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

1. Erbium-doped fiber ntau
Erbium yog lub ntiaj teb tsis tshua muaj cov lej atomic ntawm 68 thiab qhov hnyav atomic ntawm 167.3. Lub erbium ion qib hluav taws xob hluav taws xob tau pom nyob rau hauv daim duab, thiab kev hloov pauv ntawm qib qis zog mus rau qib siab zog sib raug rau cov txheej txheem nqus ntawm lub teeb. Qhov kev hloov ntawm qib siab zog mus rau qib qis zog sib raug rau lub teeb emission txheej txheem.

2. EDFA txoj cai

EDFA siv erbium ion-doped fiber ntau li qhov nruab nrab nce, uas ua rau cov pej xeem inversion nyob rau hauv lub teeb lub teeb. Nws realizes stimulated radiation amplification nyob rau hauv induction ntawm teeb liab teeb.
Erbium ions muaj peb theem zog. Lawv nyob rau theem qis tshaj plaws, E1, thaum lawv tsis txaus siab los ntawm ib qho teeb pom kev zoo. Thaum cov fiber ntau zoo siab heev los ntawm lub twj tso kua mis lub teeb laser, cov khoom hauv av hauv lub xeev nce zog thiab hloov mus rau qib siab dua. Xws li kev hloov pauv ntawm E1 mus rau E3, vim hais tias cov particle tsis ruaj khov ntawm lub zog siab ntawm E3, nws yuav poob sai sai rau lub xeev metastable E2 hauv cov txheej txheem tsis hloov pauv hluav taws xob. Nyob rau theem no lub zog, cov hais muaj ib tug kuj ntev ciaj sia taus lub neej. Vim yog qhov kev ua kom zoo ntxiv ntawm lub twj tso kua mis lub teeb, tus naj npawb ntawm cov khoom ntawm E2 lub zog yuav nce ntxiv, thiab cov khoom ntawm E1 lub zog yuav nce ntxiv. Nyob rau hauv txoj kev no, cov pej xeem inversion faib yog paub nyob rau hauv lub erbium-doped fiber, thiab tej yam kev mob rau kev kawm optical amplification muaj.
Thaum lub teeb liab input photon zog E = hf yog qhov sib npaug ntawm lub zog sib txawv ntawm E2 thiab E1, E2-E1 = hf, cov khoom hauv lub xeev metastable yuav hloov mus rau hauv av xeev E1 hauv daim ntawv ntawm hluav taws xob txhawb zog. Cov hluav taws xob thiab cov tswv yim Cov photons hauv cov teeb liab zoo ib yam rau cov photons, yog li ua kom cov photons 'tus naj npawb, ua rau cov tswv yim kho qhov muag teeb liab dhau los ua cov teeb liab muaj zog hauv cov teeb liab erbium-doped fiber, paub qhov ncaj qha amplification ntawm cov teeb liab optical. .

2. Daim duab qhia txog kab ke thiab cov cuab yeej siv yooj yim
2.1. Daim duab schematic ntawm L-band optical fiber amplifier system yog raws li nram no:

2.2. Daim duab schematic ntawm ASE lub teeb qhov system rau spontaneous emission ntawm erbium-doped fiber ntau yog raws li nram no:

Kev taw qhia ntaus ntawv

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

Parameter		Chav tsev	Min	Ntaus	Max
Ua haujlwm wavelength ntau yam		nm	1525		1565 ib
Input teeb liab zog ntau yam		dBm ib	-5		10
Saturation tso zis optical zog		dBm ib			37
Saturation tso zis optical zog stability		dB			± 0.3
Suab nrov index @ input 0dBm		dB		5.5	6.0
Input optical cais		dB	30
Output optical cais		dB	30
Input rov poob		dB	40
Tso zis rov poob		dB	40
Polarization nyob ntawm qhov nce		dB		0.3	0.5
Polarization hom dispersion		ps			0.3
Input twj tso kua mis		dBm ib			-30
Output twj tso kua mis		dBm ib			-30
Ua haujlwm voltage		AC (V)	80		240
Fiber hom			SMF-28
Output interface			FC/APC
Kev sib txuas lus interface			TSI RS232
Pob loj	Module	mm	483 × 385 × 88 (2U khib)
Pob loj	Desktop	mm	150 × 125 × 35

2.ROF -EDFA -B erbium-doped fiber ntau lub zog amplifier

Parameter			Chav tsev	Min	Ntaus	Max
Ua haujlwm wavelength ntau yam			nm	1525		1565 ib
Output teeb liab zog ntau yam			dBm ib	-10
Me teeb liab nce			dB		30	35
Saturation optical tso zis ntau *			dBm ib		17/20/23 hnub
Noise daim duab **			dB		5.0	5.5
Kev cais tawm tswv yim			dB	30
Kev cais tawm			dB	30
Polarization ywj siab nce			dB		0.3	0.5
Polarization hom dispersion			ps			0.3
Input twj tso kua mis			dBm ib			-30
Output twj tso kua mis			dBm ib			-40
Ua haujlwm voltage		module	V	4.75 ib	5	5.25
Ua haujlwm voltage		desktop	AC (V)	80		240
Optical fiber ntau				SMF-28
Output interface				FC/APC
Qhov ntev	module		mm	90 × 70 × 18
Qhov ntev	desktop		mm	320 × 220 × 90 hli

3. ROF -EDFA -P qauv Erbium doped fiber ntau amplifier

Parameter		Chav tsev	Min	Ntaus	Max
Ua haujlwm wavelength ntau yam		nm	1525		1565 ib
Input teeb liab zog ntau yam		dBm ib	-45
Me teeb liab nce		dB		30	35
Saturation optical fais fab tso zis ntau *		dBm ib		0
Suab nrov index **		dB		5.0	5.5
Input optical cais		dB	30
Output optical cais		dB	30
Polarization nyob ntawm qhov nce		dB		0.3	0.5
Polarization hom dispersion		ps			0.3
Input twj tso kua mis		dBm ib			-30
Output twj tso kua mis		dBm ib			-40
Kev khiav hauj lwm voltage	Module	V	4.75 ib	5	5.25
Kev khiav hauj lwm voltage	Desktop	AC (V)	80		240
Fiber hom			SMF-28
Output Interface			FC/APC
Pob loj	Module	mm	90 * 70 * 18
Pob loj	Desktop	mm	320 * 220 * 90 hli