Kev siv tshuab photoelectric detection tshiab (Avalanche photodetector) : Ib tshooj tshiab hauv kev qhia txog cov teeb liab tsis muaj zog
Hauv kev tshawb fawb txog kev tshawb fawb, qhov tseeb ntawm kev ntes tau cov teeb liab tsis muaj zog yog qhov tseem ceeb rau kev qhib ntau qhov chaw tshawb fawb. Tsis ntev los no, kev ua tiav tshiab ntawm kev tshawb fawb tau coj kev hloov pauv tseem ceeb rau kev ntes tau cov teeb liab tsis muaj zog. Lublub tshuab ntes duab av qeegcov koob uas tau tsim los ntawm pab pawg tshawb fawb nto moo hauv Suav teb, nrog nws cov kev ua tau zoo thiab cov txiaj ntsig tshwj xeeb, yuav qhib ib tshooj tshiab rau kev nrhiav pom lub teeb tsis muaj zog.
Avalanchelub tshuab ntes duabcov khoom lag luam series, raws li txoj cai avalanche amplification ntawmAPD, qhov loj dua yog 10 txog 100 npaug ntawm cov PIN photoelectric deep detector ib txwm muaj, nrog rau kev rhiab heev, suab nrov tsawg, kev ua tau zoo ntawm kev tshawb pom thiab lwm yam zoo tseem ceeb. Kev tshwm sim ntawm cov khoom no yuav pab cov kws tshawb fawb nrhiav tau zoo dua thiab txheeb xyuas cov teeb liab tsis muaj zog, thiab txhawb nqa qhov tob ntawm kev tshawb fawb.
Cov yam ntxwv tseem ceeb ntawm cov khoom no yog suab nrov qis, nce siab thiab fiber ntau optical, kev xaiv sib txuas lus. Qhov no txhais tau tias txawm tias nws yog ib puag ncig hauv chaw kuaj mob lossis ib puag ncig sab nraud nyuaj, cov khoom tuaj yeem ua tiav qhov kev tshawb pom teeb liab optical tseeb, muab kev txhawb nqa cov ntaub ntawv txhim khu kev qha rau cov kws tshawb fawb. Cov thev naus laus zis tshiab no tsis yog tsuas yog txhim kho qhov kev ua haujlwm ntawm kev tshawb pom ntawm cov teeb liab optical, tab sis kuj txo cov suab nrov tsim tawm hauv cov txheej txheem tshawb pom thiab txhim kho qhov tseeb ntawm kev tshawb pom.
Tshwj xeeb, qhov ntau ntawm cov lus teb spectra npog 300-1100nm thiab 800-1700nm, nrog 3dB bandwidths txog li 200MHz, 500MHz, 1GHz thiab 10GHz. Cov lus qhia thiab cov kev teeb tsa sib txawv no ua rau cov khoom hloov kho rau ntau yam kev xav tau kev tshawb fawb, thiab ntau yam kev siv, suav nrog kev tshawb pom teeb liab tsis muaj zog, kev tshawb pom teeb liab ceev ceev, thiab kev sib txuas lus quantum.
Nws tsim nyog hais tias cov khoom muaj cov duab avalanche photodiode, lub voj voog suab nrov qis, APD bias boost circuit, thiab qhov ntev ntawm kev ntes ntawm tag nrho cov khoom suav nrog 300nm-1700nm. Qhov kev tsim no ua rau cov khoom ua tiav qhov kev ntes siab, tab sis kuj txo qhov suab nrov, txhim kho qhov tseeb ntawm kev ntes. Tsis tas li ntawd, cov yam ntxwv xaiv tau ntawm cov fiber ntau thiab qhov chaw sib txuas ua rau cov khoom ua tiav qhov kev ntes teeb liab raug hauv ntau qhov chaw nyuaj.
Hauv ntej, txoj kev loj hlob ntawm qhov av qeeg nolub tshuab ntes duab hluav taws xobCov koob no yog qhov tsis muaj qhov tsis ntseeg tias yog qhov kev tshawb pom loj hauv kev siv tshuab photoelectric detection. Kev tshwm sim ntawm cov khoom no muab lub sijhawm tshiab rau kev tshawb pom lub teeb tsis muaj zog thoob plaws ntiaj teb. Peb xav tias cov khoom no yuav ua lub luag haujlwm loj dua hauv kev tshawb fawb yav tom ntej, txhawb kev nce qib ntawm kev tshawb fawb, thiab pab txhawb kev txhim kho ntawm tib neeg lub zej zog zoo dua.
Lub sijhawm tshaj tawm: Cuaj hlis-07-2023