Me ka hoʻomau mau ʻana o ka ʻoihana kamaʻilio optical, ke hoʻomau nei ka loaʻa ʻana o nā ʻenehana hou a me nā hopena mālama kālā.No ka laʻana, hoʻohana nui ʻia nā huahana CWDM a me DWDM, no laila i kēia lā e aʻo mākou e pili ana i nā huahana CWDM a me DWDM!
ʻO CWDM kahi ʻenehana hoʻoili WDM haʻahaʻa haʻahaʻa no ka papa komo o ka pūnaewele wahi metropolitan.Mālama maikaʻi i nā kumuwaiwai fiber a me nā kumukūʻai pūnaewele, hoʻoponopono ia i nā pilikia ʻelua o ka hemahema o ka fiber a me ka hoʻouna ʻana i nā lawelawe he nui.Hiki ke kūkulu ʻia ka pūnaewele a hiki ke hoʻokō ʻia ka ʻoihana i ka manawa pōkole.
Nā pōmaikaʻi o CWDM:
※ ʻO ka pōmaikaʻi nui loa o CWDM ke kumu kūʻai haʻahaʻa o nā lako.
※ Hiki iā ia ke hōʻemi i ka uku hana o ka pūnaewele.
※ Hiki iā ia ke hoʻonui nui i ka hiki ke hoʻouna i ka fiber optical a hoʻomaikaʻi i ka hoʻohana ʻana i nā kumuwaiwai fiber optical.
※ ʻO ka liʻiliʻi liʻiliʻi a me ka hoʻohana haʻahaʻa haʻahaʻa.
※ Loaʻa ka maʻalahi a me ka scalability
Hiki i ka DWDM ke hoʻohui a hoʻouna i nā lōʻihi nalu like ʻole i ka fiber hoʻokahi i ka manawa like.I mea e pono ai, ua hoʻololi ʻia kekahi fiber i nā fiber virtual lehulehu.Loaʻa iā DWDM ʻelua mau palapala noi: wehe DWDM a hoʻohui DWDM.
Nā pōmaikaʻi o DWDM:
※ ʻAʻole pili kona protocol a me ka wikiwiki o ka hoʻouna ʻana.
※Hoʻohana kaʻawale ʻia ka multiplexer a me ka splitter o ka ʻōnaehana DWDM i hoʻohui ʻia ma ka transmitter a me ka mea hoʻokipa.
※ ʻO nā mea hana DWDM i hoʻohui ʻia he ʻano maʻalahi a me ka leo liʻiliʻi, ma kahi o ka hapalima wale nō o ka wahi i noho ʻia e ka DWDM wehe, e mālama ana i nā kumuwaiwai lumi kamepiula.
※Hoʻohana wale ka ʻōnaehana DWDM i hoʻohui ʻia i nā ʻāpana passive (e like me nā multiplexers a i ʻole demultiplexers) ma ka loaʻa ʻana a me ka hoʻouna ʻana.Hiki i nā mea lawelawe kelepona ke kau pololei i nā kauoha mai nā mea hana mea hana, e hōʻemi ana i nā loulou lako a me nā kumukūʻai haʻahaʻa, a laila e mālama ai i nā kumukūʻai lako.
ʻO CWDM a me DWDM ʻelua mau hawewe mahele multiplexers, no laila he aha ka ʻokoʻa ma waena o lākou?CWDM (ie, sparse wavelength division multiplexing) a me DWDM (ie, dense wavelength division multiplexing), literally hiki iā mākou ke ʻike i ka ʻokoʻa ma waena o nā mea ʻelua: "dense" a "sparse".ʻO Sparse Wavelength Division Multiplexing, e like me ka inoa e ʻōlelo nei, he pili pili loa ia o Dense Wavelength Division Multiplexing.
Hōʻike nui ʻia ko lākou ʻokoʻa ma nā wahi ʻekolu:
1) CWDM carrier channel spacing mea akea, no laila, hiki wale 5 i 6 hawewe nalu o ka malamalama i multiplexed ma ka ia optical fiber, a me ka likeʻole ma waena o "sparse" a me "dense" inoa mai keia;
2) Hoʻohana ka laser modulated CWDM i ka laser uncooled, ʻoiai ʻo DWDM e hoʻohana i ka laser maloʻo.Hoʻohana ka laser maloʻo i ka hoʻolima ʻana i ka mahana, a ʻo ka laser hoʻoluʻu ʻole e hoʻohana i ke kani uila.Ua kaulana loa ʻo CWDM ma waena o nā mea hoʻolako noiʻi ʻoihana maʻamau.E waiho wale: ʻO DWDM kahi māhele o CWDM.
3) He ʻokoʻa ka hoʻohana ʻana i nā mea hana.Hoʻohana nui ʻia ʻo CWDM i ka papa convergence a me ka papa komo;Hoʻohana ʻia ʻo DWDM i ke kaiapuni hana kamaʻilio kaʻaahi.
Ka manawa hoʻouna: Jul-03-2021