Dab tsi yog lub semiconductor optical amplifier

Dab tsi yog ib qhosemiconductor optical amplifier

Lub tshuab hluav taws xob semiconductor optical amplifier yog ib hom tshuab hluav taws xob optical amplifier uas siv cov khoom siv hluav taws xob semiconductor gain medium. Nws zoo ib yam li lub laser diode, uas daim iav ntawm qhov kawg qis dua hloov nrog ib txheej semi-reflective. Lub teeb liab raug xa mus los ntawm lub semiconductor single-mode waveguide. Qhov ntev ntawm lub waveguide yog 1-2 micrometers thiab nws qhov ntev yog nyob rau ntawm qhov kev txiav txim ntawm 0.5-2 hli. Hom waveguide muaj qhov sib tshooj tseem ceeb nrog thaj chaw nquag (amplification), uas yog pumped los ntawm tam sim no. Lub tam sim no txhaj tshuaj tsim ib qho kev sib sau ua ke hauv cov kab conduction, tso cai rau kev hloov pauv optical ntawm cov kab conduction mus rau cov kab valence. Qhov nce siab tshaj plaws tshwm sim thaum lub zog photon loj dua me ntsis dua li lub zog bandgap. SOA optical amplifier feem ntau yog siv hauv cov kab ke sib txuas lus hauv daim ntawv ntawm pigtails, nrog rau qhov wavelength ua haujlwm nyob ib puag ncig 1300nm lossis 1500nm, muab kwv yees li 30dB ntawm qhov nce.

LubSOA semiconductor optical amplifieryog ib lub cuab yeej sib txuas PN nrog lub qauv quantum zoo. Qhov kev cuam tshuam sab nraud rov qab tig tus lej ntawm cov khoom dielectric. Tom qab lub teeb sab nraud nkag mus, cov hluav taws xob stimulated raug tsim, ua tiav qhov kev nthuav dav ntawm cov teeb liab optical. Tag nrho peb cov txheej txheem hloov pauv zog saum toj no muaj nyob rau hauvSOA optical amplifier. Kev ua kom cov teeb liab pom kev zoo dua yog raws li kev tso tawm uas raug txhawb. Cov txheej txheem kev nqus thiab kev tso tawm uas raug txhawb muaj nyob tib lub sijhawm. Kev nqus ntawm lub twj tso kua mis lub teeb tuaj yeem siv los ua kom cov neeg nqa khoom rov qab sai dua, thiab tib lub sijhawm, lub twj tso kua mis hluav taws xob tuaj yeem xa cov hluav taws xob mus rau qib siab zog (conduction band). Thaum cov hluav taws xob tshwm sim tas li raug nthuav dav, nws yuav tsim cov suab nrov tawg tas li. ‍SOA optical amplifier yog raws li cov chips semiconductor.

Cov chips semiconductor yog tsim los ntawm cov khoom sib xyaw ua ke, xws li GaAs / AlGaAs, InP / AlGaAs, InP / InGaAsP thiab InP / InAlGaAs, thiab lwm yam. Cov no kuj yog cov ntaub ntawv rau kev ua cov lasers semiconductor. Tus qauv tsim waveguide ntawm SOA yog tib yam li lossis zoo ib yam li cov lasers. Qhov sib txawv nyob rau hauv tias lasers yuav tsum tsim ib lub qhov resonant nyob ib puag ncig qhov nce nruab nrab los tsim thiab tswj lub oscillation ntawm lub teeb liab optical. Lub teeb liab optical yuav raug amplified ntau zaus hauv lub qhov ua ntej raug tso tawm. HauvSOA amplifier(qhov peb tab tom tham txog ntawm no tsuas yog txwv rau cov amplifiers nthwv dej uas siv rau hauv feem ntau daim ntawv thov), lub teeb tsuas yog yuav tsum dhau los ntawm qhov nce nruab nrab ib zaug, thiab qhov kev cuam tshuam rov qab yog qhov tsawg heev. Cov qauv SOA amplifier muaj peb thaj chaw: Cheeb Tsam P, Cheeb Tsam I (txheej txheem lossis node), thiab Cheeb Tsam N. Cov txheej txheem nquag feem ntau yog tsim los ntawm quantum Wells, uas tuaj yeem txhim kho qhov kev hloov pauv photoelectric thiab txo qhov tam sim no.

Daim Duab 1 Fiber laser nrog integrated SOA rau kev tsim cov optical pulses

Siv rau kev hloov pauv channel

SOAs feem ntau tsis yog siv rau kev ua kom nrov xwb: lawv kuj siv tau rau hauv kev sib txuas lus fiber ntau, cov ntawv thov raws li cov txheej txheem nonlinear xws li kev nce qib lossis kev sib hloov ntawm theem polarization, uas siv qhov sib txawv ntawm cov neeg nqa khoom hauv SOA optical amplifier kom tau txais cov ntsuas refractive sib txawv. Cov teebmeem no tuaj yeem siv rau kev hloov pauv channel (wavelength conversion), modulation format conversion, moos rov qab, teeb liab rov qab thiab kev lees paub tus qauv, thiab lwm yam hauv wavelength division multiplexing systems.

Nrog kev nce qib ntawm cov thev naus laus zis optoelectronic integrated circuit thiab kev txo cov nqi tsim khoom, cov teb thov ntawm SOA semiconductor optical amplifier ua cov amplifiers yooj yim, cov khoom siv kho qhov muag ua haujlwm thiab cov khoom siv subsystem yuav txuas ntxiv nthuav dav.