Development of 1.6 μm continuous-wave modulation hard-target differential absorption lidar system for CO2 sensing

被引：60

作者：

Kameyama, Shumpei

Imaki, Masaharu

Hirano, Yoshihito

Ueno, Shinichi ^{[1
]}

Kawakami, Shuji ^{[2
]}

Sakaizawa, Daisuke ^{[2
]}

Nakajima, Masakatsu ^{[3
]}

机构：

[1] Mitsubishi Electr Corp, Kamakura Works, Kamakura, Kanagawa, Japan

[2] Japan Aerosp Explorat Agcy, Earth Observat Res Ctr, Tokyo, Japan

[3] Japan Aerosp Explorat Agcy, Greenhouse Gases Observing Satellite Project Team, Tokyo, Japan

来源：

OPTICS LETTERS | 2009年 / 34卷 / 10期

关键词：

Optical radar - Modulation;

D O I：

10.1364/OL.34.001513

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have demonstrated the 1.6 mu m cw modulation hard-target differential absorption lidar system for CO2 sensing. In this system, ON and OFF wavelength laser lights are intensity modulated with cw signals. Received lights of the two wavelengths from the hard target are discriminated by modulation frequencies in the electrical signal domain. The optical circuit is fiber based, and this makes the system compact and reliable. It is shown that a stable CO2 concentration measurement corresponding to a fluctuation of 4 ppm (rms) (ppm is parts per million) has been achieved in 32 s measurement intervals and the I kin path. (C) 2009 Optical Society of America

引用

页码：1513 / 1515

页数：3

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