Tunable diode laser line width and tuning measurements for gas analysis monitoring

被引：6

作者：

Brunner, R

Tacke, M

机构：

[1] Fraunhofer Inst Phys Measurement Tech, D-79110 Freiburg, Germany

[2] Res Inst Optron & Pattern Recognit, D-76275 Ettlingen, Germany

来源：

INFRARED PHYSICS & TECHNOLOGY | 2002年 / 43卷 / 02期

关键词：

laser spectroscopy; tuning rate; laser line width; self-heterodyne;

D O I：

10.1016/S1350-4495(01)00125-6

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A technique for time resolved determination of tuning rate and line width is proposed which allows online system control for tunable diode laser spectroscopy, a proven tool for scientific gas analysis below part per billion concentrations. With this innovative feature, the laser systems have improved potential for industrial process control and may become a secondary standard for example for accurate partial pressure measurements by exact determination of a gas absorption profile, minimizing the need for calibration gases. The demonstrated technique makes use of delayed self-heterodyning. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：61 / 67

页数：7

共 16 条

[1]

BRASSINGTON DJ, 1995, SPECTROSCOPY ENV SCI, pCH3

[2]

BRUNNER R, 1996, SPIE, V2834

[3] QUANTUM PHASE NOISE AND FIELD CORRELATION IN SINGLE FREQUENCY SEMICONDUCTOR-LASER SYSTEMS [J].