IyoMach-Zehnder Modulator(MZ Modulator) chishandiso chakakosha chekugadzirisa zviratidzo zve optical zvichibva papfungwa yekupindira. Pfungwa yacho yekushanda ndeiyi inotevera: Pabazi rakaita seY pamagumo ekupinda, chiedza che input chinokamurwa kuita mafungu maviri echiedza uye chinopinda mumatanho maviri e optical parallel kuti chitumirwe zvakateerana. Nzira ye optical inogadzirwa nezvinhu zve electro-optic. Nekushandisa mukana we photoelectric effect yayo, kana chiratidzo chemagetsi chinoshandiswa kunze chichichinja, refractive index yezvinhu zvayo inogona kuchinjwa, zvichikonzera kusiyana kwakasiyana kwenzira ye optical pakati pemwenje miviri yechiedza ichisvika kubazi rakaita seY pamagumo ekubudisa. Kana zviratidzo zve optical mumatanho maviri e optical zvichisvika kubazi rakaita seY pamagumo ekubudisa, kusangana kuchaitika. Nekuda kwekunonoka kwakasiyana kwezvikamu zvezviratidzo zviviri zve optical, kupindira kunoitika pakati pazvo, zvichishandura ruzivo rwe phase difference rwunotakurwa nezviratidzo zviviri zve optical kuita ruzivo rwe intensity ye output signal. Nokudaro, basa rekugadzirisa zviratidzo zvemagetsi pa optical carriers rinogona kuitwa nekudzora ma parameter akasiyana e loading voltage yeMarch-Zehnder modulator.
Maparamita ekutanga eMZ Modulator
Maparamita ekutanga eMZ Modulator anokanganisa zvakananga mashandiro emodulator mumamiriro akasiyana-siyana ekushandisa. Pakati pawo, maparamita akakosha e optical uye maparamita emagetsi ndeaya anotevera.
Maparamita ekuona:
(1) Optical bandwidth (3db bandwidth): Frequency range kana frequency response amplitude inoderera ne3db kubva pahuwandu hwakanyanya, unit iri Ghz. Optical bandwidth inoratidza frequency range yesignal kana modulator ichishanda zvakanaka uye iparameter yekuyera kugona kwekutakura ruzivo rweoptical carrier mumodulator yemagetsi-optic.
(2) Chiyero chekupera: Chiyero chekubuda kwesimba guru remagetsi rinobuda ne electro-optic modulator kune simba shoma remagetsi rinobuda, neyuniti ye dB. Chiyero chekupera iparameter yekuongorora kugona kwe electro-optic switch ye modulator.
(3) Kurasikirwa nekudzoka: Chiyero chesimba rechiedza rinoratidzwa pamagumo ekupinda kwemodulatorkune simba remwenje rinopinda, neyuniti ye dB. Kurasikirwa kwekudzoka iparameter inoratidza simba rechiitiko rinodzoserwa kumashure kune kwakabva chiratidzo.
(4) Kurasikirwa nekuisa: Chiyero chesimba remagetsi rinobuda nesimba remagetsi rinopinda remodulator kana rasvika pasimba rayo guru rekubuda, unit iri dB. Kurasikirwa nekuisa chiratidzo chinoyera kurasikirwa kwesimba remagetsi kunokonzerwa nekuisa nzira yemagetsi.
(5) Simba guru rekushandisa magetsi: Munguva yekushandiswa kwakajairika, simba rekushandisa magetsi reMZM Modulator rinofanira kunge riri pasi pemutengo uyu kudzivirira kukuvara kwemuchina, unit yacho iri mW.
(6) Kudzika kwekuchinja: Inoreva chiyero chehukuru hwechiratidzo chekuchinja kune hukuru hwemutakuri, chinowanzo ratidzwa sechikamu.
Magadzirirwo emagetsi:
Voltage yehafu-wave: Inoreva musiyano wevoltage unodiwa kuti voltage inotyaira ichinje modulator kubva pa off state kuenda pa on state. Simba re optical rinobuda reMZM Modulator rinosiyana-siyana nekuchinja kwe bias voltage. Kana modulator output ikaita 180-degree phase difference, musiyano we bias voltage unoenderana ne adherent minimum point uye maximum point i half-wave voltage, ne unit ye V. Iyi parameter inotsanangurwa nezvinhu zvakaita sezvinhu, chimiro uye maitiro, uye i inherent parameter yeModulator yeMZM.
(2) Voltage yepamusoro yeDC bias: Munguva yekushandiswa kwakajairika, voltage yekupinda bias yeMZM inofanira kunge iri pasi peiyi value kudzivirira kukuvara kwemudziyo. Unit yacho ndeye V. Voltage yeDC bias inoshandiswa kudzora mamiriro ebias emodulator kuti ienderane nezvinodiwa zvakasiyana zvemodulation.
(3) Kukosha kukuru kweRF signal: Munguva yekushandiswa kwakajairika, input RF electrical signal yeMZM inofanira kunge iri pasi peiyi value kudzivirira kukuvara kwemudziyo. Unit yacho ndiV. Radio frequency signal i electrical signal inofanira kugadziriswa pa optical carrier.
Nguva yekutumira: Chikumi-16-2025