Nidaamka farsamada ee qalabka kor u qaada EDFA ee L-band

1. Faybar lagu darey Erbium
Erbium waa curiye dhul oo naadir ah oo leh tiro atom ah oo ah 68 iyo miisaan atom ah oo ah 167.3. Heerka tamarta elektaroonigga ah ee erbium ion waxaa lagu muujiyay sawirka, kala-guurka heerka tamarta hoose una gudbaya heerka tamarta sare wuxuu la mid yahay habka nuugista iftiinka. Isbeddelka heerka tamarta sare una gudbaya heerka tamarta hoose wuxuu la mid yahay habka sii deynta iftiinka.

2. Mabda'a EDFA

EDFA waxay u isticmaashaa faybarka erbium ion-ka lagu dahaadhay sida habka helitaanka, kaas oo soo saara rogrogmada dadweynaha marka la eego iftiinka bamka. Waxay xaqiijisaa kordhinta shucaaca ee la kiciyay iyadoo la adeegsanayo iftiinka calaamadda.
Ion-yada Erbium waxay leeyihiin saddex heer oo tamar ah. Waxay ku jiraan heerka tamarta ugu hooseeya, E1, marka aysan ku faraxsanayn wax iftiin ah. Marka faybarku si joogto ah u kiciyo laysarka isha iftiinka bamka, walxaha ku jira xaaladda dhulka waxay helaan tamar waxayna u gudbaan heer tamar oo sarreeya. Sida kala-guurka E1 ilaa E3, sababtoo ah walxaha aan degganayn heerka tamar sare ee E3, waxay si dhakhso ah ugu dhici doontaa xaaladda metastable E2 habka kala-guurka aan shucaaca lahayn. Heerkan tamarta, walxaha waxay leeyihiin nolol badbaado oo dheer. Sababtoo ah kicinta joogtada ah ee isha iftiinka bamka, tirada walxaha ku jira heerka tamarta E2 way sii kordhi doontaa, tirada walxaha ku jira heerka tamarta E1 way sii kordhi doontaa. Sidan, qaybinta rogidda dadweynaha waxaa lagu ogaaday fiilada erbium-ku-darka leh, shuruudaha barashada kor u qaadista indhaha ayaa la heli karaa.
Marka tamarta sawirka ee calaamadda gelinta E=hf ay si sax ah ula mid tahay farqiga heerka tamarta ee u dhexeeya E2 iyo E1, E2-E1=hf, walxaha ku jira xaaladda metastable-ka waxay u wareegi doonaan xaaladda dhulka E1 qaab shucaac kicinaya. Shucaaca iyo gelinta Sawirka ee calaamadda ku jira wuxuu la mid yahay sawirka, sidaas darteed wuxuu si weyn u kordhinayaa tirada sawirka, taasoo ka dhigaysa calaamadda indhaha ee gelinta inay noqoto calaamad muuqaal ah oo xoog leh oo ku jirta fiilada erbium-ku-darka leh, taasoo xaqiijinaysa kor u qaadista tooska ah ee calaamadda indhaha.

2. Jaantuska nidaamka iyo hordhaca qalabka aasaasiga ah
2.1. Jaantuska jaantuska ee nidaamka cod-weyneeyaha fiber-ka ee L-band waa sidan soo socota:

2.2. Jaantuska jaantuska ee nidaamka isha iftiinka ASE ee sii deynta iskeed ah ee fiilada erbium-ku-darka leh waa sida soo socota:

Soo bandhigida qalabka

1.ROF -EDFA -Kordhiyaha Fiber-ka Erbium ee Awoodda Sare leh ee HP

Halbeegga		Cutubka	Ugu yaraan	Nooca	Ugu badnaan
Kala duwanaanshaha hirarka hawlgalka		nm	1525		1565
Kala duwanaanshaha awoodda calaamadda gelinta		dBm	-5		10
Awoodda indhaha ee soo saarista dheregga		dBm			37
Xasiloonida awoodda indhaha ee soo saarista dheregga		dB			±0.3
Tusmada buuqa @ gelinta 0dBm		dB		5.5	6.0
Go'doomin indhaha ah oo la geliyo		dB	30
Go'doomin indhaha ah oo soo baxaya		dB	30
Lumista soo celinta soo-gelinta		dB	40
Lumista soo celinta wax soo saarka		dB	40
Faa'iidada ku tiirsan Polarization		dB		0.3	0.5
Kala firdhinta qaabka Kala-fogaanshaha		ps			0.3
Daadinta bamka gelinta		dBm			-30
Daadinta bamka soo baxaya		dBm			-30
Danabka hawlgalka		V(AC)	80		240
Nooca faybarka			SMF-28
Is-dhexgalka wax soo saarka			FC/APC
Is-dhexgalka isgaarsiinta			RS232
Cabbirka baakadka	Module	mm	483×385×88(2U raafka)
Cabbirka baakadka	Miiska Desktop-ka	mm	150 × 125 × 35

2.ROF -EDFA -B amplifier-ka fiilada lagu dahaadhay ee erbium-ka lagu daray

Halbeegga			Cutubka	Ugu yaraan	Nooca	Ugu badnaan
Kala duwanaanshaha hirarka hawlgalka			nm	1525		1565
Kala duwanaanshaha awoodda calaamadda soo saarista			dBm	-10
Korodh yar oo calaamad ah			dB		30	35
Kala duwanaanshaha wax soo saarka indhaha ee buuxa *			dBm		17/20/23
Sawirka buuqa **			dB		5.0	5.5
Go'doominta gelinta			dB	30
Go'doominta wax soo saarka			dB	30
Faa'iidada madax-bannaan ee Polarization			dB		0.3	0.5
Kala firdhinta qaabka Kala-fogaanshaha			ps			0.3
Daadinta bamka gelinta			dBm			-30
Daadinta bamka soo baxaya			dBm			-40
Danabka hawlgalka		module	V	4.75	5	5.25
Danabka hawlgalka		desktop	V(AC)	80		240
Faybarka indhaha				SMF-28
Is-dhexgalka wax soo saarka				FC/APC
Cabbirrada	module		mm	90×70×18
Cabbirrada	desktop		mm	320 × 220 × 90

3. Qaabka ROF -EDFA -P ee Erbium doped fiber amplifier

Halbeegga		Cutubka	Ugu yaraan	Nooca	Ugu badnaan
Kala duwanaanshaha hirarka hawlgalka		nm	1525		1565
Kala duwanaanshaha awoodda calaamadda gelinta		dBm	-45
Korodh yar oo calaamad ah		dB		30	35
Kala duwanaanshaha wax soo saarka awoodda indhaha ee buuxa *		dBm		0
Tusmada buuqa **		dB		5.0	5.5
Go'doomin indhaha ah oo la geliyo		dB	30
Go'doomin indhaha ah oo soo baxaya		dB	30
Faa'iidada ku tiirsan Polarization		dB		0.3	0.5
Kala firdhinta qaabka Kala-fogaanshaha		ps			0.3
Daadinta bamka gelinta		dBm			-30
Daadinta bamka soo baxaya		dBm			-40
Danabka Hawlgalka	Module	V	4.75	5	5.25
Danabka Hawlgalka	Miiska Desktop-ka	V(AC)	80		240
Nooca faybarka			SMF-28
Is-dhexgalka Soo-saarka			FC/APC
Cabbirka baakadka	Module	mm	907018
Cabbirka baakadka	Miiska Desktop-ka	mm	32022090

Nidaamka farsamada ee qalabka xoojiyaha EDFA ee L-band

Soo bandhigida qalabka