Taw qhia rau WDM - Txuj Ci - Shenzhen HTFuture Co., Ltd

Txos

Kev sib kis tau ib ntus ntawm ob lossis ntau tshaj qhov sib txuas ntawm lub koob yoj hluav taws xob los ntawm cov sib txawv ntawm cov kab hluav taws xob nyob hauv tib lub fiber ntau yog hu ua optical wavelength division multiplexing (WDM) thev naus laus zis.

Rov qab siv hom

WDM kho qhov muag suav nrog qhov sib faib zaus ntau zaus thiab WDM.

Optical zaus faib multiplexing (FDM) thev naus laus zis thiab kho qhov muag wavelength faib multiplexing (WDM) thev naus laus zis tsis muaj qhov sib txawv, vim tias lub teeb yoj yog ib feem ntawm electromagnetic yoj. Qhov ntau zaus ntawm lub teeb thiab wavelength muaj kev sib cav sib xws. Feem ntau, kev faib tawm ntawm cov zaus kho qhov muag yog qhov kev hloov kho ntawm cov khoom siv ntau zaus. Optical raws muaj qhov ntom ntom. Wavelength faib multiplexing (WDM) yog hais txog kev sib faib ua ntu zuj zus ntawm cov kab ke kho qhov muag, cov kab ke sib txuas tau sib nrug deb, thiab txawm nyob hauv qhov sib txawv ntawm lub fiber.

Cov Qauv

Wavelength faib multiplexer thiab demultiplexer (tseem hu ua ke yoj / sib cais) tau muab tso rau ntawm ob qhov kawg ntawm cov kho qhov muag kom paub qhov txuas thiab sib cais ntawm lub teeb sib txawv. Lub hauv paus ntsiab lus ntawm cov khoom siv ob yog tib yam.

WDM

Lub ntsiab hom optical wavelength faib multiplexers yog fused rub-cone hom, nruab nrab zaj duab xis hom, grating hom thiab planar hom.

Kev ntsuas ntsuas

Tus yam ntxwv tseem ceeb yog qhov tsis txaus ua kom tsis tau thiab kev rho tawm qib.

Vim tias siv WDM cov khoom siv hauv qhov khoos phis tawm kho qhov muag, qhov nce ntawm qhov kho qhov muag txuas tsis raug hu ua WDM kev tso nkag mus. Thaum nthwv dej ntu 1, 2 kis los ntawm tib lub fiber ntau, qhov sib txawv ntawm lub zog ntawm lub tswv yim 2 hauv qhov sib cais thiab lub zog sib xyaw hauv cov zis fiber ntau ntawm 1 yog hu ua cov degree ntawm kev rho tawm.

Cov yam ntxwv& Qhov zoo ntawm kho qhov muag wavelength faib multiplexer.

Ua tag nrho kev siv ntawm cov pab pawg ntawm cov xov paj hluav taws xob kom tsawg, nce lub peev xwm kis ntawm optical fiber, kom lub cev kev txwv ntawm cov ntaub ntawv xa mus los ntawm cov hluav taws xob fiber ntau tau muab ob npaug rau ob peb zaug. Tam sim no, peb tsuas yog siv cov ntu me me ntawm qhov kho qhov muag qis-poob spectrum (1310nm-1550nm). WDM tuaj yeem siv tag nrho ntawm qhov loj loj bandwidth ntawm ib hom kho qhov muag fiber ntau, txog 25THz, nrog kev xa xov kis txaus.

Nws muaj lub peev xwm los xa ob lossis ntau dua asynchronous cov lus qhia hauv tib lub fiber ntau kho qhov muag, uas ua tau zoo rau kev sib raug zoo ntawm cov teeb liab digital thiab cov teeb liab analog, ywj siab ntawm cov ntaub ntawv tus nqi thiab cov kev hloov kho hom, thiab tuaj yeem tawm lossis ntxiv rau hauv cov channel yooj ywm hauv nruab nrab ntawm kab.

Txog cov tsim hluavtaws fiber ntau, tshwj xeeb tshaj yog thaum ntxov tso cov tub ntxhais ntawm cov xov tooj hluav taws xob cable, ntev npaum li qhov qub system muaj lub zog pub nyiaj, tuaj yeem muaj peev xwm txuas ntxiv, kom ua tiav cov xov tooj ntawm ib-seem lossis ob kis kev xa xov tsis muaj qhov kev hloov pauv loj rau cov qauv qub, nrog muaj qhov hloov khov kho.

Vim tias qhov kev txo qhov loj hauv kev siv fiber ntau, zoo heev txo nqi kev tsim kho, vim muaj cov xov tooj ntawm cov optical fiber ntau, thaum ua tsis tiav, nws tseem ceev thiab yooj yim kom rov qab tau.

Kev sib koom ntawm cov khoom siv kho qhov muag tsawg dua ua rau txo tus nqi ntawm kev xa cov cim ntau ntau lossis ntxiv cov kev pabcuam tshiab. Cov cuab yeej nquag hauv cov kab ke tau muab txo ntau heev, yog li txhim kho txoj kev cia siab ntawm qhov system.

Cov xwm txheej qub

Vim lub siab xav tau ntawm optical WDM rau kev kho qhov muag, kho qhov muag thiab lwm yam khoom siv, kev siv tshuab yog qhov nyuaj rau qee yam, thiab daim ntawv thov ntawm cov roj carbon fiber ntau optical cable tsis tshwm sim tshwj xeeb rau cov kev tshaj tawm hauv xov tooj ib txwm thiab TELEVISION kis tau tus mob. , yog li cov ntawv thov ua WDM tseem tsis tau muaj ntau. Txawm li cas los xij, nrog kev txhim kho ntawm cable TV ua ke cov kev pabcuam, kev xav tau ntau ntxiv rau cov bandwidth network, kev siv txhua yam kev pabcuam xaiv, network txhim kho kev siv nyiaj txiag kev xav, thiab lwm yam, cov yam ntxwv thiab qhov zoo ntawm WDM maj mam tawm hauv CATV qhov kev xa xov, qhia cov kev thov dav dav, thiab tseem yuav cuam tshuam rau kev tsim CATV network qauv.