He aha ke kumumanaʻo hoʻonohonoho o ka ʻōnaehana multiplexing mahele wavelength?

ʻO ka optical wavelength division multiplexing kahi ʻenehana e hoʻouna i nā hōʻailona optical multi-wavelength i loko o hoʻokahi fiber optical. ʻO ke kumu nui, ʻo ia ka hoʻohui ʻana (multiplex) i nā hōʻailona optical o nā nalu like ʻole ma ka hopena hoʻouna, e hoʻopili iā lākou i ka fiber optical like ma ka laina kaula optical no ka hoʻouna ʻana, a hoʻokaʻawale (demultiplex) i nā hōʻailona optical o nā nalu i hui pū ʻia ma ka hopena loaʻa. , a hana hou ʻia, hoʻihoʻi ʻia ka hōʻailona mua a hoʻouna ʻia i nā kikowaena like ʻole.

ʻAʻole he manaʻo hou ka WDM wavelength division multiplexing. I ka hoʻomaka ʻana o ke kamaʻilio fiber optical, ua ʻike ka poʻe hiki ke hoʻohana ʻia ka bandwidth nui o ka optical fiber no ka hoʻoili ʻana o ka wavelength multiplexing, akā ma mua o nā makahiki 1990, ʻaʻohe holomua nui i kēia ʻenehana. Ka ulu wikiwiki ʻana Mai 155Mbit/s a i 622Mbit/s a i 2.5Gbit/s ʻŌnaehana Ua piʻi aʻe ka wikiwiki o ka TDM i nā makahiki i hala iho nei. Kākaʻikahi ka poʻe e hoʻolohe i kahi ʻenehana ʻē aʻe ke holo wikiwiki nei kekahi ʻenehana Ma kahi o 1995 ʻO kahi kumu nui no ka huli ʻana i ka hoʻomohala ʻana o ka ʻōnaehana WDM ʻo ia ka loaʻa ʻana o nā pilikia i ka ʻenehana TDM 10Gbit/s i kēlā manawa, a ua kau ka nui o nā maka i ka multiplexing a me ka hana ʻana i nā hōʻailona optical. I kēlā manawa wale nō i loaʻa ai i ka ʻōnaehana WDM kahi ākea o nā noi a puni ka honua. .