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Tsev > Xov xwm > Ntsiab lus
Tsawg Tus Nqi, Tsawg Muaj Rog Siv, Me Nyuam Me
May 08, 2018

Lub luag haujlwm ntawm wavelength division multiplexers tsuas yog coj los ua ke los yog sib cais ntau wavelengths. Ob qho hom ntawm WDM:

1, tawv rub lub khob: siv lub tshuab taper (xws li lub computer xyuas system) rau high-temperature melting cones tom qab ob lub tshuab fiber ntau kom tiav 1310nm thiab 1550nm wavelength division multiplexing hom phiaj.

2. Fais lim hom: Tom qab lub thawv SMD, lub lens thiab cov lim tau siv los ua kom tiav lub hom phiaj ntawm cov kab sib dhos sib txuas hauv ntau txoj kab.

Qhov Wavelength Division Multiplexer faib cov sib npaug ntawm cov kab sib dhos sib dhos (multiplexer multiplexer multiplexer multiplexer) (CWDM) thiab ntom ntom ntom (multiplexer multiplexer multiplexer) (DWDM):

CWDM: Enables ntau lub wavelengths kis tau los ntawm tib lub fwj.

DWDM: Cov cuab yeej siv no siv cov khoom siv bandwidth thiab qis-qes ntawm tib hom fibers, thiab siv ntau lub wavelengths li cov xeeb ceem, cia txhua lub tshav thaiv channel tau xa mus ib txhij hauv cov fiber. Piv nrog ib qho dav-ib qhov system, DWDM tsis tsuas yog pab txhim kho lub network. Qhov kev sib txuas lus ntawm qhov system ua rau kev siv cov bandwidth ntawm cov khoom siv fiber ntau, thiab nws muaj ntau yam zoo xws li kev yooj yim nthuav thiab txhim khu kev qha, thiab qhov kev vam meej yog qhov muag heev.

Qhov sib txawv ntawm CWDM thiab DWDM.

1. Txoj kev sib tw ntawm CWDM carrier channels yog qhov dav. Yog li ntawd, tsuas yog 18 wavelengths ntawm lub teeb tsis pom kev tuaj yeem tshwm sim rau tib lub yeeb tshuaj. Qhov txawv ntawm "coarse" thiab "ntom" lub npe tshwm ntawm qhov no;

2. CWDM modulated lasers siv uncolled lasers thaum DWDM siv cov lasers txias. Qhov cua txias laser yog qhov kub thiab qhov laser uncooled yog electronically tuned. Vim yog lub cev tsis sib xws ntawm lub cev tsis tshua sib txawv ntawm ntau lub wavelength, qhov kub thiab txias yog qhov yooj yim thiab kim kom siv. CWDM tsis tuaj yeem ua qhov teeb meem no thiab yog li ntawd txo nqi. Tag nrho CWDM tus nqi tsuas yog 30% ntawm DWDM.

3. CWDM nta tus nqi qis, txo qis zog, thiab loj me me.