ʻO nā hana hoʻohālikelike lehulehu a me kā lākou male no-chip: kahi loiloi

ʻO nā hana lehulehu nui a me kā lākou male no ka-chip aʻO ke kamaʻilioʻanaʻo Optical: kahi loiloi

ʻO ka hana he nui he kumuhana haʻahaʻa he kumuhana noiʻi, a me nā aʻo mua a me nā aʻo mua ma ke ao i kahi haʻahaʻa ma kēia mahinaʻai. I luna o nā makahiki, he nui nāʻenehana he nui e like me ka neʻeʻana o ka neʻeʻana (WDM) ʻO ka neʻeʻana o ka manawaleʻa e hoʻokaʻawale i ka lehulehu (WDM) i nā hōʻailonaʻelua a iʻole nā ​​hōʻailona hou o nāʻano haʻahaʻa haʻahaʻa haʻahaʻa ma luna o kahiʻano lōʻihi. Ua kuhi muaʻia ka Tetory ma Dulange ma 1970 aʻaʻole i hiki a hiki i 1977 a hiki i ke ahiahiʻo WDM ma ka noiʻana i nā pūnaewele pili pili. Mai laila, me ka hoʻomohala mauʻana oʻO ka fiber kūpono, Waiwai, kiakikoa me nā kahua'ē aʻe,ʻo ka nānāʻana o nā poʻe i kaʻenehana wdm i hoʻopauʻia. ʻO ka maikaʻi o ka polari-polarinize (pdm) i hiki ke hoʻonuiʻia ka nui o ka hoʻounaʻana, no ka mea ke māheleʻokoʻa nei nā papa'āina liʻiliʻi o ka.

Ke hoʻomau nei ka noiʻana i nā kumukūʻai kiʻekiʻe e ulu ai, keʻano hope o ke kūʻokoʻa o ka lehulehu, kahi i aʻoʻia i nā makahiki i hala. I waena o lākou, ua ulu nui ka māhele mode (mdm) e nā transmitters, iʻikeʻia e ka mode spatial e like me ka mode spatialx. ʻO ka mea hope loa, ua kākoʻoʻia ka hōʻailona e ka mode spatial i keʻano haʻahaʻa haʻahaʻa haʻahaʻa. I ka wā o ka hōʻailona hōʻailona, ​​nāʻano hana likeʻole ma keʻano he nui o ka nui o ka wahi,ʻo ia hoʻi e hoʻokō i ka hana maʻamau. Ma MDM, nā'ōmole spatialʻokoʻa (ʻo ia hoʻi, nāʻano likeʻole) o kahi hoʻohālike i hāʻawiʻia i nāʻano likeʻole. ʻO ka laʻana, ua hoʻounaʻia kahi kahawai ma luna o kahi beamʻo Laser e like me ka triangle, square. ʻO nā hiʻohiʻona i hoʻohanaʻia e MDM i nā noi maoli o nā noi maoli a he mea paʻakikī a me nāʻano likeʻole a me nāʻano kino. ʻO kēiaʻenehana keʻano nui loa i ka regreestrivern recortrought i loko o ka laweʻana i kaʻike o kaʻike o kaʻikepili optic i ka makahiki 1980s. Hāʻawi kaʻenehana MDM i kahi hoʻolālā hou e hoʻokō i nā ala hou aʻe a hoʻonui i ka mana o ka hoʻopiliʻana i kahi mea lawe lōʻihi. ʻO keʻano o ka aglal agular agular (oam) kahi hiʻohiʻona kino o nā nalu electromagnetic i hoʻoholoʻia e keʻano helfronnt. ʻOiai e hiki ke hoʻohanaʻia i kēia hiʻohiʻona e hoʻokumu i nā channels'ē aʻe, hiki ke hoʻonui i ka nui o nā mea kūʻai aku (Oamm).