公开(公告)号：US07151787B2

公开(公告)日：2006-12-19

申请号：US10658906

申请日：2003-09-10

Applicant: Thomas Jan Kulp ,  Dahv A. V. Kliner ,  Ricky Sommers ,  Uta-Barbara Goers ,  Karla M. Armstrong

Inventor： Thomas Jan Kulp ,  Dahv A. V. Kliner ,  Ricky Sommers ,  Uta-Barbara Goers ,  Karla M. Armstrong

IPC: H01S3/091

CPC classification number: G01N21/39 ,  G01M3/38 ,  G01N2021/1795 ,  G01N2021/4709 ,  G01N2201/0214

Abstract: The location of gases that are not visible to the unaided human eye can be determined using tuned light sources that spectroscopically probe the gases and cameras that can provide images corresponding to the absorption of the gases. The present invention is a light source for a backscatter absorption gas imaging (BAGI) system, and a light source incorporating the light source, that can be used to remotely detect and produce images of “invisible” gases. The inventive light source has a light producing element, an optical amplifier, and an optical parametric oscillator to generate wavelength tunable light in the IR. By using a multi-mode light source and an amplifier that operates using 915 nm pump sources, the power consumption of the light source is reduced to a level that can be operated by batteries for long periods of time. In addition, the light source is tunable over the absorption bands of many hydrocarbons, making it useful for detecting hazardous gases.

Abstract translation: 可以使用调谐的光源来确定对肉眼不可见的气体的位置，该调谐光源光谱地探测可以提供对应于气体吸收的图像的气体和照相机。 本发明是用于后向散射吸收气体成像（BAGI）系统的光源和包含光源的光源，其可以用于远程检测和产生“不可见”气体的图像。 本发明的光源具有发光元件，光放大器和光参量振荡器，以在IR中产生波长可调光。 通过使用多模光源和使用915nm泵浦源的放大器，光源的功耗被降低到可以长时间由电池操作的水平。 此外，光源可以在许多碳氢化合物的吸收带上调节，使其可用于检测有害气体。