Àgwà nke EDFA Optical Amplifier

Àgwà nkeNgwa ngwa anya EDFA
Ogologo ọrụ nke EDFANgwa ngwa anyaỌ dabara kpọmkwem n'ime oke ogologo ebili mmiri kacha mma nke 1330-1600nm maka nkwukọrịta eriri optic. Ejirila EDFA Optical Amplifier nke na-arụ ọrụ na C-band (1530-1565nm) nke nwere windo mbelata eriri kacha ala. Iji jiri akụrụngwa bandwit nke eriri optic mee ihe nke ọma, ndị mmadụ na-agbakwa mbọ ịmepụta EDFA Optical Amplifier na L-band (1570-1610nm). L-band dị n'ọdụ nke EDFA amplifier gain spectrum, yabụ L-band EDFA Optical Amplifier ga-eji eriri ogologo na ike mgbapụta dị elu, ma ọ bụ jiri eriri doped dị elu.
EDFA Optical Amplifier nwere 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 ebili mmiri (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 ekenyela 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 ahụ,Ihe Mgbakwunye EDFAe ji ihe ndị na-anaghị arụ ọrụ rụọ 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 a na-eme ka ntụkwasị obi dịkwuo mma. Na mgbakwunye, njirimara mmụba nke EDFA Amplifier na-adabereghị na ọnụego bit sistemụ na usoro data, yabụ ọ nwere ike ịbawanye ma zipu ma ozi dijitalụ na analog.
Ihe ọghọm dị na EDFA Optical Amplifier bụ: nnukwu nha; Ndụ nke isi iyi mgbapụta adịghị ogologo; Enweghị ike ijikọ ya na ngwaọrụ ndị ọzọ, nke na-egbochi ojiji nke EDFA Amplifier na njikọta optoelectronic (OEIC). Na mgbakwunye, bandwidth uru nke EDFA Optical Amplifier na-ekpuchi naanị akụkụ nke obere windo mbelata nke eriri quartz otu ụdị, nke na-ebelata ọnụọgụ ọwa ogologo oge nke eriri ahụ nwere ike ịnabata, nke bụkwa ihe na-adịghị mma ya.