Photothermal multi-species detection in a hollow-core fiber with frequency-division multiplexing

doi:10.1016/j.snb.2022.132333

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	Photothermal multi-species detection in a hollow-core fiber with frequency-division multiplexing
	Z. Wang; H. Zhang; J. N. Wang; S. L. Jiang; S. F. Gao; Y. Y. Wang; W. Jin; Q. Wang and W. Ren
	2022
发表期刊	Sensors and Actuators B-Chemical
卷号	369 期号:6
摘要	A photothermal gas sensor has been developed for simultaneous multi-species detection in a hollow-core fiber based on the frequency-division multiplexing technique. By passing multiple pump lasers and a probe laser through a gas-filled hollow-core anti-resonant fiber (HC-ARF), the absorption-generated modulation of the refractive index at various frequencies is sensitively detected by an in-line interferometer. Three distributed-feedback diode lasers at C-band, L-band and U-band are employed as pump lasers for C2H2, CO2 and CH4 detection. Assisted by optical power amplifiers, the sensor achieves noise equivalent concentrations of 2.5 ppb, 21 ppm and 200 ppb for C2H2, CO2 and CH4, respectively. The sensor demonstrates excellent linear response to gas concentrations with R-square values between 0.996 and 0.999. Measurement of the three gas species with time-varying concentrations, as well as the aforementioned experiments, further validates the simultaneous multi-species detection with high sensitivity, compact size, and extremely low gas consumption.
DOI	10.1016/j.snb.2022.132333
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收录类别	sci ; ei
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66987
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. Wang,H. Zhang,J. N. Wang,et al. Photothermal multi-species detection in a hollow-core fiber with frequency-division multiplexing[J]. Sensors and Actuators B-Chemical,2022,369(6).
APA	Z. Wang.,H. Zhang.,J. N. Wang.,S. L. Jiang.,S. F. Gao.,...&Q. Wang and W. Ren.(2022).Photothermal multi-species detection in a hollow-core fiber with frequency-division multiplexing.Sensors and Actuators B-Chemical,369(6).
MLA	Z. Wang,et al."Photothermal multi-species detection in a hollow-core fiber with frequency-division multiplexing".Sensors and Actuators B-Chemical 369.6(2022).

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