Dab tsi yog AWG?

Tam sim no, muaj peb hom DWDM thev naus laus zis, uas yog ua raws li AWG arrayed waveguide grating (AWG), dielectric zaj duab xis lim (TFF) thiab fiber Bragg grating (FBG). AWG yog ib hom khoom siv planar waveguide. Nws yog ib qho array waveguide grating npuag ntawm nti substrate los ntawm PLC thev naus laus zis. Piv nrog FBG thiab TTF, AWG muaj ntau qhov zoo, xws li kev sib koom ua ke siab, ntau txoj hauv kev, kev nkag mus tsis tau tsawg thiab cov khoom lag luam yooj yim.

Athermal aawg muaj lub zoo thermal stability, txhim kho qhov tseeb ntawm ITU daim phiaj teev rau hauv itu-g694.1, thiab muaj qhov kev xa xov kis tau zoo dua, yog li nws tuaj yeem siv rau hauv cov liaj teb siab, xws li thaj chaw hauv cheeb tsam network thiab lub sijhawm ntev DWDM optical kev sib txuas lus fiber ntau. Cov yam ntxwv PMD zoo dua (GG lt; 0.5ps) ua rau nws ua tau zoo dua li qhov xav tau ntawm 40g / 100g DWDM kev xa xov hluav taws xob thiab ua tau raws li PMD kam rau ntawm lub siab ceev.

Aawg tsis xav tau kev tswj hluav taws xob sab nraud. Raws li cov khoom siv passive ntshiab, aawg siv cov cuab yeej them nyiaj rau tus kheej los tswj cov ntsuas kub sab nraud nrog kev sib raug zoo, thiab lub yoj nruab nrab tsis sib haum rau qhov hloov ntawm qhov ntsuas kub sab nraud.

Thov

Cov kev ua haujlwm yooj yim ntawm AWG yog wavelength sib xyaw / sib cais, tuaj yeem paub txog wavelength multiplexing / demultiplexing, tso cov kab / demultiplexing, wavelength routing, etc. Los ntawm kev sib txuas nrog kev hloov kho qhov muag, yoj yoj tuaj yeem xaiv. AWG tseem tuaj yeem siv tau nrog cov ntau lub ntsej muag laim ci laser los ua cov kab ntau sib kis.

1. Multiplexer / demultiplexer

2. Wavelength router

3. Optical ntxiv poob multiplexer

4. Ntau lub teeb kis ntawm lub teeb

5. Optical wavelength selector (ows)

6. ntau tus wavelength txais

7. Ntau channel sib npaug

Qhov kub AWG siv qhov kev tswj cua sov thiab lub rhaub ua kom AWG nti nyob rau hauv ib puag ncig qhov kub li ntawm 70 ℃ thiab ua kom lub yoj yoj ntawm txhua cov channel ruaj khov. Qhov tsis yog thermal AWG txais yuav kev tsim tshwj xeeb thiab thev naus laus zis, uas ua rau lub yoj tsis hloov nrog kev hloov ntawm qhov kub thiab txias sab nraud. Nws tsis siv lub tshuab ua cua sov thiab tswj tsis ua haujlwm Circuit Court, thiab tsis xav tau lub koomhaum pabcuam Circuit Court. Yog tias tsis muaj kev tswj hwm sab nraud, ua cov khoom siv hluav taws xob ntshiab, nws siv lub tshuab them nyiaj rau tus kheej los tswj cov ntsuas kub rau sab nraud kom haum. Lub hauv nruab nrab ntu tsis yog rhiab rau qhov hloov ntawm sab nraud ntsuas kub. Nws tuaj yeem siv dav hauv nroog thaj chaw network thiab nyob deb DWDM kev sib txuas lus fiber ntau.

Heatless AWG module raws li arrayed waveguide grating thev naus laus zis, uas tsis tas yuav khoom siv fais fab ntxiv lossis tswj ntsuas kub. Nws muaj cov yam ntxwv ntawm poob qis, polarization dependant poob qis thiab qis tus ceg ntoo. Nws muaj cov huab cua zoo nyob hauv chav ua haujlwm kub txij li - 40 ℃ txog 85 ℃. Cov qauv no tseem tuaj yeem ntim rau 19 nti hlau thawv. Nyob rau tib lub sijhawm, nws muaj peev xwm muab lub teeb liab kho qhov muag hluav taws xob saib xyuas chaw nres nkoj thiab lwm qhov chaw nres nkoj nthuav tawm hauv qhov module.

Nrog rau kev tsim kho hnyav ntawm 5g, cov neeg siv' cov tseev kom muaj bandwidth yuav ntau dua thiab siab dua. Cov neeg teb xov tooj yuav tsum txhim kho cov ntaub ntawv sib kis tsis tu ncua, txhim kho kev sib kis, thiab txo cov nqi khiav lag luam. Ntawm lawv, nquag WDM-PON cov txheej txheem yog qhov nyuaj rau xa mus vim nws cov nqi siab, thaum lub sijhawm pass WDM-PON muaj ntau qhov chaw thov vim nws tus nqi qis, tsis muaj lub zog hluav taws xob thiab kev teeb tsa yooj yim. Qhov kub tsis txaus AWG yuav siv dav vim tias nws loj dua tus naj npawb channel, ntau qhov chaw ntom nti, thiab tsis tas yuav tso siab rau kev siv fais fab lossis tswj ntsuas kub.

Hauv kev tsim kho ntawm loj muaj peev xwm loj kis network, DWDM (optical nthwv dej sib faib sib faib sib xyaw ua ke) ua lub cev loj ntawm lub cev ntev-lub cev kis tau tus mob network vim nws qhov zoo ntawm lub peev xwm loj, ntau yam kev pabcuam thiab muaj txiaj ntsig zoo. Hauv DWDM kev tsim kho, ib feem ntawm cov phiaj xwm phiaj xwm tsis muaj lub zog hluav taws xob (xws li WDM-PON). Athermal arrayed waveguide nee (AWG) yog hom tshiab ntawm cov khoom siv dhau passive, uas yog tsim los ua kom tau raws li qhov xav tau tiag tiag ntawm daim teb thov.

Tus qauv AWG niaj hnub no muaj nyob hauv Daim duab 3, uas muaj cov tswv yim ntawm waveguide, ib lub hnub qub txuas ntxiv (FPR hauv daim duab), ib pawg ntawm cov txheej txheem waveguides, ib lub hnub qub txuas txuas ntxiv thiab kaum ob ntawm cov tso tawm waveguides.

Arrayed waveguide gratings feem ntau siv hauv optical (DE) multiplexers hauv WDM systems. Cov cuab yeej no tuaj yeem ua ke ntau lub teeb ntawm lub teeb rau hauv ib qho fiber ntau, yog li txhim kho cov kev tshaj tawm ntawm cov khoom siv fiber ntau kho qhov muag.

Arrayed waveguide grating (AWG) yog qhov tseem ceeb ntawm DWDM Network uas tau tsim kho sai heev. AWG tuaj yeem tau txais ntau qhov ntau thiab tsawg ntawm wavelengths thiab channels, paub txog qhov sib txuam thiab demultiplexing ntawm kaum rau ntau pua wavelengths, thiab tuaj yeem tsim cov cuab yeej ua haujlwm ntau thiab cov qauv siv nrog lwm cov khoom siv kho qhov muag. Muaj kev ruaj khov thiab cov nqi ua tau zoo kuj tseem yog ib qho laj thawj vim li cas AWG ua cov thev naus laus zis rau DWDM.