Chii chinonziamplifier ye optical ye semiconductor
Semiconductor optical amplifier rudzi rwe optical amplifier inoshandisa semiconductor gain medium. Yakafanana ne laser diode, umo girazi riri pazasi rinotsiviwa ne semi-reflective coating. Chiedza chechiratidzo chinopfuudzwa kuburikidza ne semiconductor single-mode waveguide. Dimension transverse ye waveguide i 1-2 micrometers uye kureba kwayo kuri pa 0.5-2mm. Waveguide mode ine connection yakakura nenzvimbo inoshanda (amplification), iyo inopombwa ne current. Injected current inogadzira carrier concentration yakati mu conduction band, zvichibvumira optical transition ye conduction band kuenda ku valence band. peak gain inoitika kana photon energy yakakura zvishoma pane bandgap energy. SOA optical amplifier inowanzo shandiswa muma telecommunication systems muchimiro che pigtails, ine operating wavelength inosvika 1300nm kana 1500nm, ichipa inenge 30dB ye gain.
Iyoamplifier yeSOA semiconductor opticalmudziyo wePN junction une chimiro che strain quantum well. Kutarisa kwekunze kunodzosera shure huwandu hwezvinhu zvine dielectric. Mushure mekunge chiedza chekunze chapinda, mwaranzi inomutswa inogadzirwa, zvichiita kuti zviratidzo zve optical zviwedzere. Maitiro ese matatu ekufambisa simba aripo muSOA optical amplifierKuwedzerwa kwezviratidzo zve optical kunobva pakuburitswa kwesimba. Kuwedzerwa kwesimba uye kuburitswa kwesimba kunovapo panguva imwe chete. Kuwedzerwa kwesimba kwechiedza chepombi kunogona kushandiswa kukurumidzisa kudzoreredzwa kwesimba, uye panguva imwe chete, pombi yemagetsi inogona kutumira maerekitironi kune simba rakawanda (conduction band). Kana mwaranzi inongoerekana yawedzerwa, inoumba ruzha rwemwaranzi inongoerekana yawedzerwa. SOA optical amplifier yakavakirwa pamachipisi e semiconductor.
Machipisi eSemiconductor anoumbwa nemacompound semiconductor, akadai seGaAs/AlGaAs, InP/AlGaAs, InP/InGaAsP uye InP/InAlGaAs, nezvimwewo. Izvi ndizvo zvinhu zvekugadzira ma semiconductor lasers. Dhizaini yeSOA ye waveguide yakafanana kana kuti yakafanana neyema lasers. Musiyano uri pakuti ma lasers anofanirwa kugadzira resonant cavity yakatenderedza gain medium kuti agadzire uye achengetedze oscillation ye optical signal. Optical signal ichawedzerwa kakawanda mu cavity isati yaburitswa.SOA amplifier(zvatiri kukurukura pano zvinongogumira kuma "traveling wave amplifiers" anoshandiswa muzvishandiso zvakawanda), chiedza chinongoda kupfuura nepakati pe "gain medium" kamwe chete, uye "backward reflection" hainyanyi kukosha. Maumbirwo eSOA amplifier ane nzvimbo nhatu: Area P, Area I (active layer kana node), uye Area N. active layer inowanzo umbwa ne quantum Wells, iyo inogona kuvandudza kushanda kwe photoelectric conversion uye kuderedza threshold current.
Mufananidzo 1: Laser yefiber ine SOA yakabatanidzwa yekugadzira mapuroteni ekuona
Inoshandiswa pakuchinjisa chiteshi
SOAs hadzingoshandiswi chete pakuwedzera simba: dzinogona kushandiswawo mumunda wekutaurirana kwe optical fiber, mashandisirwo akavakirwa pamaitiro asiri emutsara akadai se saturation gain kana cross-phase polarization, ayo anoshandisa mutsauko we carrier concentration mu SOA optical amplifier kuti awane ma refractive indices akasiyana. Izvi zvinogona kushandiswa pakuchinjana kwe channel (wavelength conversion), modulation format conversion, clock recovery, signal regeneration uye pattern recognition, nezvimwewo muma wavelength division multiplexing systems.
Nekufambira mberi kwetekinoroji yemagetsi yakabatana ye optoelectronic uye kudzikiswa kwemitengo yekugadzira, nzvimbo dzekushandisa dzeSOA semiconductor optical amplifier semaamplifiers ekutanga, zvishandiso zve optical zvinoshanda uye zvikamu zve subsystem zvicharamba zvichikura.
Nguva yekutumira: Chikumi-23-2025