Àgwà nke EDFA Amplifier

Àgwà nkeIhe Mgbakwunye EDFA
Ụkpụrụ ọrụ nke amplifiers eriri yiri nke laser siri ike. E gosiri ọkwa ike dị mkpa, nnabata na spectra nke ion erbium (Er ³ ⁺) na eriri optical quartz na Foto nke 2. Njirimara amorphous nke quartz na-eme ka ọkwa ike nke ion erbium dịkwuo elu, enwere ike iji ọtụtụ mgbanwe mee ka ion erbium dị elu, yana ogologo ebili mmiri mgbapụta kachasị dị irè bụ 980 nm na 1480 nm.
Ogologo ike ọrụ nke EDFA Amplifier na-adaba kpọmkwem n'ime oke ogologo 1330-1600nm maka nkwukọrịta eriri optic. Ejila EDFA Amplifier na-arụ ọrụ na C-band (1530-1565nm) nke nwere windo mbelata eriri kacha ala eme ihe nke ukwuu. Iji jiri akụrụngwa bandwit nke eriri optic mee ihe nke ọma, ndị mmadụ na-agbakwa mbọ ịmepụta EDFA na L-band (1570-1610nm). L-band dị n'ọdụ nke EDFA gain spectrum, yabụ EDFAs L-band ga-eji eriri ogologo na ike mgbapụta dị elu, ma ọ bụ jiri eriri doped dị elu.
Ngwa ngwa anya EDFAnwere nnukwu uru (karịa 30-50dB) ma na-enye uru dị larịị n'elu nnukwu eriri ugboro (ruo 30nm), na-eme ka ọ dabara adaba maka mgbaama mmụba na ọtụtụ ọwa anya, ọkachasị na sistemụ multiplexing nkewa ogologo oge (DWDM). Mkpọtụ dị ala (4-8dB), na-eru nso oke quantum. Mgbe etinyere ya na sistemụ WDM, a na-ebelata mkparịta ụka dị n'etiti ọwa ma nwee ike ịgbakọ ọtụtụ amplifiers. N'inwe ike mmepụta saturation dị elu (10-20 dBm), enwere ike iji ya dị ka amplifier ike mgbe onye na-ebufe ya gasịrị iji mee ka anya nnyefe dịkwuo elu ma ọ bụ ọnụọgụ nke oghere anya ekenyere na-enweghị ahịrị relay. Ike mgbapụta achọrọ dị ala (iri milliwatts). Uru ahụ dabere na ọnọdụ polarization nke eriri ahụ, yabụ ọ nwere ezigbo nkwụsi ike. Ọ dị mfe ijikọ ya na eriri anya nnyefe, yana obere mfu njikọ (<1dB). Ewezuga isi iyi mgbapụta, EDFANgwa ngwa anyaỌ bụ ihe mejupụtara akụkụ ndị na-adịghị arụ ọrụ. Ya mere, ma e jiri ya tụnyere relays eletrọniki dị mgbagwoju anya ma dị oke ọnụ, ọnụ ahịa sistemụ ahụ na-ebelata nke ukwuu ma na-eme ka ntụkwasị obi dịkwuo mma.
Na mgbakwunye, njirimara mmụba nkeEDFAAmplifier anaghị adabere na ọnụego bit sistemụ na usoro data, yabụ ọ nwere ike ime ka ma ozi dijitalụ na analog dịkwuo elu. Ihe ọghọm nke amplifier eriri erbium doped bụ: nnukwu nha; Ndụ nke isi iyi mgbapụta adịghị ogologo; Enweghị ike ijikọ ya na ngwaọrụ ndị ọzọ, nke na-egbochi ojiji nkeamplifier eriri erbium dopedna njikọta optoelectronic (OEIC). Na mgbakwunye, bandwit uru nke EDFA Amplifier na-ekpuchi naanị akụkụ nke obere mfu nke eriri quartz otu ụdị, nke na-ebelata ọnụọgụ ọwa ebili mmiri nke eriri ahụ nwere ike ịnabata, nke bụkwa ihe na-adịghị mma ya.