Ii-amplifier ezibonakalayo kwicandelo lonxibelelwano lwefayibha ye-optical
An i-amplifier yokukhanyasisixhobo esandisa imiqondiso ye-optical. Kwicandelo lonxibelelwano lwefayibha ye-optical, ikakhulu idlala le misebenzi ilandelayo: 1. Ukuphucula nokwandisa amandla e-optical. Ngokubeka i-optical amplifier kwisiphelo esingaphambili se-optical transmitter, amandla e-optical angena kwifayibha anokwandiswa. 2. Ukukhulisa i-relay kwi-intanethi, okuthatha indawo yeeRepeaters ezikhoyo kwiinkqubo zonxibelelwano lwefayibha ye-optical; 3. Ukukhulisa kwangaphambili: Ngaphambi kokuba i-photodetector ifikelele kwisiphelo sokwamkela, isignali yokukhanya ebuthathaka iyandiswa kwangaphambili ukuze kuphuculwe uvakalelo lokwamkela.
Okwangoku, ii-amplifiers ze-Optical ezamkelweyo kunxibelelwano lwe-Optical fiber ziquka ezi ntlobo zilandelayo: 1. I-amplifier ye-Semiconductor optical (I-amplifier ye-SOA Optical)/I-amplifier yelaser ye-semiconductor (i-amplifier ye-SLA Optical); 2. Ii-amplifier zefayibha ezingaqhelekanga ezifakwe umhlaba, ezifana nee-amplifier zefayibha ezifakwe i-bait (I-amplifier ye-EDFA Optical), njl. 3. Ii-amplifiers zefayibha ezingezizo ezithe ngqo, ezifana nee-amplifiers zefayibha iRaman, njl. Oku kulandelayo yintshayelelo emfutshane ngokulandelanayo.
1. Ii-amplifier ze-Semiconductor optical: Phantsi kweemeko ezahlukeneyo zokusetyenziswa kunye nokukhanya kobuso obuhlukeneyo, ii-laser ze-semiconductor zinokuvelisa iintlobo ezahlukeneyo zee-amplifier ze-semiconductor optical. Ukuba umsinga oqhubayo we-laser ye-semiconductor uphantsi kunomda wayo, oko kukuthi, akukho laser iveliswayo, ngeli xesha, isignali ye-optical ingena kwelinye icala. Logama nje i-frequency yale signal ye-optical ikufutshane neziko le-spectral ye-laser, iya kwandiswa kwaye iphume kwelinye icala. Olu hlobo lwei-amplifier ye-optical ye-semiconductoribizwa ngokuba yi-Fabry-Perrop type optical amplifier (FP-SLA). Ukuba i-laser ithambekele ngaphaya komda, i-single-mode optical signal input ebuthathaka ukusuka kwelinye icala, logama nje i-frequency yale optical signal ingaphakathi kwe-spectrum yale multimode laser, i-optical signal iya kwandiswa kwaye itshixwe kwimo ethile. Olu hlobo lwe-optical amplifier lubizwa ngokuba yi-injection-locked type amplifier (IL-SLA). Ukuba iziphelo ezibini ze-semiconductor laser zigqunywe ngesipili okanye zipheliswe ngomaleko wefilimu echasene nokukhanya, okwenza i-emissivity yayo ibe ncinci kakhulu kwaye ingakwazi ukwenza i-Fabry-Perrow resonant cavity, xa i-optical signal idlula kwi-active waveguide layer, iya kwandiswa ngelixa ihamba. Ke ngoko, olu hlobo lwe-optical amplifier lubizwa ngokuba yi-traveling wave type optical amplifier (TW-SLA), kwaye isakhiwo sayo siboniswe kumfanekiso olandelayo. Ngenxa yokuba i-bandwidth ye-traveling wave type optical amplifier inkulu kathathu kune-Fabry-Perot type amplifier, kwaye i-bandwidth yayo ye-3dB inokufikelela kwi-10THz, inokwandisa imiqondiso ye-optical yee-frequency ezahlukeneyo kwaye yi-optical amplifier ethembisayo kakhulu.
2. I-amplifier yefayibha exutywe ne-Bait: Iqulathe iinxalenye ezintathu: Eyokuqala yifayibha exutywe ne-doped enobude obuqala kwiimitha ezininzi ukuya kumashumi eemitha. Ezi zinto zingcolileyo ikakhulu zii-ion zomhlaba ezinqabileyo, ezenza izinto zokuvula i-laser; Eyesibini ngumthombo wepompo yelaser, onika amandla ee-wavelengths ezifanelekileyo ukuze kuvuselelwe ii-ion zomhlaba ezinqabileyo ezixutywe ne-doped ukuze kufezekiswe ukwandiswa kokukhanya. Eyesithathu yi-coupler, evumela ukukhanya kwepompo kunye nokukhanya kwesignali ukuba kudibane nezinto ezivuselela i-optical fiber. Umgaqo wokusebenza we-fiber amplifier ufana kakhulu nowe-solid-state laser. Ibangela imeko yokusasazwa kwenani lee-particle ngaphakathi kwezinto ezivuselela i-laser kwaye ivelise i-radiation evuselelweyo. Ukudala imeko yokusasazwa kwenani lee-particle ezinzileyo, kufuneka kubandakanyeke amanqanaba angaphezu kwamabini amandla kutshintsho lwe-optical, ngesiqhelo iinkqubo zamanqanaba amathathu kunye namanqanaba amane, kunye nokunikezelwa kwamandla okuqhubekayo okuvela kumthombo wepompo. Ukuze kubonelelwe ngamandla ngokufanelekileyo, ubude be-photon yepompo kufuneka bube mfutshane kune-photon yelaser, oko kukuthi, amandla e-photon yepompo kufuneka abe makhulu kune-photon yelaser. Ngaphezu koko, umngxuma ojikelezayo wenza impendulo entle, ngaloo ndlela kunokwenziwa i-laser amplifier.
3. Ii-amplifiers zefayibha ezingezizo ezilandelelanayo: Zombini ii-amplifiers zefayibha ezingezizo ezilandelelanayo kunye nee-amplifiers zefayibha ze-erbium ziwela phantsi kodidi lwee-amplifiers zefayibha. Nangona kunjalo, le yokuqala isebenzisa isiphumo esingezizo ezilandelelanayo seefayibha ze-quartz, ngelixa le yokugqibela isebenzisa iifayibha ze-quartz ezifakwe i-erbium ukuze isebenze kwimidiya esebenzayo. Iifayibha ze-quartz eziqhelekileyo ziya kuvelisa iziphumo ezinamandla ezingezizo ezilandelelanayo phantsi kwesenzo sokukhanya okunamandla kwepompo ye-wavelengths efanelekileyo, njenge-stimulated Raman scattering (SRS), i-stimulated Brillouin scattering (SBS), kunye neziphumo zokuxuba ezine-wave. Xa isignali idluliselwa kwi-optical fiber kunye nokukhanya kwepompo, ukukhanya kwesignali kunokwandiswa. Ngaloo ndlela, zenza ii-amplifiers zefayibha Raman (FRA), ii-amplifiers zeBrillouin (FBA), kunye nee-amplifiers ze-parametric, zonke ezizi-amplifiers zefayibha ezisasazwayo.
Isishwankathelo: Indlela eqhelekileyo yophuhliso lwazo zonke ii-amplifiers ze-optical kukufumana okuphezulu, amandla aphezulu okukhupha, kunye nomfanekiso ophantsi wengxolo.
Ixesha leposi: Meyi-08-2025