Paub ntau ntxiv txog qhov sib piv ntawm G.652 thiab G.655 ib hom-hom kho qhov muag

Tus muab lub wavelength, ib qho fiber ntau uas tsuas txhawb ib qho kev faib tawm hauv txhua hom polarization directionis hu ua ib hom fiber ntau. Raws li ITU-T cov lus pom zoo, ib hom fiber ntau tuaj yeem muab faib ua G.652 (kev tawg tsis muaj txav ntawm ib hom fiber ntau), G.653 (dispersion hloov mus rau fiber ntau), G.654 (cutoff wavelength hloov fiber), G 655 (non-zero dispersion hloov ua fiber ntau), G.656 (qis qis tsis yog xoom dispersion hloov pauv fiber ntau), thiab G.657 (khoov khoov-fiber ntau) rau hom fiber ntau-hom. Ntawm lawv, G.652 thiab G.655 ib hom fiber ntau yog cov hom hom ntau. Kab lus no yuav piav qhia qhov kev faib tawm thiab qhov sib txawv ntawm ob hom fiber ntau hauv qhov nthuav dav.

G.652 ib hom fiber ntau tau muab faib ua plaub hom: G.652A, G.652B, G.652C, thiab G.652D, nrog cov tub ntxhais tseem ceeb ntev li 8-10μm.

G.655 ib hom fiber ntau tau muab faib ua tsib hom, uas yog G.655.A, G.655.B, thiab G. .655.C, G.655.D thiab G.655.E ib hom fiber ntau. Ntawm lawv, G.655.C, G.655.D thiab G.655.E ib hom fiber ntau yog qhov peb tau siv ntau hom fiber ntau. Txij li cov dispersion ntawm G.655 ib hom fiber ntau ntawm 1550nm ze rau xoom tab sis tsis sib npaug ntawm xoom, nws tseem hu ua tsis-xoom dispersion hloov pauv fiber ntau lossis NZDSF (NonZero Dispersion Hloov Fiber).

NZDSF tuaj yeem muab faib ua (-D) NZDSF thiab (+ D) NZDSF, uas sawv cev rau qhov tsis zoo thiab qhov zoo ntawm qhov nthwv dej, raws li qhia hauv daim duab hauv qab no:

Piv nrog rau G.652 ib hom fiber ntau, G.655 ib hom fiber ntau muaj qis dua kev faib tawm hauv C-band (1530nm ~ 1565nm), uas qhov kev ua haujlwm ntawm cov kho qhov muag tau tuaj yeem tawm mus rau qhov huab, thiab qhov chaw tseem ceeb. ntawm cov fiber ntau loj dua. Raws li kev txhim kho hloov dua tshiab-hloov cov hom fiber ntau, G.655 ib hom fiber ntau muaj peev xwm sib npaug plaub nthwv dej sib xyaw thiab lwm cov kev cuam tshuam tsis zoo. G.655 ib hom fiber ntau uas txhawb kev sib nrug ntev dua thiab lub peev xwm loj dua tuaj yeem ua tau raws li cov kev xav tau ntawm ntom ntab faib hluav taws xob sib faib (DWDM) kis.

G.652 thiab G.655 ib hom fiber ntau: xaiv li cas?

G.652 ib hom fiber ntau feem ntau yog siv hauv cov chaw sib txuas hauv cheeb tsam, thaj chaw thaj chaw, nkag cov tes hauj lwm, thiab coarse wavelength division multiplexing kis. Ntawm lawv, wavelength faib multiplexing kis yog xaiv yig thiab txuag. Feem ntau, G.652 ib hom fiber ntau uas tsis xav tau lub teeb liab kho qhov muag tau siv rau kev xa xov luv luv. G.655 ib hom fiber ntau yog qhov thib ob hom fiber ntau hauv cov av sib txuas. Nws lub ntsiab yog tsis tshua muaj chromatic dispersion (suav nrog chromatic dispersion thiab hom polarization dispersion). Nws feem ntau muab tso rau hauv kev sib kis ntev thiab kev sib cais ntaj sib kis sib kis kab sib txuas.

G.652 ib hom fiber ntau thiab nws kho dua tshiab G.657 ib hom fiber ntau yog cov qauv ib hom fiber ntau nrog tus nqi qis dua, uas zoo heev rau kev xa xov luv nrog qhov kis tau tus mob tsawg dua 10Gbps. Yog tias koj xav tau qhov kis tau tus mob siab dua 10Gbps lossis qhov ua tau zoo dua qhov kev xa mus ntev, G.655 ib hom fiber ntau yog qhov kev xaiv zoo uas tsis xav txog tus nqi. Cov kab ntawv hauv qab no teev cov kev siv ntawm G.652 thiab G.655 ib hom fiber ntau hauv cov coarse wavelength faib multiplexing lossis ntom ntuag faib faib ntau yam sib kis: