Uhlobo olutsha lweisixhobo sokubona iifotoibona imiqondiso yokukhanya ebuthathaka kwibhendi ye-2μm
Kwimimandla emininzi ephambili yophando lwezenzululwazi kunye nokusetyenziswa kwemizi-mveliso, ukubanjwa ngokuchanekileyo kunye nohlalutyo lwemiqondiso yokukhanya ebuthathaka bekusoloko kungundoqo ekuqhubeni ubuchule kwezobuchwepheshe. Ingakumbi kwi-2-micron (μm) mid-infrared band, ukufunxwa kweminwe yeemolekyuli zegesi, iimpawu zepulse ze-laser ezintsha, kunye nolwazi olunzulu lwezicubu zebhayoloji zonke ziqulethwe kule signal ye-optical ebonakala ibuthathaka kodwa inolwazi oluninzi. Nangona kunjalo, ubunzima bokubamba isignal ye-optical ebuthathaka, ukuthintela ukuphazamiseka kwendalo, kunye nobunzima obukhulu bokuhlanganiswa kwenkqubo bezisoloko ziyimiqobo efihliweyo kuphando lwezenzululwazi kunye nezicelo zobunjineli.
Namhlanje, sikuzisela imveliso ehlangabezana neemfuno zale sicelo, i-R-PR-1G type 2μm analog light detector, ezinikele ekubeni "yi-dawner" kwicandelo lokufumanisa isignali yokukhanya kwe-mid-infrared.
I-R-PR-2μmimodyuli yesixhobo sokubona ifotongobuchule idibanisa isantya esiphezulu esiphuculweyoIsixhobo sokubona iifoto se-InGaAsnge-amplifier engenangxolo iphantsi, efana ne-"super sensory" eyenzelwe ukulinganisa okuchanekileyo kwe-optical. Ukusebenza kwayo okugqwesileyo kubonakala kuluhlu olubanzi lwempendulo ye-spectral ye-900-2300nm, enokufikelela kwiibhendi ezininzi ze-mid-infrared eziphambili. Nokuba kukufunxwa okuphawulekayo kweemolekyuli zamanzi emoyeni okanye ukuphuma kwamaza okukhanya akhethekileyo yi-TM-doped kunye ne-Ho fiber lasers, zonke zinokubanjwa ngokuchanekileyo.
Ayipheleli apho, imodyuli ye-R-PR-2μm photodetector idume ngokufumana kwayo okuphezulu, uvakalelo oluphezulu kunye nokuthamba kwayo okugqwesileyo. Kwanee-pulses ze-laser ze-picosecond ezibuthathaka kakhulu zingabonwa ngokucacileyo yiyo, ziqinisekisa ukuhanjiswa kwesignali ngaphandle kokulahlekelwa. Okwangoku, uphawu lwayo lwengxolo ephantsi luthintela ngempumelelo ukuphazamiseka kwangasemva, lubonelela abaphandi ngedatha eluhlaza ecocekileyo nethembekileyo ngakumbi. Le modyuli inesakhiwo esincinci, inako ukuthintela ukuphazamiseka kwe-electromagnetic, kwaye ixhasa i-fiber yemo enye okanye i-free-space coupling input, kunye ne-SMA connector output, enceda kakhulu ukuhlanganiswa kunye nokusasazwa. Okubaluleke ngakumbi kukukhankanya kukuba ikwaxhasa ukwenziwa ngokwezifiso ngokusekelwe kwiimfuno ezithile zabathengi. Umzekelo, umphezulu we-PIN tube eyakhelwe ngaphakathi ungowokuzikhethela, ubonisa inqanaba layo eliphezulu lokuguquguquka kunye nokuzivumelanisa nezimo. Nangona ukukhanya kuncinci, kusenokulandelelana. Imodyuli ye-R-PR-2μm photodetector yenza ukukhanya okungabonakaliyo ekusebenzeni kubonakale, kulinganiseke kwaye kusetyenziswe.
Ixesha leposi: Disemba-22-2025