IMPROVED SENSITIVITY OF TUNABLE-DIODE-LASER OPEN-PATH TRACE GAS MONITORING SYSTEMS

被引:19
作者
ENG, RS
MANTZ, AW
TODD, TR
机构
[1] Laser Analytics Inc., Bedford, MA
来源
APPLIED OPTICS | 1979年 / 18卷 / 20期
关键词
D O I
10.1364/AO.18.003438
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The detection sensitivity of a long-path atmospheric pollutant monitor using tunable diode lasers has been greatly improved to about 0.1%.These improvements directly result from measurements made on the low frequency noise characteristics of several diode lasers and the temporal spectrum of atmospheric turbulence.Optimum modulation frequencies are given, and an improved optical design is recommended.© 1979 Optical Society of America.
引用
收藏
页码:3438 / 3442
页数:5
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