红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2013年
z2期
387-390
,共4页
王玺%聂劲松%李化%雷鹏%郝向南
王璽%聶勁鬆%李化%雷鵬%郝嚮南
왕새%섭경송%리화%뢰붕%학향남
激光干扰%高重频激光%可见光CCD探测器%阈值功率
激光榦擾%高重頻激光%可見光CCD探測器%閾值功率
격광간우%고중빈격광%가견광CCD탐측기%역치공솔
laser disturbing%laser of high pulse repetitive frequency%visible CCD detector%threshold power
分别采用1064 nm连续激光、不同高重频激光对可见光CCD探测器进行了干扰实验,观察到CCD的串扰、饱和以及高重频激光作用时产生的横向亮线等一系列干扰现象。同时测量计算了各种干扰现象相应的激光功率,研究了阈值功率与重频之间的关系,进一步分析了高重频激光的干扰机理。实验表明:重频激光与连续激光具有不同的干扰现象,重频激光的干扰效果没有连续激光好,使CCD传感器发生全屏饱和、全屏灰屏所需要的阈值功率比连续激光要高。
分彆採用1064 nm連續激光、不同高重頻激光對可見光CCD探測器進行瞭榦擾實驗,觀察到CCD的串擾、飽和以及高重頻激光作用時產生的橫嚮亮線等一繫列榦擾現象。同時測量計算瞭各種榦擾現象相應的激光功率,研究瞭閾值功率與重頻之間的關繫,進一步分析瞭高重頻激光的榦擾機理。實驗錶明:重頻激光與連續激光具有不同的榦擾現象,重頻激光的榦擾效果沒有連續激光好,使CCD傳感器髮生全屏飽和、全屏灰屏所需要的閾值功率比連續激光要高。
분별채용1064 nm련속격광、불동고중빈격광대가견광CCD탐측기진행료간우실험,관찰도CCD적천우、포화이급고중빈격광작용시산생적횡향량선등일계렬간우현상。동시측량계산료각충간우현상상응적격광공솔,연구료역치공솔여중빈지간적관계,진일보분석료고중빈격광적간우궤리。실험표명:중빈격광여련속격광구유불동적간우현상,중빈격광적간우효과몰유련속격광호,사CCD전감기발생전병포화、전병회병소수요적역치공솔비련속격광요고。
The experiment that visible CCD was irradiated by 1 064 nm CW laser, laser of different high pulse repetitive frequency (PRF) were carried out individually. The disturbance phenomenon of crosstalk, saturation, and horizontal bright line were observed. The laser power of each disturbance state was measured, and the relationship between PRF and threshold power is also studied. Furthermore, the damage mechanisms of high PRF laser were analyzed in details. The results showed that the disturbance phenomenon of high PRF laser differed from the disturbance phenomenon of CW laser, and high PRF laser had unimportant influence on laser disturbing effect compare to CW laser. It was concluded that the threshold power of full-screen saturation and all-field gray screen irradiated by repetitive frequency laser were higher than that of CW laser.