Anyị maara na kemgbe 1990s, WDM wavelength division multiplexing technology ejirila maka njikọ fiber optic dị anya na-agbatị ọtụtụ narị ma ọ bụ ọbụna ọtụtụ puku kilomita. Maka ọtụtụ mba na mpaghara, akụrụngwa fiber optic bụ akụ ha kachasị ọnụ, ebe ọnụ ahịa akụrụngwa transceiver dị obere.
Otú ọ dị, na mmụba na-agbawa agbawa nke ọnụego nnyefe data netwọk dị ka 5G, nkà na ụzụ WDM aghọwo ihe dị mkpa na njikọ dị mkpirikpi, na ntinye ntinye nke njikọ dị mkpirikpi dị nnọọ ukwuu, na-eme ka ọnụ ahịa na nha nke transceiver components dịkwuo nro.
Ka ọ dị ugbu a, netwọkụ ndị a ka na-adabere na puku kwuru puku eriri ngwa anya otu ụdị maka nnyefe n'otu n'otu site na ọwa nkewa nkewa oghere, ọnụ ọgụgụ data nke ọwa ọ bụla dịkwa obere, ma ọ dịkarịa ala naanị narị Gbit/s (800G). T-level nwere ike ịnwe ngwa nwere oke.
Mana n'ọdịniihu a na-ahụ anya, echiche nke myirịta mbara ala nkịtị ga-erute oke scalability n'oge na-adịghị anya, ma a ga-agbakwunye ya site na myirịta ụdịdị dị iche iche nke iyi data na eriri nke ọ bụla iji nọgide na-enwekwu nkwalite na ọnụego data. Nke a nwere ike imeghe oghere ngwa ọhụrụ maka teknụzụ multiplexing nkewa ogologo, ebe oke scalability nke nọmba ọwa na ọnụego data dị oke mkpa.
N'okwu a, igwe na-emepụta ugboro comb generator (FCG), dị ka kọmpat na nke edoziri ọkụ multi wavelength, nwere ike inye ọnụ ọgụgụ buru ibu nke ndị na-ebu ngwa anya nke ọma, si otú a na-arụ ọrụ dị mkpa. Tụkwasị na nke ahụ, uru dị mkpa nke mbo ngwa anya bụ na ahịrị mbo na-adaba n'otu oge na ugboro ole, nke nwere ike ime ka ihe ndị a chọrọ maka ndị na-eche nche na-echekwa ma zere njikwa ugboro ole achọrọ maka otu ahịrị na atụmatụ omenala site na iji DFB laser arrays.
Ekwesiri ighota na uru ndi a abughi nani na onye na-ebufe nkewa nkewa nkewa multiplexing, kamakwa nye onye nata ya, ebe enwere ike dochie oscillator local discrete (LO). Ojiji LO comb generators nwere ike na-eme ka nhazi akara ngosi dijitalụ dị na ọwa nkewa nkewa nkewa ogologo, si otú a na-ebelata mgbagwoju anya nke nnata ma na-emeziwanye nnabata mkpọtụ nke oge.
Na mgbakwunye, iji akara LO comb na ọrụ akpọchiri agbachi maka nnabata ọnụ na-arụkọ ọrụ ọnụ nwere ike wughachi usoro oge-ngalaba nke mgbama multiplexing nkewa ogologo ogologo oge niile, si otú ahụ na-akwụ ụgwọ maka mmebi nke nonlinearity anya nke eriri nnyefe kpatara. Na mgbakwunye na uru echiche dabere na mgbama mgbama comb, ntanye nha na mmepụta nnukwu akụ na ụba nke ọma bụkwa ihe ndị bụ isi maka nkewa nkewa multixing transceivers n'ọdịnihu.
Ya mere, n'etiti iche iche mgbaama echiche generator, mgbawa larịị ngwaọrụ bụ ihe kwesịrị ịrịba ama. Mgbe ejikọtara ya na sekit agbakwunyere fotonic nke ukwuu maka mgbanwe mgbama data, multiplexing, routing, na nnabata, ngwaọrụ ndị dị otú ahụ nwere ike ịghọ isi ihe na-eme ka kọmpat na nke ọma wavelength nkewa multiplexing transceivers nke enwere ike imepụta ya n'ọtụtụ buru ibu na ọnụ ala dị ala, yana ikike nnyefe nke iri puku kwuru iri. Tbit/s kwa eriri.
Na mmepụta nke njedebe izipu, a na-ejikọta ọwa ọ bụla site na multiplexer (MUX), na mgbama nkewa nkewa nkewa multiplexing na-ebufe site na eriri otu ụdị. Na njedebe nnata, onye na-anata multiplexing nkewa nkewa (WDM Rx) na-eji LO local oscillator nke FCG nke abụọ maka nchọpụta nnyonye anya ọtụtụ wavelength. A na-ekewa ọwa nke mgbama mgbama nkewavelength nkewa multiplexing site na demultiplexer wee ziga ya na nhazi nnabata nnabata (Coh. Rx). N'ime ha, a na-eji ugboro demultiplexing nke oscillator LO dị ka usoro ntụaka maka onye ọ bụla na-anakọta ọnụ. Arụmọrụ nke a wavelength nkewa multiplexing njikọ doro anya na-adabere n'ụzọ dị ukwuu na isi comb mgbaàmà generator, karịsịa obosara nke ìhè na ngwa anya ike nke ọ bụla mbo akara.
N'ezie, ngwa anya ugboro comb technology ka na mmepe ogbo, na ngwa ndapụta na ahịa size bụ dịtụ obere. Ọ bụrụ na ọ nwere ike imeri mgbanaka teknụzụ, belata ọnụ ahịa, ma melite ntụkwasị obi, ọ nwere ike nweta ngwa ngwa n'ọkwa na nnyefe anya.
Oge nzipu: Dec-19-2024