Qhov ceev ntawm optical module SFP + yog: 10G SFP + optical transceiver yog kev hloov kho ntawm SFP (qee zaus hu ua "mini-GBIC"). SFP tau siv dav hauv Gigabit Ethernet thiab 1G, 2G, thiab 4G Fiber Channel. Txhawm rau hloov mus rau cov ntaub ntawv ntau dua, SFP + tau tsim kho cov khoom siv hluav taws xob tiv thaiv hluav taws xob thiab cov teeb liab txij nkawm zoo dua li SFP, thiab tau tsim cov khoom siv hluav taws xob tshiab.
Interface Performance index ntawm SFP optical module
1. Output optical power Output optical power yog hais txog qhov tso zis hluav taws xob kho qhov muag ntawm lub teeb pom kev ntawm qhov xa tawm kawg ntawm qhov kho qhov muag module, chav tsev: dBm.
2. Tau txais lub hwj chim kho qhov muag Tau txais lub hwj chim kho qhov muag hais txog qhov tau txais lub hwj chim kho qhov muag ntawm qhov tau txais qhov kawg ntawm qhov kho qhov muag module, chav tsev: dBm.
3. Tau txais rhiab heev Tau txais rhiab heev yog hais txog qhov tsawg kawg nkaus tau txais lub zog kho qhov muag ntawm qhov kho qhov muag module ntawm tus nqi thiab qhov yuam kev me ntsis, hauv dBm. Nyob rau hauv ib txwm muaj xwm txheej, tus nqi siab dua, qhov tsis zoo ntawm qhov tau txais rhiab heev, uas yog, qhov loj dua qhov tsawg kawg nkaus tau txais lub hwj chim kho qhov muag, qhov siab dua qhov yuav tsum tau txais cov cuab yeej ntawm optical module.
4. Saturated optical zog, tseem hu ua optical saturation, hais txog lub siab tshaj plaws input optical zog thaum ib tug tej yam me ntsis yuam kev tus nqi (10-10～10-12) yog khaws cia ntawm tus nqi sib kis.
Nws yuav tsum tau muab sau tseg tias lub photodetector yuav saturate lub photocurrent nyob rau hauv lub teeb muaj zog. Thaum qhov tshwm sim no tshwm sim, tus ntes yuav tsum tau muaj lub sijhawm kom rov zoo. Nyob rau lub sijhawm no, qhov kev xav tau txo qis thiab cov teeb liab tau txais yuav raug txiav txim tsis raug. Nws ua rau me ntsis yuam kev, thiab nws yooj yim heev rau kev puas tsuaj rau lub receiver detector. Nyob rau hauv kev siv, nws yuav tsum tau sim kom tsis txhob tshaj nws saturated optical zog.
Nco ntsoov tias rau qhov ntev-ntev kho qhov muag modules, txij li qhov nruab nrab cov zis hluav taws xob kho qhov muag feem ntau yog ntau dua li nws lub hwj chim kho qhov muag, thov xyuam xim rau qhov ntev ntawm cov fiber ntau thaum siv los xyuas kom meej tias qhov tau txais lub zog kho qhov muag mus txog qhov kho qhov muag module. yog tsawg dua nws saturated optical zog. Optical module puas lawm.
Cov khoom siv ntawm SFP optical modules
Cov muaj pes tsawg leeg ntawm SFP optical module yog: laser: nrog rau lub transmitter TOSA thiab receiver ROSA Circuit Court board IC, thiab cov khoom siv sab nraud yog: plhaub, puag, PCBA, rub nplhaib, buckle, xauv daim, roj hmab ntsaws. Tsis tas li ntawd, txhawm rau txheeb xyuas tau yooj yim, Feem ntau, qhov parameter hom ntawm lub module raug txheeb xyuas los ntawm cov xim ntawm lub nplhaib rub. Piv txwv li: lub nplhaib rub dub yog ntau hom, lub wavelength yog 850nm; xiav yog lub module nrog lub wavelength ntawm 1310nm; lub daj yog lub module nrog lub wavelength ntawm 1550nm; cov ntshav yog lub module nrog lub wavelength ntawm 1490nm.
SFP, SFF thiab GBIC optical module kev sib raug zoo
SFP yog cov ntawv luv ntawm Daim Ntawv Me Me-Qhov Pluggables, uas yog, pob me me pluggable optical module. SFP tuaj yeem suav tias yog ib qho pluggable version ntawm SFF. Nws cov hluav taws xob interface yog 20-pin kub ntiv tes. Cov ntaub ntawv teeb liab interface yog qhov pib zoo ib yam li SFF module. SFP module kuj muab I2C tswj interface, sib xws nrog SFP-8472 tus qauv kho qhov muag interface diagnostics. Ob leeg SFF thiab SFP tsis suav nrog SerDes ib feem, thiab tsuas yog muab cov ntaub ntawv sib txuas. CDR thiab hluav taws xob dispersion them nyiaj raug muab tso rau sab nraum lub module, ua rau me me thiab tsawg zog siv tau. Vim qhov kev txwv ntawm cov cua kub dissipation, SFF / SFP tsuas yog siv tau rau ultra-luv nrug, luv luv thiab nruab nrab ntawm qhov kev thov ntawm 2.5Gbps thiab hauv qab no.
SFP optical modules tam sim no muaj qhov siab tshaj plaws ntawm 10G, thiab feem ntau siv LC interfaces. Nws tuaj yeem nkag siab yooj yim raws li kev hloov kho tshiab ntawm GBIC. Qhov ntim ntawm SFP optical modules raug txo los ntawm ib nrab piv nrog GBIC optical modules, thiab ntau dua ob npaug ntawm cov chaw nres nkoj tuaj yeem teeb tsa ntawm tib lub vaj huam sib luag. Hais txog lwm yam haujlwm, qhov pib ntawm SFP module yog tib yam li GBIC. Yog li ntawd, ib txhiahloovmanufacturers hu SFP optical modules miniaturized GBIC.