L-bhendi EDFA amplifier system technical scheme - Rofea Optoelectronics Co., Ltd.

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.

2. EDFA musimboti

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.Nekuda kwekuenderera mberi kwekunakidzwa kwepombi light source, nhamba yezvikamu paE2 simba level icharamba ichiwedzera, uye nhamba yezvimedu paE1 simba level ichawedzera.Nenzira iyi, kugoverwa kwehuwandu hwevanhu kunowanikwa 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 inokurudzirwa.Iyo radiation uye yekupinda Iyo mafotoni muchiratidzo akafanana nemafotoni, nekudaro ichiwedzera zvakanyanya nhamba yephotons, zvichiita kuti iyo yekupinza chiratidzo ive chiratidzo chakasimba chekubuda muiyo erbium-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:

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

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)
Saizi yepakeji	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
Operating voltage		desktop	V( AC )	80		240
Optical fiber				SMF-28
Output interface				FC/APC
Dimensions	module		mm	90×70×18
Dimensions	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
Kushanda Voltage	Desktop	V( AC )	80		240
Fiber type			SMF-28
Output Interface			FC/APC
Saizi yepakeji	Module	mm	907018
Saizi yepakeji	Desktop	mm	32022090