Acetylene detection based on diode laser QEPAS: Combined wavelength and residual amplitude modulation

Y. Cao; W. Jin; H. L. Ho; L. Qi; Y. H. Yang

doi:10.1007/s00340-012-5221-4

Acetylene detection based on diode laser QEPAS: Combined wavelength and residual amplitude modulation

Y. Cao^*
, W. Jin
, H. L. Ho
, L. Qi
, Y. H. Yang

^*此作品的通讯作者

仪器科学与光电工程学院

Hong Kong Polytechnic University
Beihang University

科研成果: 期刊稿件 › 文章 › 同行评审

40 引用（Scopus）

摘要

Quartz-enhanced photoacoustic spectroscopy (QEPAS) is demonstrated for acetylene detection at atmospheric pressure and room temperature with a fiber-coupled distributed feedback (DFB) diode laser operating at ~1.53 μm. An efficient approach for gas concentration calibration is demonstrated. The effect of residual amplitude modulation on the performance of wavelength modulated QEPAS is investigated theoretically and experimentally. With optimized spectrophone parameters and modulation depth, a minimum detectable limit (1σ) of ~2 part-per-million volume (ppmv) was achieved with an 8.44-mW diode laser, which corresponds to a normalized noise equivalent coefficient (1σ) of 6.16 × 10^-8 cm^-1 W/Hz^1/2.

源语言	英语
页（从-至）	359-366
页数	8
期刊	Applied Physics B: Lasers and Optics
卷	109
期	2
DOI	https://doi.org/10.1007/s00340-012-5221-4
出版状态	已出版 - 11月 2012

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title = "Acetylene detection based on diode laser QEPAS: Combined wavelength and residual amplitude modulation",

abstract = "Quartz-enhanced photoacoustic spectroscopy (QEPAS) is demonstrated for acetylene detection at atmospheric pressure and room temperature with a fiber-coupled distributed feedback (DFB) diode laser operating at \textasciitilde{}1.53 μm. An efficient approach for gas concentration calibration is demonstrated. The effect of residual amplitude modulation on the performance of wavelength modulated QEPAS is investigated theoretically and experimentally. With optimized spectrophone parameters and modulation depth, a minimum detectable limit (1σ) of \textasciitilde{}2 part-per-million volume (ppmv) was achieved with an 8.44-mW diode laser, which corresponds to a normalized noise equivalent coefficient (1σ) of 6.16 × 10-8 cm-1 W/Hz1/2.",

author = "Y. Cao and W. Jin and Ho, \{H. L.\} and L. Qi and Yang, \{Y. H.\}",

year = "2012",

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doi = "10.1007/s00340-012-5221-4",

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T2 - Combined wavelength and residual amplitude modulation

AU - Cao, Y.

AU - Jin, W.

AU - Ho, H. L.

AU - Qi, L.

AU - Yang, Y. H.

PY - 2012/11

Y1 - 2012/11

N2 - Quartz-enhanced photoacoustic spectroscopy (QEPAS) is demonstrated for acetylene detection at atmospheric pressure and room temperature with a fiber-coupled distributed feedback (DFB) diode laser operating at ~1.53 μm. An efficient approach for gas concentration calibration is demonstrated. The effect of residual amplitude modulation on the performance of wavelength modulated QEPAS is investigated theoretically and experimentally. With optimized spectrophone parameters and modulation depth, a minimum detectable limit (1σ) of ~2 part-per-million volume (ppmv) was achieved with an 8.44-mW diode laser, which corresponds to a normalized noise equivalent coefficient (1σ) of 6.16 × 10-8 cm-1 W/Hz1/2.

AB - Quartz-enhanced photoacoustic spectroscopy (QEPAS) is demonstrated for acetylene detection at atmospheric pressure and room temperature with a fiber-coupled distributed feedback (DFB) diode laser operating at ~1.53 μm. An efficient approach for gas concentration calibration is demonstrated. The effect of residual amplitude modulation on the performance of wavelength modulated QEPAS is investigated theoretically and experimentally. With optimized spectrophone parameters and modulation depth, a minimum detectable limit (1σ) of ~2 part-per-million volume (ppmv) was achieved with an 8.44-mW diode laser, which corresponds to a normalized noise equivalent coefficient (1σ) of 6.16 × 10-8 cm-1 W/Hz1/2.

UR - https://www.scopus.com/pages/publications/84869499869

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DO - 10.1007/s00340-012-5221-4

M3 - 文章

AN - SCOPUS:84869499869

SN - 0946-2171

VL - 109

SP - 359

EP - 366

JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

IS - 2

ER -

Acetylene detection based on diode laser QEPAS: Combined wavelength and residual amplitude modulation

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