Munyika yekutaurirana kwefiber optic, kusarudzwa kwewavelength yechiedza kwakafanana nekugadzirisa mafrequency eredhiyo uye kusarudzwa kwechiteshi. Chiratidzo chinogona kutumirwa zvakajeka uye zvakadzikama chete nekusarudza "chiteshi" chakakodzera. Sei mamwe ma module e optical aine daro rekutumira remamita mazana mashanu chete, nepo mamwe achigona kureba kwemakiromita mazana? Chakavanzika chiri mu 'ruvara' rwechiedza ichocho - kunyanya, wavelength yechiedza.
Muma network ekukurukurirana kwemaziso emazuva ano, ma module e optical ane ma wavelength akasiyana anoita mabasa akasiyana zvachose. Ma wavelength matatu epakati e 850nm, 1310nm, uye 1550nm anoumba hwaro hwekutaurirana kwe optical, nekupatsanurwa kwakajeka kwebasa maererano nedaro rekutumirwa, maitiro ekurasikirwa, uye mamiriro ekushandiswa.
1. Sei tichida mawavelength akawanda?
Chikonzero chikuru chekusiyana kwema wavelength muma optical modules chiri mumatambudziko maviri makuru mukufambiswa kwe fiber optic: kurasikirwa nekupararira. Kana ma optical signals akatumirwa muma optical fibers, simba rinodzikira (kurasikirwa) rinokonzerwa nekunyudzwa, kupararira, uye kubuda kwechinhu chacho. Panguva imwe chete, kumhanya kusina kuenzana kwezvikamu zvakasiyana zve wavelength kunokonzera kuwedzera kwe signal pulse (kupararira). Izvi zvakakonzera mhinduro dze multi wavelength:
•850nm bhendi:Inonyanya kushanda mu multimode optical fibers, ine daro rekutumira rinowanzova mazana mashoma emamita (senge ~ mamita 550), uye ndiyo simba guru rekutumira kure kure (senge mukati medata centers).
•Bhendi re1310nm:inoratidza hunhu hwakaderera hwekupararira mumafibers akajairwa emodhi imwe chete, ine daro rekutumira rinosvika makiromita makumi (senge makiromita makumi matanhatu), zvichiita kuti ive musimboti wekutumira daro repakati.
•Bhendi re1550nm:Nekuderera kweattenuation rate (inenge 0.19dB/km), daro redzidziso rinogona kudarika makiromita zana nemakumi mashanu, zvichiita kuti ive mambo weattenuation inofamba kure uye kunyange kure zvakanyanya.
Kukwira kwetekinoroji yewavelength division multiplexing (WDM) kwakawedzera zvakanyanya kugona kwefibers dze optical. Semuenzaniso, single fiber bidirectional (BIDI) optical modules dzinoita bidirectional communication pane single fiber nekushandisa ma wavelength akasiyana (akadai se1310nm/1550nm combination) pamagumo ekutumira nekugamuchira, zvichichengetedza zvakanyanya fiber resources. Tekinoroji yepamusoro yeDense Wavelength Division Multiplexing (DWDM) inogona kuita dense wavelength spacing (yakadai se100GHz) mumabhendi chaiwo (akadai seO-band 1260-1360nm), uye single fiber inogona kutsigira makumi kana mazana ema wavelength channels, zvichiwedzera kugona kwe transmission kusvika paTbps level uye zvichiburitsa zvizere kugona kwefiber optics.
2. Nzira yekusarudza nesainzi urefu hwema modules e optical?
Kusarudzwa kwewavelength kunoda kutariswa kwakazara kwezvinhu zvinotevera zvakakosha:
Kureba kwekutumira:
Kureba kupfupi (≤ 2km): zviri nani 850nm (multimode fiber).
Kureba kwepakati (10-40km): kwakakodzera 1310nm (fiber yemhando imwe chete).
Kureba (≥ 60km): 1550nm (fiber yemhando imwe chete) inofanira kusarudzwa, kana kushandiswa pamwe chete ne optical amplifier.
Kukwanisa kunodiwa:
Bhizinesi remazuva ose: Mamodule ewavelength akagadziriswa akakwana.
Kukwanisa kukuru, kutumirwa kwemagetsi kwakawanda: Tekinoroji yeDWDM/CWDM inodiwa. Semuenzaniso, sisitimu ye100G DWDM inoshanda muO-band inogona kutsigira nzira dzakawanda dzewavelength dzakakura.
Kufunga nezvemutengo:
Module yewavelength yakagadziriswa: Mutengo wekutanga weyuniti wakaderera, asi mhando dzakawanda dzewavelength dzezvikamu zvespare dzinofanira kuiswa.
Module ye wavelength inogadziriswa: Mari yekutanga yakawedzerwa, asi kuburikidza nekugadzirisa software, inogona kufukidza ma wavelength akawanda, kurerutsa manejimendi ezvikamu zvespare, uye nekufamba kwenguva, kuderedza kuoma kwekushanda nekugadzirisa uye mari.
Mamiriro ekushandisa:
Kubatana kweData Center (DCI): Mhinduro dzeDWDM dzine simba shoma uye dzine density yakawanda ndidzo dzakakurumbira.
5G fronthaul: Nekuda kwemutengo wakakwira, kunonoka, uye kuvimbika, mamodule eBIDI (single fiber bidirectional modules) akagadzirwa neindasitiri ndiwo anowanzo sarudzwa.
Network yepaki yebhizinesi: Zvichienderana nezvinodiwa padaro uye bandwidth, mamodule eCWDM ane simba shoma, daro repakati kusvika kupfupi kana mamodule ewavelength akagadzika anogona kusarudzwa.
3. Mhedziso: Kushanduka-shanduka kwetekinoroji uye Kufunga Nezveramangwana
Tekinoroji ye optical module iri kuramba ichichinja-chinja nekukurumidza. Midziyo mitsva yakaita se wavelength selective switches (WSS) uye liquid crystal on silicon (LCoS) iri kutungamira kukura kwe optical network architectures dzinochinjika zviri nyore. Kuvandudzwa kwakanangana nemabhendi chaiwo, akadai seO-band, kuri kugara kuchivandudza mashandiro, zvakaita sekuderedza zvakanyanya kushandiswa kwemodule ukuwo kuchichengetedza margin yakakwana ye optical signal-to-noise ratio (OSNR).
Mukugadzirwa kwenetiweki mune ramangwana, mainjiniya havangodi chete kuverenga daro rekutumira magetsi nemazvo pavanenge vachisarudza marefu emagetsi, asiwo kuongorora zvizere kushandiswa kwesimba, kuchinjika kwekupisa, huwandu hwemagetsi anoshandiswa, uye mari yekushandisa nekuchengetedza. Ma module emagetsi akavimbika anogona kushanda zvakanaka kwemakiromita makumi munzvimbo dzakaoma (dzakadai se -40 ℃ kutonhora kwakanyanya) ari kuva rutsigiro rwakakosha kune nzvimbo dzakaoma dzekushandisa magetsi (dzakadai senzvimbo dziri kure).
Nguva yekutumira: Gunyana-18-2025