L-band Edfa Amplifier System Techne

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.

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2. Edfa txoj ntsiab cai

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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:

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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:

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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