Journals Articles Conferences News About CLP
Submit a paper Email Alert
Search
Search
Articles
Journals
News
Advanced Search
Top Searches
2D MaterialsTransformation opticsQuantum PhotonicsSmall lasersSemiconductor UV PhotonicsSupersymmetric microring laser arrays

Laser & Optoelectronics Progress, Volume. 62, Issue 13, 1330002(2025)

Periodic Discrete Fourier Transform Algorithm for Gas Detection in Cavity Ring-Down Spectroscopy

Xin Luo1, Zilong Guo1, Haosu Zhu3, Minlei Liu3, Xinran Zhang3, Tongtong Jiang2, Jingjing Sun1, Guojie Tu1, and Sheng Zhou1、*
Author Affiliations
  • 1Key Laboratory of Opto-Electronic Information Acquisition and Manipulation, Ministry of Education, Information Materials and Intelligent Sensing Laboratory of Anhui Province, School of Physics and Optoelectronic Engineering, Anhui University, Hefei 230601, Anhui , China
  • 2School of Materials Science and Engineering, Anhui University, Hefei 230601, Anhui , China
  • 3Stony Brook Institute at Anhui University, Hefei 230601, Anhui , China
    • show less
    AbstractGet PDF(in Chinese)
    Figures&Tables (9)
    Equations (9)
    References (32)
    Tools
    Paper Information
    Topics
    Figures & Tables(9)
    Flow chart of the PDFT algorithm

    Fig. 1. Flow chart of the PDFT algorithm

    Download full size
    Experimental setup of cavity ring-down system

    Fig. 2. Experimental setup of cavity ring-down system

    Download full size
    Impact of periodic number. (a) Standard deviation and its first derivative; (b) fitting time

    Fig. 3. Impact of periodic number. (a) Standard deviation and its first derivative; (b) fitting time

    Download full size
    Linear fit of the ring-down time results extracted by PDFT

    Fig. 4. Linear fit of the ring-down time results extracted by PDFT

    Download full size
    Results of ring-down time extraction by four algorithms based on simulated data

    Fig. 5. Results of ring-down time extraction by four algorithms based on simulated data

    Download full size
    Results of response time extraction by three algorithms based on simulated data

    Fig. 6. Results of response time extraction by three algorithms based on simulated data

    Download full size
    Error analysis. (a) Light source wavelength fluctuation; (b) triangular wave signal

    Fig. 7. Error analysis. (a) Light source wavelength fluctuation; (b) triangular wave signal

    Download full size
    Detection results for various ammonia volume fractions

    Fig. 8. Detection results for various ammonia volume fractions

    Download full size
    Comparison analysis results of PDFT based on experimental data. (a) Ring-down time extraction results; (b) ammonia volume fraction; (c) absolute error; (d) Allan deviation analysis

    Fig. 9. Comparison analysis results of PDFT based on experimental data. (a) Ring-down time extraction results; (b) ammonia volume fraction; (c) absolute error; (d) Allan deviation analysis

    Download full size
    Tools

    Get Citation

    Copy Citation Text

    Xin Luo, Zilong Guo, Haosu Zhu, Minlei Liu, Xinran Zhang, Tongtong Jiang, Jingjing Sun, Guojie Tu, Sheng Zhou. Periodic Discrete Fourier Transform Algorithm for Gas Detection in Cavity Ring-Down Spectroscopy[J]. Laser & Optoelectronics Progress, 2025, 62(13): 1330002

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Set citation alerts for article
    Save article for my favorites
    Paper Information

    Category: Spectroscopy

    Received: Dec. 6, 2024

    Accepted: Jan. 20, 2025

    Published Online: Jul. 16, 2025

    The Author Email: Sheng Zhou (optzsh@ahu.edu.cn)

    DOI:10.3788/LOP242383

    CSTR:32186.14.LOP242383

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology