Tambo dzeFiber Optic dzekutaurirana kure
Munguva yedhijitari, kudiwa kwekubatana nekukurumidza uye kwakasimba hakuchagari kumaguta makuru chete. Masevhisi ekutepfenyura, cloud computing, video conferencing, mabhizinesi, uye kunyange masisitimu ekutarisa maindasitiri anoda zvivakwa zvekutaurirana zvinokwanisa kutakura data rakawanda munzvimbo dzakakura. Apa ndipo panoita basa guru patambo dzefiber optic. Zvichienzaniswa nemidziyo yekufambisa data yechinyakare senge waya dzemhangura kana mawaya eredhiyo, fiber optics inopa kugona kwakanyanya, kudzikira kushoma, uye kuramba kuri nani kukanganiswa nemagetsi. Hazvishamisi kuti network dzemusana dzeinternet netambo dzepasi rose dzemugungwa dzine fiber-optic zvakanyanya.
Chii chinonzi Fiber Optic Cable?
Tambo yefiber-optic inzira yekutumira ruzivo inoshandisa chiedza. Chiedza ichi chinotungamirirwa kuburikidza neshinda dzakatetepa kwazvo (dzinenge dhayamita yebvudzi), dzinowanzo gadzirwa negirazi resilica kana mapurasitiki akakosha. Nekuti inotakura zviratidzo zvemaziso, kwete magetsi emagetsi, tambo dzefiber-optic hadzina simba rekukanganiswa nemagetsi kunowanzo tambudza tambo dzemhangura.
Kazhinji, fiber ye optical ine zvikamu zvitatu zvikuru:
1. Musoro: chikamu chepakati apo chiedza chinopararira.
2. Kufukidza (sheath): jira rine indekisi yekudzikisa chiedza ichidzokera kumukati kuburikidza nepfungwa yekufungisisa kwemukati mese.
3. Kufukidza/Kuvhara: kunodzivirira pakati nepakati pechifukidziro kubva mukukuvadzwa kwemakanika uye hunyoro.
Mumatambo chaiwo, machira aya anounganidzwa kuita chimiro chakaoma kunzwisisa: ane chinhu chinosimbisa simba, gel kana tepi inodzivisa mvura, jira rekudzivirira, uye jekete rekunze kuti rigone kutsungirira kumanikidzwa, kushushikana, kana mamiriro ekunze akaipisisa.
Nheyo Yekushanda: Data Rinoyerera Pachiedza
Mumasystem ekutaurirana nefiber-optic, data redhijitari rinoshandurwa kuita ma light pulses. Chitubu chechiedza chinoshandiswa chinowanzova laser diode kana LED (kwenguva pfupi). Ma light pulses aya anotumirwa kuburikidza nefiber, uye pakuguma kwekugamuchira, anodzoserwa kuita masaini emagetsi ne photodiode, iyo inozogadziriswa kuita data.
Pakutaurirana kure, ma laser anonyanya kushandiswa nekuti anogadzira chiedza chine simba, chinotungamira, uye chinogona kugadziriswa nekumhanya kwakanyanya. Uyezve, tekinoroji yemazuva ano inobvumira fiber imwe chete kutakura "nzira" dzakawanda panguva imwe chete ichishandisa Wavelength Division Multiplexing (WDM), iyo inotumira mawavelength akawanda (mavara echiedza) pamusoro pefiber imwe chete. Nzira iyi inowedzera zvakanyanya kugona kwekutumira pasina kuda tambo dzekuwedzera.
Mhando dzeOptical Fiber dzeKureba Kwakareba
Kune mhando mbiri huru dze optical fiber: single-mode uye multi-mode.
1. Faibha yemhando imwe chete (SMF)
Ine core diki kwazvo (inenge 8–10 µm) saka chiedza chinopararira nenzira imwe chete. Chakanakira ndechekuti kupararira kwacho kwakaderera, zvichiita kuti masaini afambe daro refu pasina kukanganisa kwakanyanya. Ndiyo sarudzo huru kune network dzedaro refu, kusanganisira carrier backbones, intercity networks, uye submarine cables.
2. Faibha yemhando dzakasiyana-siyana (MMF)
Ane core yakakura (50 kana 62,5 µm) uye anobvumira chiedza kupararira nenzira dzakasiyana-siyana. Izvi zvinoita kuti chiedza chipararire zvakanyanya uye zvinoderedza kushanda kwacho. MaMMF anowanzo shandiswa padaro pfupi, senge network dzemukati mekuvaka kana pakati pemidziyo iri pakati pedata center.
Sezvo musoro wenyaya yedu uri wekutaurirana kure, chinangwa chikuru chinenge chiri pa single-mode fiber, inowanzo sanganiswa nema optical amplifiers nemidziyo yekutumira ine simba guru.
Sei Fiber Optic Yakanakisisa Pakukurukurirana Kure?
Pane zvikonzero zvakawanda zvinoita kuti fiber optics ive ndiyo inonyanya kushandiswa pakutumira mameseji kure:
1. Kusanyanya kurerutsa
Mafiber emazuva ano e optical haanyanyi kusimba (anenge 0,2 dB/km pane mamwe ma wavelength). Izvi zvinoreva kuti masaini anogona kufamba makumi kusvika kumazana emakiromita asati adiwa kuwedzerwa simba.
2. Kukwanisa kukuru kwazvo
NeWDM uye advanced modulation, fiber inogona kusvika terabits pasekondi muhukuru, ichipfuura zvakanyanya kugona kwetambo dzemhangura, kunyanya padaro refu.
3. Kusapindira kwemagetsi (EMI)
Nekuti inotakura chiedza, fiber ye optical haikanganisirwi neminda ye electromagnetic inobva kumichina yeindasitiri, mheni, kana tambo dzemagetsi dzine simba guru. Izvi zvakakosha kuti basa rigare zvakanaka.
4. Kuchengetedzwa kwakanyanya
Kubata optical fiber kwakaoma kupfuura tambo dzemhangura. Kunyange zvazvo zvisiri zvisingabviri, kuedza kwacho kunowanzova kwakaoma uye kunogona kuonekwa kuburikidza nekuchinja kwekuderera kwesimba.
5. Saizi diki uye huremu hwakareruka
Matayi mazhinji anogona kuunganidzwa kuita waya imwe chete uku achichengetedza dhayamita diki, zvichiita kuti zvive nyore kuisa mumaducts/matireyi etambo kana mitsetse yepasi pevhu.
Matambudziko eKutaurirana Kure Nekure uye Mhinduro
Pasinei nezvakanakira, kutaurirana kure uchishandisa optical fiber kuchiri kusangana nematambudziko ehunyanzvi:
1. Kupararira
Kupenya kwechiedza kunogona kupararira munzvimbo refu, zvichikonzera kupindirana pakati pemabhiti uye kuderera kwehunhu hwechiratidzo. Mhinduro dzinosanganisira kushandiswa kwemafiber ane hunhu hwakasiyana hwekupararira, kupatsanurwa kwemvura, uye modulation yemazuva ano.
2. Zvinodiwa pakunyorovesa mvura nekusimbisa
Kunyangwe kana kuderera kwesimba remagetsi kwakaderera, kuchiripo. Muma network ekure kure, ma amplifiers e optical akadai seEDFAs (Erbium-Doped Fiber Amplifiers) anoshandiswa, ayo anogona kuwedzera ma optical signals pasina kutanga aashandura kuita ma electrical signals. Izvi zvinoita kuti network ishande zvakanaka.
3. Kusava nemutsetse wemaziso
Kana simba rakawanda, fiber inogona kuunza mhedzisiro isiri yemutsara inokanganisa chiratidzo, kunyanya mumasisitimu eWDM akakora. Dhizaini yesimba, nzvimbo yechiteshi, uye matekiniki eDSP (Digital Signal Processing) anobatsira kudzora mhedzisiro iyi.
4. Kukuvadzwa kwemuviri nekwezvakatipoteredza
Kune tambo dzepasi pevhu, tambo dzinofanira kuramba hunyoro nekumanikidzwa. Kune tambo dzepasi pegungwa, dzinofanira kugadzirwa kuti dzikwanise kutsungirira mafungu egungwa, kurumwa nemhuka dzemugungwa mune dzimwe nguva, uye kumanikidzwa kwakanyanya. Nokudaro, tambo dzepasi pegungwa dzinowanzova nezvikamu zvekudzivirira uye dhizaini yakasimba kwazvo.
