1. Erbium-doped fiber ntau
Erbium yog lub ntiaj teb tsis tshua muaj dab tsi nrog ib tug atomic naj npawb ntawm 68 thiab ib qho hnyav atomic hnyav ntawm 167.3. Lub Eth lub zog hluav taws xob theem yog qhia hauv daim duab, thiab kev hloov los ntawm qis dua hluav taws xob sib haum rau cov txheej txheem nqus dej. Qhov hloov pauv ntawm lub zog sab saud mus rau theem qis qis sib haum rau lub teeb emission cov txheej txheem.
![p1](http://www.bjrofoc.com/uploads/p12.jpg)
2. Edfa txoj ntsiab cai
![p2](http://www.bjrofoc.com/uploads/p22.jpg)
Edfa siv cov roj fiber ntau ion-doped ion raws li qhov nce nruab nrab, uas tsim cov pejxeem inversion hauv qab lub teeb mov. Nws paub tseeb rafliation rasiation ambification nyob rau hauv induction ntawm teeb liab teeb.
Ed muaj peb qib zog. Lawv nyob ntawm qhov qis qis theem, E1, thaum lawv tsis zoo siab los ntawm lub teeb. Thaum cov fiber tseem muaj kev zoo siab tsis tu ncua los ntawm lub teeb raj mis lub teeb ci Xws li kev hloov pauv ntawm E1 mus rau E3, vim hais tias lub zog tsis ruaj khov ntawm lub zog siab ntawm E3, nws yuav poob sai sai rau lub xeev metastable Stim E2 hauv qhov kev hloov pauv tsis tawg. Ntawm lub zog no, cov lus hais muaj lub neej muaj sia nyob ntev. Vim yog cov kev hloov mus txuas ntxiv ntawm lub teeb taub hau twj tso kua mis, tus naj npawb ntawm cov khoom siv hluav taws xob yuav nce ntxiv, thiab cov naj npawb ntawm theem E1 yuav nce ntxiv. Nyob rau hauv txoj kev no, cov pejxeem kev faib khoom xa tawm yog pom nyob rau hauv lub erbium-doped fiber ntau, thiab cov xwm txheej rau kev kawm kho qhov muag ua kom zoo.
When the input signal photon energy E=hf is precisely equal to the energy level difference between E2 and E1, E2-E1=hf, the particles in the metastable state will transition to the ground state E1 in the form of stimulated radiation. Cov hluav taws xob thiab cov tswv yim lub photons hauv lub teeb liab yog qhov zoo ib yam ntawm lub cim hluav taws xob, ua rau muaj zog optical fiber ntau, ua kom pom tseeb qhov ua kom pom tseeb ntawm lub teeb liab kho qhov muag Cov.
2. System Diagram thiab Cov Khoom Taw Qhia Khoom Siv Yooj Yim
2.1. Lub kos duab schematic ntawm L-band kho qhov muag fiber ntau amplifier system yog raws li hauv qab no:
![p3](http://www.bjrofoc.com/uploads/p31.jpg)
2.2. Cov txheej txheem schematic ntawm cov ntaub ntawv lub teeb ci rau nteg tawm ntawm erbium-doped fiber yog raws li hauv qab no:
![p4](http://www.bjrofoc.com/uploads/p41.jpg)
Ntaus Taw Qhia
1.Rof -edfa -hp Lub Zog Hluav Taws Xob Erbium doped Fiber Amnourefier
Chaw ua uas tsis tau haus | Ib yam | Lub min | Hom | Tus zuag | |
