It verifies the accuracy of the circuit through the experiment with the experimental oscillogram . we discusses the knowledge of technology of high sensitivity and raise the experiment plan and the practice data which has important means to the c02 communication system of large capacity 本文對(duì)高靈敏度信號(hào)檢測(cè)技術(shù)進(jìn)行了深入的研究,提出了具體實(shí)驗(yàn)方案、給出實(shí)測(cè)數(shù)據(jù),這對(duì)大容量co2大氣激光通信系統(tǒng)的進(jìn)一步工程化、實(shí)用化具有一定的指導(dǎo)意義。