Monitoring of molecular species using near-infrared extended cavity diode lasers

1997 Digest of the IEEE/LEOS Summer Topical Meeting: Vertical-Cavity Lasers/Technologies for a Global Information Infrastructure/WDM Components Technology/Advanced Semiconductor Lasers and Application Pub Date : 1997-08-11 DOI:10.1109/LEOSST.1997.619214

H. Simonsen, J. Henningsen, T. Møgelberg

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引用次数: 1

Abstract

Near infrared diode lasers are attractive for spectroscopic applications due to their good spectral purity and low amplitude noise. They operate at room temperature with single-mode output power of milliwatts, and are adapted to fibre optic technology. Wavelength tunability is achieved using an extended cavity configuration. We report on a system based on high resolution infrared spectrometry in the 1.5-1.6 /spl mu/m region where several gases have overtone or combination absorption bands. In monitoring applications toxic and flammable gases like CO and H/sub 2/S are of particular interest. CO detection is aimed at detecting fires with special reference to smouldering combustion within the insulating layers of equipment, whereas H/sub 2/S is a major health hazard on oil rigs producing sour oil.

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利用近红外扩展腔二极管激光器监测分子种类

近红外二极管激光器具有良好的光谱纯度和较低的振幅噪声，在光谱学应用中具有很大的吸引力。它们在室温下工作，单模输出功率为毫瓦，适用于光纤技术。波长可调性是通过扩展腔结构实现的。我们报道了一种基于高分辨率红外光谱的系统，在1.5-1.6 /spl mu/m区域，几种气体具有泛音或组合吸收带。在监测应用中，有毒和可燃气体，如CO和H/sub 2/S，特别令人感兴趣。CO探测的目的是探测火灾，特别是设备绝缘层内的闷烧燃烧，而H/sub 2/S是生产含硫油的石油钻井平台的主要健康危害。

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1997 Digest of the IEEE/LEOS Summer Topical Meeting: Vertical-Cavity Lasers/Technologies for a Global Information Infrastructure/WDM Components Technology/Advanced Semiconductor Lasers and Application

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