Theknoloji e tsoetseng pele ea ho bona motlakase (Avalanche photodetector) : Khaolo e ncha ea ho senola mats'oao a mabone a fokolang
Lipatlisisong tsa saense, ho lemoha ka nepo mats'oao a mabone a fokolang ke senotlolo sa ho bula mafapha a mangata a saense.Haufinyane tjena, phihlello e ncha ea lipatlisiso tsa mahlale e tlisitse liphetoho tse kholo mabapi le ho lemoha mats'oao a mabone a fokolang.TheAvalanche photodetectorletoto le entsoeng ke sehlopha se tsebahalang sa lipatlisiso tsa mahlale naheng ea China, ka ts'ebetso ea sona e ikhethang le melemo, e tla bula khaolo e ncha bakeng sa ho lemoha matšoao a bobebe a leseli.
Avalanchephotodetectorletoto la lihlahisoa, ho ea ka avalanche amplification molao-motheo oaAPD, ho hōlisa ke makhetlo a 10 ho isa ho a 100 ho feta a mochine o tloaelehileng oa PIN oa photoelectric deep detector, e nang le kutlo e phahameng, lerata le tlaase, ts'ebetso e ntle ea ho lemoha le melemo e meng ea bohlokoa.Ho hlaha ha letoto lena la lihlahisoa ho tla thusa bafuputsi ho lemoha le ho sekaseka mats'oao a leseli a fokolang, le ho tsoela pele ho khothaletsa botebo ba lipatlisiso tsa mahlale.
Likarolo tse ka sehloohong tsa letoto lena la lihlahisoa ke lerata le tlaase, phaello e phahameng le fiber optical, likhetho tsa ho kopanya libaka.Sena se bolela hore ho sa tsotellehe hore na ke tikoloho ea laboratori kapa tikoloho e rarahaneng ea ka ntle, sehlahisoa se ka finyella mokhoa o nepahetseng oa ho lemoha matšoao a optical, ho fana ka tšehetso e tšepahalang ea data ho bafuputsi.Theknoloji ena e ncha ha e ntlafatse feela ts'ebetso ea ho lemoha ha matšoao a optical, empa hape e fokotsa lerata le hlahisoang ts'ebetsong ea ho lemoha le ho ntlafatsa ho nepahala ha ho lemoha.
Ka ho khetheha, mefuta e mengata ea likarabo e akaretsa 300-1100nm le 800-1700nm, e nang le li-bandwidth tsa 3dB ho fihla ho 200MHz, 500MHz, 1GHz le 10GHz.Litlhaloso le liparamente tsena tse fapaneng li thusa sehlahisoa ho ikamahanya le litlhoko tse fapaneng tsa lipatlisiso tsa mahlale, le mefuta e mengata ea lits'ebetso, ho kenyeletsoa ho lemoha ha mats'oao a mahlo a fokolang, ho lemoha mats'oao a lebelo le phahameng la optical pulse, le puisano ea quantum.
Ho bohlokoa ho bolela hore sehlahisoa se na le avalanche photodiode e hahelletsoeng ka har'a avalanche, potoloho ea molumo o tlase oa lerata, potoloho ea APD bias boost, le bolelele ba letoto la lihlahisoa tse koahelang 300nm-1700nm.Moralo ona o etsa hore sehlahisoa se fihlelle temoho e phahameng ea kutlo, empa hape se fokotsa lerata ka katleho, se ntlafatsa ho nepahala ha ho lemoha.Ho phaella moo, likarolo tsa boikhethelo tsa fiber optical le spatial coupling li nolofalletsa sehlahisoa hore se finyelle ho lemoha matšoao a nepahetseng libakeng tse sa tšoaneng tse rarahaneng.
Ka bokhutšoanyane, nts'etsopele ea avalanche enamochine oa motlakase oa lifotoseries ha ho pelaelo hore ke katleho e kholo ho theknoloji ea ho lemoha photoelectric.Ho hlaha ha sehlahisoa sena ho fana ka monyetla o mocha oa ho lemoha matšoao a fokolang a leseli lefatšeng ka bophara.Re lebelletse hore sehlahisoa sena se tla bapala karolo e kholo lipatlisisong tsa saense tsa kamoso, ho khothaletsa tsoelo-pele ea mahlale, le ho sebeletsa nts'etsopele ea sechaba hamolemo.
Nako ea poso: Sep-07-2023