Uhlobo oluvamile lwei-amplifier yokukhanyaesetshenziswa ekuxhumaneni kwe-optical
Uma izimpawu zokukhanya zidluliselwa ngemicu ye-optical, njengoba ibanga likhula, izimpawu zokukhanya zizoncipha kancane kancane futhi zibangele nokuphazamiseka kokuxhumana… Kuze kube yilapho kuvela ama-amplifiers optical, afana “nesiteshi sikaphethiloli”, agcwalisa amandla ezimpawu zokukhanya ukuze akwazi ukuthutha idatha kahle aye endaweni oya kuyo. Lolu daba luzokwethula kuwe i-amplifier evamile yokukhanya ekuxhumaneni kwe-optical – ii-amplifier yefayibha efakwe i-erbium(i-amplifier ye-EDFA optical).
I-amplifier yefayibha efakwe i-erbium, njengoba igama lisikisela: i-Erbium (Er), into engavamile yomhlaba, ifakwa ku-fiber ye-quartz. Lapho isignali ye-optical yokufaka idlula ku-fiber efakwe i-erbium, ama-ion e-erbium amathathu (i-Er³⁺) azomunca amandla okukhanya kwephampu futhi ashintshele ezingeni eliphezulu lamandla. Inani lezinhlayiya ezisesimweni esijabulisayo liyaguqulwa. Ngaphansi kokufakwa kokukhanya kwesignali yokufaka, ama-ion e-rare earth angavamile e-excited-state akhishwa ngokuvuselelwa futhi akhulule ama-photon emvamisa efanayo nokukhanya kwesignali, ngaleyo ndlela afinyelele ukwandiswa kokukhanya.
Izingxenye ezakha i-I-amplifier ye-EDFA opticalngokuvamile zifaka phakathi ama-couplers e-optical (ngokuvamile asebenzisa ama-multiplexers e-wavelength division WDM), ama-optical isolators, imicu e-erbium-doped, izihlungi, kanye nemithombo yephampu. Phakathi kwazo, i-optical coupler ihlanganisa ngobuhlakani ukukhanya kokufaka kanye nokukhanya kwephampu ukuqinisekisa ukuthi isignali ifakwe ngokunembile ku-fiber e-erbium-doped; indima ye-optical isolator ukucindezela ukukhanya okungenamsebenzi endleleni ye-optical ukuvimbela amasignali okuphazamiseka okungadingekile ukuthi akheke, ukuqinisekisa ukudluliselwa kwesignali okuqondiswe ngakunye; isihlungi se-optical sisusa umsindo ongafuneki ukuthuthukisa isilinganiso sesignali kuya komsindo nokuqinisekisa ukucaca kokudluliselwa kolwazi.
Njengamanje, abacwaningi bathuthukisa ama-amplifiers e-fiber e-dual-band (DBFA) kanye nama-amplifiers e-ultra-wideband (UWOA), ahlose ukwandisa i-gain bandwidth ku-frequency band yonke ye-wavelength division multiplexing (WDM). Muva nje, ithimba locwaningo elihlangene elivela ezikhungweni zocwaningo zaseYurophu lithuthukise i-traveling wave parametric amplifier esekelwe kuma-photonic chips. Ngesakhiwo esihlanganisiwe, sifinyelela ukwandiswa kwesignali ye-ultra-wideband, nge-bandwidth engu-140 nm (okuphindwe kathathu kune-EDFA yendabuko), futhi ivolumu incishisiwe yaba yi-centimeter level, ihlinzeka ngokusekelwa kwesivinini esikhulu kakhulu kwezikhungo zedatha kanye ne-AI computing. Lawa "ma-amplifiers amakhulu" azosekela ukudluliselwa kwama-wavelength angaphezu kwekhulu nge-fiber ngayinye, abeke isisekelo sokuxhumana kwe-holographic kanye nezimboni ezihlakaniphile kanye nezinye izinhlelo zokusebenza enkathini ye-6G.
Isikhathi sokuthunyelwe: Feb-03-2026