Ingave iri kubatanidza nharaunda kana makondinendi akapararira, kumhanya uye kururama ndizvo zvinhu zviviri zvakakosha kune fiber optic networks dzinotakura kutaurirana kwakakosha. Vashandisi vanoda FTTH links dzinokurumidza uye 5G mobile connections kuti vawane telemedicine, autonomous vehicles, video conferencing uye mamwe maapplication anorema bandwidth. Nekubuda kwenhamba huru yedata centers uye kukura nekukurumidza kwe artificial intelligence uye machine learning, pamwe nekumhanya kwenetwork nekukurumidza uye rutsigiro rwe800G zvichikwira, zvese fiber hunhu hwave hwakakosha.
Zvichienderana neITU-T G.650.3 standard, optical time domain reflectometer (OTDR), optical loss testing device (OLTS), chromatic dispersion (CD), uye polarization mode dispersion (PMD) tests zvinodiwa kuti paitwe comprehensive fiber identification uye kuve nechokwadi chekuti network inoshanda zvakanaka. Saka, kutarisira maCD values chinhu chakakosha pakuona kuti transmission inoenderana uye inoshanda zvakanaka.
Kunyangwe CD iri hunhu hwechisikigo hwemafiber ese e optical, inova kuwedzera kwe broadband pulses pamusoro penzvimbo refu, zvichienderana neITU-T G.650.3 standard, kupararira kunova dambudziko kune mafiber e optical ane mwero wekutumira data unodarika 10 Gbps. CD inogona kukanganisa zvakanyanya kunaka kwemasaini, kunyanya mumasisitimu ekukurukurirana anomhanya zvakanyanya, uye kuyedza ndiyo kiyi yekugadzirisa dambudziko iri.
Chii chinonzi CD?
Kana kupenya kwechiedza chewavelength dzakasiyana-siyana kuchipararira mu optical fibers, kupararira kwechiedza kunogona kukonzera kupindirana kwepulse nekukanganisika, zvichizopedzisira zvaita kuti kunaka kwechiratidzo chinotumirwa kuderera. Kune mhando mbiri dzekupararira: kupararira kwezvinhu uye kupararira kwewaveguide.
Kupararira kwezvinhu chinhu chiripo mumhando dzese dzemafiber e optical, izvo zvinogona kukonzera kuti mawavelength akasiyana afambe nekumhanya kwakasiyana, zvichizoguma nekusvika kune transceiver iri kure panguva dzakasiyana.
Kupararira kwewaveguide kunoitika muchimiro chewaveguide chemafiber e optical, uko masaini e optical anopararira nepakati nepakati pemafiber, ane ma indices akasiyana e refractive. Izvi zvinoguma nekuchinja kwedhayamita yemode field uye kuchinja kwespeed yesignal pawavelength yega yega.
Kuchengetedza CD yakati kwakakosha kudzivirira kuitika kwemamwe matambudziko asiri emutsara, saka hapana CD yakanaka. Asi CD inofanira kudzorwa padanho rinogamuchirika kudzivirira kukanganisa kwakaipa pakuvimbika kwesignali uye kunaka kwebasa.
Chii chinokonzera kupararira kwemhando yefiber?
Sezvambotaurwa, CD imhando yechisikigo ye fiber ye optical, asi rudzi rwe fiber runoita basa rakakosha mukutarisira CD. Vashandi ve network vanogona kusarudza fiber dze "natural" kana fibers dzine dispersion curves dzakakanganiswa kuderedza simba reCD mukati mehurefu hwakatarwa hwe wavelength.
Fiber inonyanya kushandiswa mu network dzanhasi iITU-T G.652 fiber yakajairika ine kupararira kwechisikigo. ITU-T G-653 zero dispersion shifted fiber haitsigire kutumirwa kweDWDM, nepo G.655 non-zero dispersion shifted fiber ine CD yakaderera, asi yakagadziriswa kwenguva refu uye inodhurawo zvakanyanya.
Pakupedzisira, vashandisi vanofanira kunzwisisa mhando dzefiber optics dziri muma network avo. Kana akawanda ema optical fibers ari standard G.652, asi mamwe ari mamwe marudzi ema fibers, saka kana maCD ari muma links ese asingaonekwe, mhando yebasa ichakanganiswa.
Mukupedzisa
Kupararira kweChromatic kuchiri dambudziko rinofanira kugadziriswa kuti pave nechokwadi chekuti masisitimu ekukurukurirana anomhanya zvakanyanya akavimbika uye anoshanda. Hunhu hwefiber uye kuyedzwa ndizvo zvakakosha pakugadzirisa kuoma kwekupararira, zvichipa ruzivo kune matekiniki nemainjiniya kuti vagadzire, vashandise, uye vagadzirise zvivakwa zvinotakura kutaurirana kwakakosha pasi rose. Nekuvandudzwa kuri kuramba kuchiitwa uye kuwedzera kwenetwork, Softel icharamba ichiita zvitsva uye ichipa mhinduro kumusika, ichitungamira nzira mukutsigira kushandiswa kwetekinoroji yepamusoro.
Nguva yekutumira: Kurume-20-2025