USE OF ROTATIONAL SIDE-BAND ABSORPTION FOR HIGH-SENSITIVITY METHANE DETECTION WITH A 1.64-MU-M DFB LASER

被引：7

作者：

WELDON, V

PHELAN, P

HEGARTY, J

机构：

[1] Optronics Ireland Research Centre, Physics Department, Trinity College

来源：

ELECTRONICS LETTERS | 1992年 / 28卷 / 22期

关键词：

DISTRIBUTED FEEDBACK LASERS; METHANE DETECTION;

D O I：

10.1049/el:19921345

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

High sensitivity methane detection using a 1.64 mum DFB laser in the rotational sideband of the 2nu3 overtone region is demonstrated. A sensitivity of 2 ppm.m was achieved which is comparable with recent measurements in the purely vibrational Q branch and therefore relaxes the wavelength constraints of DFB lasers for methane sensing.

引用

页码：2098 / 2099

页数：2

共 5 条

[1]

CHAN K, 1984, J LIGHTWAVE TECHNOL, V2, P234, DOI 10.1109/JLT.1984.1073609

[2] REMOTE-SENSING OF METHANE GAS BY DIFFERENTIAL ABSORPTION MEASUREMENT USING A WAVELENGTH TUNABLE DFB LD [J].

SHIMOSE, Y ;

OKAMOTO, T ;

MARUYAMA, A ;

AIZAWA, M ;

NAGAI, H .

IEEE PHOTONICS TECHNOLOGY LETTERS, 1991, 3 (01) :86-87

[3]

TAI H, 1990, 7TH P OFS C SYDN, P51

[4] REMOTE DETECTION OF METHANE WITH A 1.66-MU-M DIODE-LASER [J].

UEHARA, K ;

TAI, H .

APPLIED OPTICS, 1992, 31 (06) :809-814

[5] OPERATING CHARACTERISTICS OF A TUNABLE DIODE-LASER ABSORPTION SPECTROMETER USING SHORT-EXTERNAL-CAVITY AND DFB LASER-DIODES [J].

VENTRUDO, BF ;

CASSIDY, DT .

APPLIED OPTICS, 1990, 29 (33) :5007-5013

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