Suppression of the etalon fringe in absorption spectrometry with an infrared tunable diode laser

被引：11
作者：
Kagawa, N [1 ]
Wada, O [1 ]
Koga, R [1 ]
机构：
[1] OKAYAMA UNIV,FAC ENGN,DEPT ELECT & ELECT ENGN,OKAYAMA 700,JAPAN
来源：
OPTICAL ENGINEERING | 1997年 / 36卷 / 09期
关键词：
absorption spectrometry; etalon fringe; infrared; diode laser; polarization control; quarterwave plate;
D O I：
10.1117/1.601485
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A polarization control method is applied to suppress the etalon fringe, and experimental results are described. It is found that this method can suppress an etalon fringe of the order of 10(-6) in terms of the equivalent absolute absorption value, 1/100 of the off-controlled condition, This technique enables our tunable diode laser absorption spectrometry (TDLAS) system to measure atmospheric methane of about 2 ppmv concentration with ambiguity within 10(-4) ppmv (0.1 ppbv), This scheme is useful for the portable TDLAS systems because of its simplicity. (C) 1997 Society of Photo-Optical instrumentation Engineers.
引用
收藏
页码：2586 / 2592
页数：7
相关论文
共 13 条
  • [1] ADJOINT SPECTRUM .1. AN ALGORITHM TO EXTRACT TARGET SPECTRA UNDER SPECTRAL INTERFERENCES FOR USE IN ONLINE SPECTROMETRY
    BOUZIDI, M
    KAGAWA, N
    WADA, O
    KOGA, R
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1992, 31 (12A): : 4071 - 4080
  • [2] QUANTUM NOISE-LIMITED FM SPECTROSCOPY WITH A LEAD-SALT DIODE-LASER
    CARLISLE, CB
    COOPER, DE
    PREIER, H
    [J]. APPLIED OPTICS, 1989, 28 (13): : 2567 - 2576
  • [3] VERSATILE INTEGRATED TUNABLE DIODE-LASER SYSTEM FOR HIGH-PRECISION - APPLICATION FOR AMBIENT MEASUREMENTS OF OCS
    FRIED, A
    DRUMMOND, JR
    HENRY, B
    FOX, J
    [J]. APPLIED OPTICS, 1991, 30 (15): : 1916 - 1932
  • [4] MODULATION WAVE-FORMS FOR 2ND-HARMONIC DETECTION WITH TUNABLE DIODE-LASERS
    IGUCHI, T
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1986, 3 (03) : 419 - 423
  • [5] MURANO K, 1990, KOG TAISAKU, V26, P17
  • [6] HIGH SENSITIVITY POLLUTION DETECTION EMPLOYING TUNABLE DIODE-LASERS
    REID, J
    SHEWCHUN, J
    GARSIDE, BK
    BALLIK, EA
    [J]. APPLIED OPTICS, 1978, 17 (02): : 300 - 307
  • [7] Four-laser airborne infrared spectrometer for atmospheric trace gas measurements
    Roths, J
    Zenker, T
    Parchatka, U
    Wienhold, FG
    Harris, GW
    [J]. APPLIED OPTICS, 1996, 35 (36): : 7075 - 7084
  • [8] HIGH-SENSITIVITY SHORT-PATH MONITORING OF TRACE GASES EMPLOYING PBSNTE TUNABLE DIODE-LASER
    SANO, H
    KOGA, R
    KOSAKA, M
    SHINOHARA, K
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS, 1981, 20 (11) : 2145 - 2153
  • [9] ANALYTICAL DESCRIPTION OF TUNABLE DIODE-LASER DERIVATIVE SPECTROMETRY
    SANO, H
    KOGA, R
    KOSAKA, M
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1983, 22 (12): : 1883 - 1888
  • [10] OPTICAL INTERFERENCE FRINGE REDUCTION IN LASER-ABSORPTION EXPERIMENTS
    SILVER, JA
    STANTON, AC
    [J]. APPLIED OPTICS, 1988, 27 (10): : 1914 - 1916
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