Mashandisirwo eFiber Optic Ari Kureba
Kushandiswa kwefiber ye optical inofambiswa kure kwakakura zvikuru, kusanganisira:
- Nheyo huru yeinternet yenyika: kubatanidza maguta makuru nenzvimbo dzedata.
– Tambo dzepasi pegungwa dzepasi rose: dzinobatanidza makondinendi nenyika, dzichiva "ropa rehupenyu" hweinternet yepasi rose.
- Network yepakati pedata: inotsigira kukopa kwedata, masevhisi egore, uye zviri mukati zvinotepfenyurwa.
- Network yekutaurirana kwevashandisi: yemafoni, masevhisi efoni (backhaul), uye masevhisi ebhizinesi.
- Zvivakwa zvakakosha: kutaurirana kwemabhanga, hurumende, simba, uye masisitimu ekufambisa.
Munyika dzakawanda dzezvitsuwa, fiber optics dziri pasi pegungwa dzakakosha kuti pave neinternet yakaenzana. Pasina fiber optics, kubatana pakati pezvitsuwa kwaizodhura zvakanyanya uye kushoma pane kungovimba nemasatellite chete.
Maitiro Ekuisa Nekugadzirisa
Kuisa tambo ye fiber optic iri kure kunoda kuronga nokungwarira: ongororo dzenzira, kuyerwa kwezvinodiwa pakubata, kusarudzwa kwemhando yetambo, uye kuverenga bhajeti rezvinobatanidza. Kubatana kwefiber kunoitwa kuburikidza nekubatanidza (kazhinji kubatanidza) kuderedza kurasikirwa kwezvinobatanidza. Kana zvangoiswa, mhando yekubatanidza inoedzwa uchishandisa chishandiso chakadai seOptical Time Domain Reflectometer (OTDR) kuti ione kuderera kwesimba remagetsi, nzvimbo dzekubatanidza, uye kukuvara kunogona kuitika.
Kugadziriswa kwenetiweki yefiber optic kwakakoshawo. Kukanganiswa kunogona kuitika nekuda kwekuchera, njodzi dzechisikigo, kana kuparadzwa kwezvikamu. Nokudaro, vazhinji vanoita basa rekutarisa netiweki panguva chaiyo, nzira dzisina kudzoserwa, uye nzira dzekugadzirisa nekukurumidza kuti basa rirambe riripo.
Remangwana reFiber Optics reMadaro Marefu
Tekinoroji yeFiber optic iri kuramba ichichinja. Masisitimu eCoherent optics, Reconfigurable Optical Add-Drop Multiplexer (ROADM) zvishandiso, uye kuwedzera kweWDM density zvinoita kuti network dzive nyore uye dzine simba rakawanda. Tsvagiridzo pamusoro pemafiber echizvarwa chinotevera, kuderedza latency, uye kushanda zvakanaka kwesimba iri kuenderera mberiwo, tichifunga nezvekuwedzera kuri kuita zvinodiwa nenzvimbo dzedata uye network dzepasi rose.
Pakupedzisira, tambo dze fiber optic dzinopfuura kungova "tambo dzeinternet," asi ihwaro hwekushandurwa kwemazuva ano kwedhijitari. Kune kutaurirana kure, fiber optics inopa musanganiswa wakakodzera wesimba rakakwirira, kugadzikana kwakanyanya, uye kushanda zvakanaka kusingaenzaniswi nedzimwe nhau. Nekuvandudzwa kwezvivakwa zve fiber optic zvakaenzana uye zvakarongwa, kubatana kwemhando yepamusoro kunogona kusvika kunzvimbo dzakawanda, zvichitsigira dzidzo, hupfumi, uye mabasa everuzhinji nenzira inoenderera mberi.
Kana muchida, ndinogona kugadzirisa chinyorwa ichi kuti chienderane nemaitiro esainzi (ane mareferensi), maitiro anozivikanwa emablog, kana kuwedzera zvikamu zvakakosha zvakaita se "submarine cables", "link budget calculations", kana kuti "EDFA vs OEO regeneration differences" sezvinodiwa.
