N'ịrụ ọrụ netwọk mpaghara mepere emepe (karịsịa netwọọdụ mgbasa ozi anya OTN dị anya), akụrụngwa nkewa nkewa nkewa ogologo dị mkpa karịsịa. DWDM ok wavelength nkewa multiplexing akụrụngwa nwere ogologo-anya, elu-bandwidth ikike nnyefe; CWDM keadighi rarii nkewa wavelength akụrụngwa multiplexing nwere ọnụ ala. Ya mere, ọ bụrụ na ị na-ahọrọ nri wavelength nkewa multiplexing akụrụngwa na-ewu a na-eri-irè ngwa anya nnyefe usoro?

Kedu ihe dị iche n'etitiCWDM/DWDM Multiplexer?

Ka ọ dị ugbu a, usoro dị irè iji dozie mmụba na-aga n'ihu nke bandwidth nnyefe ozi bụ iji CWDM wavelength division multiplexing equipment na DWDM wavelength division multiplexing equipment, ma ha dị iche iche n'ọtụtụ akụkụ.

(1) Ọwa chawa n'etiti CWDM wavelength nkewa multiplexing akụrụngwa na DWDM wavelength nkewa multiplexing akụrụngwa

Akọwapụtara oghere ọwa dị ka ọdịiche dị n'ọnụ ọnụ ugboro ole n'etiti ọwa anya abụọ dị n'akụkụ, a na-ejikarị egbochi ndabichi n'etiti ọwa. CWDM wavelength wavelength division multiplexing equipment has a wider spacing than DWDM wavelength division multiplexing equipment. Ọ nwere ike ibunye 18 wavelengths na spectral grid site na 1271 nm ruo 1611 nm nwere oghere ọwa nke 20 nm. Ngwa nkewa nkewa ogologo nke DWDM nwere ike ibunye 40, 80 ma ọ bụ 160 wavelengths, na oghere ọwa nwere ike ịbụ 0.8 nm.

(2) Ogologo nnyefe n'etiti CWDM wavelength division multiplexing equipment and DWDM wavelength division multiplexing equipment

N'ihi na ogologo wavelength nke ok wavelength nkewa multiplexing akụrụngwa (DWDM) na-ukwuu integrated na ngwa anya eriri nnyefe usoro, DWDM wavelength nkewa multiplexing ngwá nwere ike ibunye ogologo anya karịa CWDM wavelength nkewa multiplexing akụrụngwa. CWDM wavelength wavelength division multiplexing akụrụngwa ugbu a enweghị ike nweta nnyefe anya na-akparaghị ókè, yana ebe nnyefe kacha ya bụ naanị kilomita 160, ebe ebe nnyefe nke DWDM wavelength division multiplexing equipment karịrị nke CWDM wavelength division multiplexing equipment.

(3) Modulated lasers nke CWDM wavelength nkewa multiplexing akụrụngwa na DWDM wavelength nkewa multiplexing akụrụngwa.

Usoro CWDM wavelength nkewa multiplexing akụrụngwa nwere ihe dị ala chọrọ na ihe ngosi teknụzụ nke laser, na-ejikarị laser na-adịghị mma; Usoro nke DWDM wavelength nkewa multiplexing akụrụngwa kwesịrị iji laser jụrụ oyi, na laser jụrụ oyi na-anabata usoro mgbanwe okpomọkụ iji hụ na usoro DWDM nwere arụmọrụ ka mma, nchekwa dị elu na ndụ ogologo ndụ, yabụ DWDM wavelength division multiplexer Ọ na-eri ike karịa. karịa CWDM wavelength wavelength division multiplexing equipment using uncooled lasers

(4) Ọnụ nke CWDM wavelength division multiplexing equipment and DWDM wavelength division multiplexing equipment

Usoro nke DWDM wavelength nkewa multiplexing akụrụngwa nwere ndị na-abụghị Uniform okpomọkụ nkesa na a obosara wavelength nso, otú mgbe jụrụ laser technology na-eji gbanwee okpomọkụ, ojiji na-eri nke usoro nke DWDM wavelength nkewa multiplexing akụrụngwa na-abawanye. Tụkwasị na nke ahụ, usoro nke DWDM wavelength division multiplexing equipment na-abụkarị ugboro anọ ma ọ bụ ise dị ọnụ karịa usoro CWDM wavelength division multiplexing equipment. Otú ọ dị, na mmụba na-ewu ewu nke nnukwu ebili mmiri nkewa multiplexers (DWDM), ọnụahịa nke modul anya DWDM fọrọ nke nta ka ọ bụrụ 20%-25% dị ala karịa nke CWDM modul anya.