Kev ua haujlwm wavelengthe ntau | nm | 1525 | 1565 | ||
Cov tswv yim teeb liab hluav taws xob ntau | dBM | -5 | 10 | ||
Kev Txom Nyem Optical Lub Zog | dBM | 37 | |||
Kev Txom Nyem Optical Zog | dB | 0.3 | |||
Suab nrov index @ tswv yim 0DBM | dB | 5.5 | 6.0 | ||
Tawm tswv yim kho qhov muag | dB | 30 | |||
Tawm Kho Qhov Muag Kho Siab | dB | 30 | |||
Tawm tswv yim rov qab poob | dB | 40 | |||
Tso Tawm Rov Qab Poob | dB | 40 | |||
Kev Khib Qib Siab Nyob Ruaj Ruaj | dB | 0.3 | 0.5 | ||
Polarization hom kev sib cais | ps | 0.3 | |||
Tawm Tswv Twj Tso Kua Muag | dBM | -30 | |||
Cov Tso Tawm Twj Tso Kua Muag | dBM | -30 | |||
Kev Lag Luam Hluav Taws Xob | V (ac) | 80 | 240 | ||
Hom Fais fab | Smf-28 | ||||
Tso zis interface | Fc / APC | ||||
Kev sib txuas lus interface | Rs232 | ||||
Ntim Qhov Coob | Module | mm | 483 × 385 × 88 (2U Khib) | ||
Desktop | mm | 150 × 125 × 35 |
2.OF -EDFA -B Ebium-doped fiber ntau zog amplifier
Chaw ua uas tsis tau haus | Ib yam | Lub min | Hom | Tus zuag | ||
Kev ua haujlwm wavelengthe ntau | nm | 1525 | 1565 | |||
Tso zis teeb liab ntau yam | dBM | -10 | ||||
Lub teeb liab me me | dB | 30 | 35 | |||
Muaj zis tawm ntawm cov khoom tawm tshiab | dBM | 17/20/23 | ||||
Suab nrov suab ** | dB | 5.0 | 5.5 | |||
Cov lus cais | dB | 30 | ||||
Tso Tawm Kev Tawm | dB | 30 | ||||
Polarization ywj pheej nce | dB | 0.3 | 0.5 | |||
Polarization hom kev sib cais | ps | 0.3 | ||||
Tawm Tswv Twj Tso Kua Muag | dBM | -30 | ||||
Cov Tso Tawm Twj Tso Kua Muag | dBM | -40 | ||||
Kev Lag Luam Hluav Taws Xob | module | V | 4.75 | 5 | 5.25 | |
desktop | V (ac) | 80 | 240 | |||
Kho Qhov Muag Fiber | Smf-28 | |||||
Tso zis interface | Fc / APC | |||||
Qho loj | module | mm | 90 × 70 × 18 | |||
desktop | mm | 320 × 220 × 90 | ||||
3. ROF -edfa -P qauv erbium doped fiber ntau dua
Chaw ua uas tsis tau haus | Ib yam | Lub min | Hom | Tus zuag | |
Kev ua haujlwm wavelengthe ntau | nm | 1525 | 1565 | ||
Cov tswv yim teeb liab hluav taws xob ntau | dBM | -45 | |||
Lub teeb liab me me | dB | 30 | 35 | ||
Saturation optical optical tso zis ntau * | dBM | 0 | |||
Suab nrov index ** | dB | 5.0 | 5.5 | ||
Tawm tswv yim kho qhov muag | dB | 30 | |||
Tawm Kho Qhov Muag Kho Siab | dB | 30 | |||
Kev Khib Qib Siab Nyob Ruaj Ruaj | dB | 0.3 | 0.5 | ||
Polarization hom kev sib cais | ps | 0.3 | |||
Tawm Tswv Twj Tso Kua Muag | dBM | -30 | |||
Cov Tso Tawm Twj Tso Kua Muag | dBM | -40 | |||
Kev Lag Luam Hluav Taws Xob | Module | V | 4.75 | 5 | 5.25 |
Desktop | V (ac) | 80 | 240 | ||
Hom Fais fab | Smf-28 | ||||
Tso zis interface | Fc / APC | ||||
Ntim Qhov Coob | Module | mm | 90 * 70 * 18 | ||
Desktop | mm | 320 * 220 * 90 |