Nekuvandudzwa kwetiweki uye kufambira mberi kwetekinoroji, vazhinji vanogadzira fiber optic component vakaonekwa mumusika, vachiedza kutora chikamu chenetiweki yenyika.Sezvo vagadziri ava vachigadzira zvinhu zvakasiyana-siyana, chinangwa chavo ndechekugadzira zvikamu zvemhando yepamusoro uye zvinoenderana kuitira kuti vatengi vakwanise kusanganisa zvinhu zvakasiyana kubva kuvagadziri vakasiyana.Izvi zvinonyanya kukonzerwa nekunetsekana kwemari, sezvo nzvimbo zhinji dzedata dzichigara dzichitsvaga mhinduro dzinodhura dzekushandisa mumatiweki avo.
Optical transceiverschikamu chakakosha chefiber optic network.Vari kushandura uye kutyaira fiber optic tambo kuburikidza nayo.Iwo anoumbwa nezvikamu zviviri zvikuru: transmitter uye inogamuchira.Kana zvasvika pakugadzirisa uye kugadzirisa matambudziko, zvakakosha kuti ukwanise kufanotaura, kuyedza, uye kuona kuti matambudziko anogona kana kuitika kupi.Dzimwe nguva, kana iyo yekubatanidza ikasasangana neinotarirwa bit kukanganisa mwero, hatigone kutaura pekutanga kuona kuti ndeipi chikamu chekubatanidza chiri kukonzera dambudziko.Inogona kunge iri tambo, transceiver, inogamuchira kana zvese zviri zviviri.Kazhinji, iyo yakatarwa inofanirwa kuvimbisa kuti chero anogamuchira achashanda nemazvo nechero yakaipisisa-yekutumira, uye zvinopesana, chero transmitter ichapa chiratidzo chemhando yakakwana kuti inotorwa chero yakaipisisa-inogamuchira.Mamiriro ezvinhu akaipisisa anowanzova chikamu chakaoma kutsanangura.Nekudaro, pane kazhinji nhanho ina dzekuyedza iyo inotumira uye inogamuchira zvikamu zve transceiver.
Paunenge uchiyedza iyo transmitter chikamu, kuyedza kunosanganisira kuyedza iyo wavelength uye chimiro chechiratidzo chekubuda.Pane matanho maviri ekuyedza transmitter:
Kubuda kwechiedza chemuchinjiziri kunofanirwa kuyedzwa nerubatsiro rwe akati wandei emhando yemhando metrics, senge mask yekuyedza, optical modulation amplitude (OMA), uye kupera kwechiyero.Edza uchishandisa dhizaini yemeso masiki yekuyedza, yakajairika nzira yekuona transmitter waveform uye nekupa ruzivo nezve yakazara transmitter kuita.Mune dhayagiramu yeziso, musanganiswa wese wemapateni edata anoiswa pamusoro peumwe neumwe pane imwe nguva axis, kazhinji isingasviki maviri bit nguva yakafara.Iyo bvunzo yekugamuchira chikamu ndiyo yakanyanya kuomarara chikamu chemaitiro, asi kune zvakare maviri ebvunzo matanho:
Chikamu chekutanga chekuyedzwa ndechekusimbisa kuti mugamuchiri anogona kutora iyo yakashata mhando chiratidzo uye kuishandura.Izvi zvinoitwa nekutumira hurombo husina kunaka chiedza kune anogamuchira.Sezvo ichi chiri chiratidzo chemaziso, chinofanirwa kuenzaniswa uchishandisa jitter uye optical simba zviyero.Chimwe chikamu chebvunzo ndechekuedza kuisa magetsi kune anogamuchira.Munguva iyi, mhando nhatu dzebvunzo dzinofanirwa kuitwa: kuyedzwa kwemaski yeziso kuona kuvhurwa kweziso rakakura, kuyedza jitter kuyedza mamwe marudzi ejitter huwandu uye jitter kushivirira kuyedzwa, uye kuyedza kugona kweanogamuchira kuteedzera jitter mukati mayo. loop bandwidth.
Nguva yekutumira: Sep-13-2022