Temperature measurement based on adaptive dual-comb absorption spectral detection

Kangwen Yang; Hai Li; Hang Gong; Xuling Shen; Qiang Hao; Ming Yan; Kun Huang; Heping Zeng

doi:doi:10.3788/COL202018.051401

Chinese Optics Letters, 2020, 18 (5): 051401, Published Online: Apr. 23, 2020

Temperature measurement based on adaptive dual-comb absorption spectral detection Download： 736次

Kangwen Yang ¹Hai Li ¹Hang Gong ¹Xuling Shen ²Qiang Hao ¹Ming Yan ²Kun Huang ¹Heping Zeng ^1,2,*

Author Affiliations

¹ Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System, Ministry of Education, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

² State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China

Figures & Tables

Fig. 1. (a) Line strength at different temperatures for each line. (b) Line strength ratio and relative sensitivity of target lines at different temperatures.

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Fig. 2. Experimental setup. EDFA: erbium-doped optical fiber amplifier; HNLF: highly nonlinear fiber; BPF: bandpass filter; CP: coupler; ACS: asynchronous clock signal; PES: phase error signal; FAC: fast acquisition card; CLK: clock; CH: signal input channel; M: mixer.

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Fig. 3. Spectra of two combs from the fiber oscillator (gray solid line), broadening spectra after the highly nonlinear fibers (blue dotted line), and filtered spectra (red area) for (a) comb and (b) comb B respectively.

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Fig. 4. (a) Dual-comb interferograms of a single measurement (black) and $3 \times 10^{3}$ -fold time-domain averaging (pink). (b) Comparison of the absorption line of water vapor at 296 K with the HITRAN database.

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Fig. 5. Multiple-peak Voigt fit (solid line) to the measured spectral absorbance (dotted line) at different temperatures. The corresponding relative residuals normalized to the peak value of the respective fitting curve are shown on the top panel with a range from −10% to 10%.

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Table1. Parameters of the Two Target Lines for Simulation and Experiment

Line index	Wavenumber $ν ({cm}^{- 1})$	Line strength at 296 K ${(cm}^{- 2} \cdot {atm}^{- 1})$	$E^{″} ({cm}^{- 1})$
1	7168.437	0.29	173.366
2	7185.597	$1.96 \times 10^{- 2}$	1045.058

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Table2. Detailed Comparison Between Measured Temperature and Setting Temperature

Setting temperature (K)	Average temperature (K)	Calculated temperature (K)	Relative deviation $δ$ (%)
500	465.2	476.1	2.34
600	559.4	574.8	2.75
700	645.7	666.2	3.17
800	733.4	755.0	2.94
900	810.3	846.9	4.51
1000	891.5	935.5	4.93

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Kangwen Yang, Hai Li, Hang Gong, Xuling Shen, Qiang Hao, Ming Yan, Kun Huang, Heping Zeng. Temperature measurement based on adaptive dual-comb absorption spectral detection[J]. Chinese Optics Letters, 2020, 18(5): 051401.

Temperature measurement based on adaptive dual-comb absorption spectral detection Download： 736次

Fig. 1. (a) Line strength at different temperatures for each line. (b) Line strength ratio and relative sensitivity of target lines at different temperatures.

Fig. 2. Experimental setup. EDFA: erbium-doped optical fiber amplifier; HNLF: highly nonlinear fiber; BPF: bandpass filter; CP: coupler; ACS: asynchronous clock signal; PES: phase error signal; FAC: fast acquisition card; CLK: clock; CH: signal input channel; M: mixer.

Fig. 3. Spectra of two combs from the fiber oscillator (gray solid line), broadening spectra after the highly nonlinear fibers (blue dotted line), and filtered spectra (red area) for (a) comb and (b) comb B respectively.

Fig. 4. (a) Dual-comb interferograms of a single measurement (black) and $3 \times 10^{3}$ -fold time-domain averaging (pink). (b) Comparison of the absorption line of water vapor at 296 K with the HITRAN database.

Fig. 5. Multiple-peak Voigt fit (solid line) to the measured spectral absorbance (dotted line) at different temperatures. The corresponding relative residuals normalized to the peak value of the respective fitting curve are shown on the top panel with a range from −10% to 10%.

Table1. Parameters of the Two Target Lines for Simulation and Experiment

Table2. Detailed Comparison Between Measured Temperature and Setting Temperature

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Temperature measurement based on adaptive dual-comb absorption spectral detection Download： 736次

Fig. 1. (a) Line strength at different temperatures for each line. (b) Line strength ratio and relative sensitivity of target lines at different temperatures.

Fig. 2. Experimental setup. EDFA: erbium-doped optical fiber amplifier; HNLF: highly nonlinear fiber; BPF: bandpass filter; CP: coupler; ACS: asynchronous clock signal; PES: phase error signal; FAC: fast acquisition card; CLK: clock; CH: signal input channel; M: mixer.

Fig. 3. Spectra of two combs from the fiber oscillator (gray solid line), broadening spectra after the highly nonlinear fibers (blue dotted line), and filtered spectra (red area) for (a) comb and (b) comb B respectively.

Fig. 4. (a) Dual-comb interferograms of a single measurement (black) and 3×103-fold time-domain averaging (pink). (b) Comparison of the absorption line of water vapor at 296 K with the HITRAN database.

Fig. 5. Multiple-peak Voigt fit (solid line) to the measured spectral absorbance (dotted line) at different temperatures. The corresponding relative residuals normalized to the peak value of the respective fitting curve are shown on the top panel with a range from −10% to 10%.

Table1. Parameters of the Two Target Lines for Simulation and Experiment

Table2. Detailed Comparison Between Measured Temperature and Setting Temperature

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Fig. 4. (a) Dual-comb interferograms of a single measurement (black) and $3 \times 10^{3}$ -fold time-domain averaging (pink). (b) Comparison of the absorption line of water vapor at 296 K with the HITRAN database.