity diode laser based ring cavity NICE-OHMS system

被引：23

作者：

Bell, C. L. ^{[1
]}

Hancock, G. ^{[1
]}

Peverall, R. ^{[1
]}

Ritchie, G. A. D. ^{[1
]}

van Helden, J. H. ^{[1
]}

van Leeuwen, N. J. ^{[1
]}

机构：

[1] Univ Oxford, Dept Chem, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

HETERODYNE MOLECULAR SPECTROMETRY; FREQUENCY-MODULATION SPECTROSCOPY; ULTRAWEAK TRANSITIONS; STABILIZATION; C2H2;

D O I：

10.1364/OE.17.009834

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The performance of an external cavity diode laser based noise immune cavity enhanced optical heterodyne molecular spectrometer is presented. To reduce the noise on the signal a ring cavity and a circuit to remove residual amplitude modulation on the pre-cavity laser radiation was implemented. We demonstrate a sensitivity of 4 x 10(-11) cm(-1) Hz(-1/2) using a cavity with a finesse of 2600 on a Doppler-broadened transition of CH4 at 6610.063 cm(-1). (C) 2009 Optical Society of America

引用

页码：9834 / 9839

页数：6

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