Taura Optical: painga atu huakore

I roto i te mau hitu ahuru, ka reira rawa huatau ki te whai i te marama te po i roto i te whare moenga, arā, o te turanga hemispherical, me te kohuki i waveguides reira kurupae. I roto i tenei hanga itehia i te marama atarua pouri i roto i te puka o ira iti, tahu i te matamata muka kikokore translucent. Kei te tino i hanga tenei he mea ataahua i hua ururua o te ahua hou o kaiarahi mōhiohio. Ingoa ratou - taura whatu (aka - te pūtāuta, arā, ngā rārangi kōrero te muka-whatu).

Muimui parau tumu mahi

Tetahi kaiwhakahaere hiko he ātete kaha kore anake, engari ano hoki urupare (capacitive me inductive). Ko ti'aturi i runga i te diameter o te waea, ona āhuatanga poipoi ēnei tawhā tinana, me o te akoranga te roa raina honotanga tohu o te kaituku ki te pūrere tangohanga. Ngā tairongo ki te parenga hongere nui takere kounga kōrero. Muka-whatu taura e kore e whai i tenei drawback, reira parekura nui iti atu i roto i conductors tikanga, no te mea ko te kawe mōhiohio pūngao marama. He mārama, me te ngāwari hongere mahi parau tumu. I hono tohu he tāuru, tahuri i hiko ki optical. I te putanga i reira ko tona demodulation, a tomo te reira kua he ngātere ngaohiko mua te pūrere kaiwhiwhi-mōhiohio.

Painga o te muka Channel

I tua atu ki te ātete ki te raweketia me te attenuation, taura optical i ētahi atu painga rawa nui. A, no te te tuku o te mōhiohio ki runga i te takere muka te rota māmā pupuri reira matatapu, no te mea he reira ngā taea ki te hono ki a ratou puku. He ōhanga tētahi atu painga o tenei tikanga o te tuku. Parahi - he whakarewa utu, me te tae, i roto i te rauemi waveguide utu atu utu. Kei te hanga te taura optical i kiripaka ranei tito polymer motuhake (fluoro-aluminate, fluoro-zirconate ranei), e hoki (tura te toru) he nui mama atu waea whakarewa me hoki e kia whakaaturanga.

hapehape kōrero whatu

Ae, e kore taura optical, me te mea katoa i roto i tenei ao, ko te kahore drawbacks,.

Tuatahi, ki te whakahoki kōrero ki te tuwhera ara iahiko titau whakakapinga o te rohe pakaru katoa, e kore e taea te kanawa waveguides te kupu tino whakanuia ana te utu o te hanga.

Tuarua, ko te mahi tāutanga he hoki e kore e cheap utu. Hoki ratou whakatinanatanga Me ki pū mīhini, me he mea utu. A e hiahiatia nui pūkenga, me te hiahia ratou, ka utu i runga i.

Tuatoru, ki te mea pūtahuri tohu i te rārangi kōkuhu me te whakaputa, me te tūhono (whakaaro e whakarato whakawhitinga), tono tiketike rawa i runga i te tika, te parekura optical o tika. Ko te kounga, ko te utu te moni, Me kahore tetahi ki te whakamārama.

Communication heke mai

Tonu, nga painga o atu. Ka taea e taura whatu tuku he tohu aunui, e tino whakanuia ana te tere o te utu mōhiohio (whanganga kē i roto i terabits ia te rua). A, no te Ko te tino iti tenei attenuation (i te roangaru o 1.55 microns, he reira 0,22 anake DB / km). Ano, ko te kaha o ngaru marama neke i roto i ngā tohutohu ritenga (ki rerekē vahiraa) i roto i te kaiwhakahaere muka whatu kotahi whakanuia ana wāhitanga. tonu ratou whakapai ake.