L-bhendi EDFA amplifier system technical scheme

1. Erbium-doped fiber
Erbium chinhu chepasi chisingawanikwe chine nhamba yeatomu ye68 uye huremu hweatomu hwe167.3.Iyo erbium ion's electronic energy level inoratidzwa mumufananidzo, uye shanduko kubva kune yakaderera simba nhanho kuenda kune yepamusoro simba nhanho inoenderana nekutorwa kwechiedza.Shanduko kubva padanho repamusoro resimba kusvika padanho resimba rezasi rinoenderana nemaitiro ekuburitsa chiedza.

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2. EDFA musimboti

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EDFA inoshandisa erbium ion-doped fiber senzira yekuwana, iyo inogadzira inversion yehuwandu pasi pechiedza chepombi.Iyo inoona yakasimudzwa nemwaranzi amplification pasi pekuiswa kwechiratidzo chechiedza.
Erbium ions ine mazinga matatu emagetsi.Ivo vari padanho rakaderera resimba, E1, kana vasingafadzwi nechero chiedza.Kana iyo fiber ikaramba ichinakidzwa nepombi mwenje sosi laser, zvimedu zviri muvhu zvinowana simba uye shanduko kuenda kune yakakwirira simba nhanho.Zvakadai sekushandura kubva kuE1 kusvika kuE3, nokuti chidimbu chacho hachina kugadzikana pachiyero chesimba reE3, chichakurumidza kuwira kune metastable state E2 mune isiri-radiative transition process.Padanho resimba iri, zvimedu zvine hupenyu hurefu hwekupona.Pamusana pekuenderera mberi kwekunakidzwa kwepombi chiedza chechiedza, nhamba yezvikamu paE2 simba rezinga richaramba richiwedzera, uye nhamba yezvikamu paE1 simba level ichawedzera.Nenzira iyi, kugoverwa kwehuwandu hwehuwandu hunowanikwa muerbium-doped fiber, uye mamiriro ekudzidza optical amplification anowanikwa.
Kana iyo yekuisa chiratidzo photon simba E = hf yakanyatso kuenzana nechiyero chesimba mutsauko pakati peE2 neE1, E2-E1 = hf, zvimedu zviri mu metastable state zvichachinja kuenda kupasi E1 muchimiro chemwaranzi yakakurudzirwa.Iyo radiation uye yekupinda Iyo mafotoni ari muchiratidzo akafanana nemafotoni, nekudaro kuwedzera zvakanyanya nhamba yephotons, zvichiita kuti iyo yekupinza chiratidzo ive yakasimba kubuda optical chiratidzo muerbium-doped fiber, ichiziva kukwidziridzwa kwakananga kwechiratidzo chemaziso. .

2. Dhizaini yehurongwa uye yekutanga mudziyo sumo
2.1.Iyo schematic dhizaini yeL-band optical fiber amplifier system ndeiyi inotevera:

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2.2.Iyo schematic dhizaini yeASE mwenje sosi system yekungoerekana yabuda yeerbium-doped fiber ndeiyi inotevera:

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Nhanganyaya yemudziyo

1.ROF -EDFA -HP High Power Erbium Doped Fiber Amplifier

Parameter Unit Min Typ Max
Kushanda wavelength range nm 1525   1565
Input signal power range dBm -5   10
Saturation yakabuda optical simba dBm     37
Saturation yakabuda optical simba kugadzikana dB     ±0.3
Noise index @ kuisa 0dBm dB   5.5 6.0
Input Optical isolation dB 30    
Output optical isolation dB 30    
Input return loss dB 40    
Output return loss dB 40    
Polarization zvinoenderana kuwana dB   0.3 0.5
Polarization mode dispersion ps     0.3
Kubuda kwepombi yekupinda dBm     -30
Pombi inobuda kubuda dBm     -30
Operating voltage V( AC ) 80   240
Fiber type  

SMF-28

Output interface  

FC/APC

Kukurukurirana interface  

RS232

Saizi yepakeji Module mm

483×385×88(2U rack)

Desktop mm

150×125×35

2.ROF -EDFA -B erbium-doped fiber simba amplifier

Parameter

Unit

Min

Typ

Max

Kushanda wavelength range

nm

1525

 

1565

Kubuda kwechiratidzo chesimba renji

dBm

-10

   
Small chiratidzo kuwana

dB

 

30

35

Saturation optical kubuda renji *

dBm

 

17/20/23

 
Noise figure **

dB

 

5.0

5.5

Kuisa wega

dB

30

   
Kuzviparadzanisa nevamwe

dB

30

   
Polarization yakazvimirira kuwana

dB

 

0.3

0.5

Polarization mode dispersion

ps

   

0.3

Kubuda kwepombi yekupinda

dBm

   

-30

Pombi inobuda kubuda

dBm

   

-40

Operating voltage

module

V

4.75

5

5.25

desktop

V( AC )

80

 

240

Optical fiber  

SMF-28

Output interface  

FC/APC

Dimensions

module

mm

90×70×18

desktop

mm

320×220×90

           

3. ROF -EDFA -P muenzaniso Erbium doped fiber amplifier

Parameter

Unit

Min

Typ

Max

Kushanda wavelength range

nm

1525

 

1565

Input signal power range

dBm

-45

   
Small chiratidzo kuwana

dB

 

30

35

Saturation optical simba kubuda renji *

dBm

 

0

 
Noise index **

dB

 

5.0

5.5

Input Optical isolation

dB

30

   
Output optical isolation

dB

30

   
Polarization zvinoenderana kuwana

dB

 

0.3

0.5

Polarization mode dispersion

ps

   

0.3

Kubuda kwepombi yekupinda

dBm

   

-30

Pombi inobuda kubuda

dBm

   

-40

Kushanda Voltage

Module

V

4.75

5

5.25

Desktop

V( AC )

80

 

240

Fiber type  

SMF-28

Output Interface  

FC/APC

Saizi yepakeji

Module

mm

90*70*18

Desktop

mm

320*220*90