Txoj kev siv ntawmsemiconductor optical amplifier(SOA) yog raws li nram no:
SOA semiconductor optical amplifier yog siv dav hauv txhua qhov chaw ntawm lub neej. Ib qho ntawm cov lag luam tseem ceeb tshaj plaws yog kev sib txuas lus, uas muaj txiaj ntsig zoo rau kev xa xov thiab kev hloov pauv.SOA semiconductor optical amplifierkuj tseem siv los txhim kho lossis ua kom nrov dua cov teeb liab ntawm kev sib txuas lus fiber ntau ntev thiab yog lub zog ua kom pom kev zoo tseem ceeb heev.
Cov kauj ruam yooj yim ntawm kev siv
Xaiv qhov tsim nyogSOA optical amplifierRaws li cov xwm txheej thiab cov kev cai ntawm daim ntawv thov tshwj xeeb, xaiv lub SOA optical amplifier nrog cov yam ntxwv tsim nyog xws li wavelength ua haujlwm, qhov nce, lub zog tso zis saturated, thiab lub suab nrov. Piv txwv li, hauv cov kab ke sib txuas lus optical, yog tias yuav tsum ua kom lub teeb liab amplification hauv 1550nm band, lub SOA optical amplifier nrog lub wavelength ua haujlwm ze rau qhov ntau no yuav tsum tau xaiv.
Txuas txoj kev kho qhov muag: Txuas qhov kawg ntawm SOA semiconductor optical amplifier rau qhov chaw teeb liab kho qhov muag uas xav tau amplified, thiab txuas qhov kawg tso zis rau txoj kev kho qhov muag tom ntej lossis khoom siv kho qhov muag. Thaum txuas, them sai sai rau qhov kev sib txuas ntawm cov fiber ntau kho qhov muag thiab sim txo qhov poob ntawm qhov muag. Cov khoom siv xws li fiber optic couplers thiab optical isolators tuaj yeem siv los ua kom zoo dua kev sib txuas ntawm txoj kev kho qhov muag.
Teem lub bias tam sim no: Tswj qhov nce ntawm SOA amplifier los ntawm kev kho nws lub bias tam sim no. Feem ntau hais lus, qhov loj dua qhov bias tam sim no, qhov siab dua qhov nce, tab sis tib lub sijhawm, nws yuav ua rau muaj kev nce ntxiv ntawm suab nrov thiab kev hloov pauv ntawm lub zog tso zis saturated. Tus nqi bias tam sim no tsim nyog yuav tsum tau pom raws li qhov xav tau tiag tiag thiab cov kev ua tau zoo ntawmSOA amplifier.
Kev Saib Xyuas thiab Kev Kho: Thaum lub sijhawm siv, nws yog qhov tsim nyog los saib xyuas lub zog tso zis optical, qhov nce, suab nrov thiab lwm yam kev ntsuas ntawm SOA hauv lub sijhawm tiag tiag. Raws li cov txiaj ntsig kev saib xyuas, qhov tam sim no bias thiab lwm yam kev ntsuas yuav tsum tau kho kom ntseeg tau tias muaj kev ua haujlwm ruaj khov thiab lub teeb liab zoo ntawm SOA semiconductor optical amplifier.
Siv rau hauv ntau daim ntawv thov scenarios
Kev sib txuas lus kho qhov muag
Lub zog amplifier: Ua ntej lub teeb liab optical raug xa mus, lub SOA semiconductor optical amplifier raug muab tso rau ntawm qhov kawg xa mus kom nce lub zog ntawm lub teeb liab optical thiab txuas ntxiv qhov kev sib kis ntawm lub system. Piv txwv li, hauv kev sib txuas lus fiber ntau optical ntev, kev ua kom lub teeb liab optical amplifier los ntawm SOA semiconductor optical amplifier tuaj yeem txo cov chaw nres tsheb relay.
Kab amplifier: Hauv cov kab kis tau teeb pom kev zoo, SOA raug muab tso rau ntawm qee lub sijhawm kom them rau qhov poob los ntawm kev txo qis fiber ntau thiab cov khoom sib txuas, kom ntseeg tau tias qhov zoo ntawm cov teeb liab kho qhov muag thaum lub sijhawm kis mus deb.
Preamplifier: Ntawm qhov kawg tau txais, SOA raug muab tso rau pem hauv ntej ntawm lub receiver optical ua lub preamplifier los txhim kho lub receiver qhov rhiab heev thiab txhim kho nws lub peev xwm nrhiav tau rau cov teeb liab tsis muaj zog.
2. Lub kaw lus pom kev zoo
Hauv lub fiber Bragg grating (FBG) demodulator, SOA txhawb lub teeb liab optical mus rau FBG, tswj kev taw qhia ntawm lub teeb liab optical los ntawm lub circulator, thiab hnov cov kev hloov pauv ntawm qhov wavelength lossis lub sijhawm ntawm lub teeb liab optical los ntawm qhov kub thiab txias lossis kev hloov pauv ntawm lub zog. Hauv kev tshawb pom lub teeb thiab kev sib txawv (LiDAR), narrowband SOA optical amplifier, thaum siv ua ke nrog DFB lasers, tuaj yeem muab lub zog tso zis siab rau kev tshawb pom deb dua.
3. Kev hloov pauv ntawm qhov ntev ntawm lub zog
Kev hloov pauv ntawm qhov ntev ntawm lub teeb yog ua tiav los ntawm kev siv cov teebmeem nonlinear xws li cross-gain modulation (XGM), cross-phase modulation (XPM), thiab four-wave mixing (FWM) ntawm SOA optical amplifier. Piv txwv li, hauv XGM, lub teeb pom kev tsis muaj zog thiab lub teeb pom kev twj tso kua mis muaj zog raug txhaj rau hauv SOA optical amplifier tib lub sijhawm. Lub twj tso kua mis raug modulated thiab siv rau lub teeb pom kev los ntawm XGM kom ua tiav kev hloov pauv ntawm qhov ntev ntawm lub teeb.
4. Lub tshuab hluav taws xob kho qhov muag
Hauv kev sib txuas lus ceev ceev OTDM wavelength division multiplexing, mode-locked fiber ring lasers uas muaj SOA optical amplifier siv los tsim cov repetition rate wavelength-tunable pulses. Los ntawm kev kho cov kev teeb tsa xws li bias current ntawm SOA amplifier thiab modulation frequency ntawm laser, cov zis ntawm optical pulses ntawm ntau wavelengths thiab repetition frequencies tuaj yeem ua tiav.
5. Kev rov qab kho lub moos kho qhov muag
Hauv lub kaw lus OTDM, lub moos tau rov qab los ntawm cov teeb liab optical ceev ceev los ntawm cov voj voog theem-xauv thiab cov hloov kho qhov muag uas siv raws li SOA amplifier. Cov teeb liab cov ntaub ntawv OTDM tau txuas nrog daim iav SOA. Cov kab ke tswj hwm optical uas tsim los ntawm lub laser hom-xauv kho tau tsav daim iav nplhaib. Lub teeb liab tso zis ntawm daim iav nplhaib tau pom los ntawm photodiode. Lub zaus ntawm lub oscillator tswj voltage (VCO) raug xauv ntawm qhov zaus tseem ceeb ntawm cov teeb liab cov ntaub ntawv nkag los ntawm lub voj voog theem-xauv, yog li ua tiav kev rov qab kho lub moos optical.
Lub sijhawm tshaj tawm: Lub Xya Hli-15-2025