Na'urar daukar hoto Don Ragewar Laser Da Gudun Gudun Gudun

A halin yanzu, akwai galibin hanyoyin kawar da dusar ƙanƙara guda uku don InGaAs APDs: ɓacin rai, danne aiki da gano gated.Ƙunƙwasawa mai wucewa yana ƙara matattun lokacin avalanche photodiodes kuma da gaske yana rage matsakaicin adadin mai ganowa, yayin da kashewar aiki yana da rikitarwa sosai saboda da'irar kashewa tana da rikitarwa sosai kuma siginar siginar tana da saurin fitarwa.A halin yanzu ana amfani da yanayin gano gated a gano hoto ɗaya.Mafi yawan amfani.

Fasahar gano hoto guda ɗaya na iya inganta daidaito da ingantaccen gano tsarin yadda ya kamata.A cikin tsarin sadarwa na Laser sararin samaniya, ƙarfin filin hasken da ya faru yana da rauni sosai, yana kusan kaiwa matakin photon.Siginar da babban na'urar daukar hoto ya gano zai damu ko ma ya nutsar da shi a wannan lokacin, yayin da ake amfani da fasahar gano hoto guda ɗaya don auna wannan siginar haske mai rauni sosai.Fasahar gano hoto guda ɗaya bisa gated InGaAs avalanche photodiodes yana da halayen ƙarancin yuwuwar bugun bugun jini, ƙaramin jitter da ƙimar ƙidayar ƙidayar.

Matsakaicin Laser ya taka muhimmiyar rawa a fannoni da yawa kamar sarrafa masana'antu, hangen nesa na soja da sadarwa ta gani ta sararin samaniya saboda daidaitattun halayensa da sauri, kuma tare da ci gaba da ci gaban fasahar optoelectronic.Daga cikin su, ban da fasahar sarrafa bugun jini na gargajiya, ana ba da shawarar wasu sabbin hanyoyin magance su akai-akai, kamar fasahar gano hoto guda daya bisa tsarin kirga photon, wanda ke inganta aikin gano siginar photon guda daya da kuma hana hayaniya don ingantawa. tsarin.daidaitattun daidaito.A cikin kewayon hoto guda ɗaya, jitter lokaci na mai gano hoto guda ɗaya da faɗin bugun bugun laser yana tantance daidaiton tsarin jeri.A cikin 'yan shekarun nan, manyan laser picosecond lasers sun haɓaka cikin sauri, don haka lokacin jitter na masu gano hoto guda ɗaya ya zama babbar matsala da ke shafar daidaiton daidaiton tsarin jeri na hoto guda.