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Multigas detection using a sample-grating distributed Bragg reflector diode laser

机译:使用样品光栅分布式布拉格反射器二极管激光器进行多气体检测

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摘要

A sample-grating distributed Bragg reflector (SG-DBR) laser with 18 preprogrammed channels operating at 1540-1580 nm is characterized and compared for use as a source of tunable diode laser gas absorption spectroscopy. Two gases, CO and CO_2, were targeted in this study by direct absorption spectroscopy and wavelength modulation spectroscopy with second-harmonic detection. In addition, the detectability of sample optical thickness is reported. Potential extensions of this research in the future are assessed using the SG-DBR diode laser as a source for tunable diode laser gas absorption spectroscopy.
机译:对带有18个预编程通道且工作在1540-1580 nm的样品光栅分布式布拉格反射器(SG-DBR)激光器进行了表征,并进行了比较,以用作可调谐二极管激光气体吸收光谱仪。通过直接吸收光谱和带有二次谐波检测的波长调制光谱,将两种气体(CO和CO_2)作为目标。另外,报告了样品光学厚度的可检测性。使用SG-DBR二极管激光器作为可调谐二极管激光气体吸收光谱仪的来源,可以评估该研究在未来的潜在扩展。

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