O feso'ota'iga alava mata, o se tasi o poutu autu o feso'ota'iga fa'aonaponei, e iai sona sao taua i feso'otaiga fa'aonaponei.
O le atina'eina o feso'ota'iga fiber opitika e mafai ona fa'amoemoeina mai vaega nei.
1. Ina ia mafai ona iloa le faʻateleina o faʻamatalaga faʻamatalaga ma faʻasalalauga mamao, e tatau ona faʻaogaina le fiber tasi-mode ma le maualalo o le gau ma le faʻasalalau maualalo.I le taimi nei, G.652 masani tasi-mode opitika fiber o loʻo faʻaaogaina lautele i fesoʻotaʻiga fesoʻotaʻiga laina uaea opitika.E ui lava o lenei fiber e itiiti ifo le gau o le 1.55 μm, o loʻo i ai se tau faʻasalalau tele e tusa ma le 18 ps / (nm.km).Fai mai pe a faʻaaogaina le fiber masani e tasi-mode i le galu umi o le 1.55 μm, e le lelei le faʻatinoga o felauaiga.
Afai o le zero-dispersion wavelength e suia mai le 1.31 μm i le 1.55 μm, e taʻua o le dispersion-shifted fiber (DSF), ae pe a faʻaaogaina lenei fiber ma erbium-doped fiber amplifier (EDFA) i se faʻaogaina o le tele o galu (WDM) , o le a Ona o le le faʻaogaina o le fiber, e fa-galu faʻafefiloi e tupu, lea e taofia ai le faʻaaogaina masani o le WDM, o lona uiga e le lelei le faʻasalalauina o le fiber zero mo le WDM.
Ina ia mafai ona faʻaogaina lelei le tekinolosi fesoʻotaʻiga fiber optical i le WDM system, e tatau ona faʻaitiitia le faʻasalalauina o le fiber, ae e le faʻatagaina le zero.O le mea lea, o le fiber fou e tasi-mode ua mamanuina e taʻua o le non-zero dispersion fiber (NZDF), lea e amata mai i le 1.54 ~ O le tau faʻasalalau i le 1.56μm laina e mafai ona tausia ile 1.0 ~ 4.0ps / (nm.km), lea e aloese ai. le nofoaga fa'asalalauina leai, ae fa'atumauina se tau fa'asalalau la'ititi.
E tele fa'ata'ita'iga ua lipotia fa'alaua'itele i le fa'aogaina o le NZDF's EDFA/WDM fa'asalalauga.
2.Photonic masini faʻaaogaina i faiga fesoʻotaʻiga fiber optical ua faʻatupuina tele foi i tausaga talu ai nei.Ina ia faʻamalieina manaʻoga o faiga WDM, tele-wavelength malamalama faʻapogai masini (MLS) ua atiaʻe i tausaga talu ai nei.E fa'atonuina le tele o fa'alava leisa i se fa'asologa ma faia ai se vaega fa'apipi'i tu'ufa'atasia ma se fetu fa'apipi'i.
Mo le mauaina o le iuga o le faiga o fesoʻotaʻiga fiber opitika, o lona photodetector ma preamplifier e masani ona atiaʻe i le itu o le maualuga-saosaoa poʻo le tali lautele.PIN photodiodes e mafai lava ona ausia manaʻoga pe a uma ona faʻaleleia.Mo photodetectors broadband o loʻo faʻaaogaina i le galu umi-umi 1.55μm, o se uʻamea semiconductor-metal photodetection tube (MSM) ua atiaʻe i tausaga talu ai nei.Fa'ata'ita'i fa'ata'ita'i fa'asoa fa'ata'ita'i galu femalaga'i.E tusa ai ma lipoti, e mafai e lenei MSM ona iloa le 78dB o le 3dB frequency bandwidth mo 1.55μm galu malamalama.
E ono suia le fa'amalama muamua a le FET i se transistor mobility eletise (HEMT).O loʻo lipotia mai o le 1.55μm optoelectronic receiver e faʻaaoga ai le MSM detector ma le HEMT pre-amplified optoelectronic integration (OEIC) faʻagasologa o loʻo i ai le faʻasologa o le 38GHz ma e faʻamoemoe e oʻo atu i le 60GHz.
3. O le faʻaogaina o le PDH faʻaogaina i le faʻaogaina o le fiber fiber ua le mafai ona faʻafetaui i le atinaʻeina o fesoʻotaʻiga faʻaonaponei.O le mea lea, o le atinaʻeina o fesoʻotaʻiga fiber opitika agaʻi i upega tafaʻilagi ua avea ma tulaga le maalofia.
O le SDH ose fa'avae fou o feso'ota'iga feso'ota'iga fa'atasi ma uiga fa'avae o feso'otaiga.O se feso'ota'iga fa'amatalaga fa'amatalaga e tu'ufa'atasia ai le tele o feso'ota'iga, feso'ota'iga laina ma le fesuia'i galuega ma e malosi le fa'afoega o feso'otaiga.O loʻo faʻaaogaina lautele i le taimi nei.