Supercontinuum light source-based atmospheric multi-component laser occultation detection device

Abstract

The invention relates to a supercontinuum light source-based atmospheric multi-component laser occultation detection device. A supercontinuum laser source is utilized to generate mid-infrared supercontinuum laser signals capable of covering a plurality of atmospheric component characteristic absorption lines, and the concentration of various gas components in the atmosphere is measured with an occultation laser detection and heterodyne receiving mode; the device includes a power stabilization circuit, a supercontinuum laser light source, a first beam splitter, an energy monitoring module, an optical transmitting antenna, an optical receiving antenna, an optical fiber switch, a second beam splitter, a frequency control circuit, a local oscillation laser array, a combiner array, a photodetector array, a radio frequency receiver array, a lock-in amplifier array, and a data processing module. The device has broad application prospects in global climate and environmental change field, atmospheric chemistry field and the like.

Description

technical field [0001] The invention relates to an atmospheric multi-component laser occultation detection device based on a supercontinuum light source, in particular to a laser occultation device that uses a supercontinuum laser signal and a laser heterodyne detection method to simultaneously measure the concentrations of various atmospheric components, belonging to the atmospheric The field of remote sensing technology. Background technique [0002] The occultation technology using the limb detection method is an effective means to obtain the profile of atmospheric parameters. It has important application value in the detection of atmospheric thermodynamic parameters and the detection of greenhouse gas concentration, and is of great significance to the study of global climate change and environmental monitoring. [0003] The existing radio occultation technology uses radio signals as the carrier to achieve high-precision measurement of the vertical profile of atmospheric ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing radio occultation technology cannot measure the composition and concentration of gases in the atmosphere and the space coverage of solar / lunar occultation technology is limited, the present invention proposes an atmospheric multi-component laser occultation detection device based on a supercontinuum light source

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