I-Optoelectronictronictronictronic esekelwe kwi-actoelectonicIQ ModulatorNgokuxhumana okubumbene kakhulu
Isidingo esandayo samazinga okuhambisa idatha aphezulu kanye nokudluliselwa ngamandla amandla ezikhungweni zedatha kuqhubekele ekuthuthukisweni kokusebenza okuphezulu okuphezuluAmamodeli we-Optical Modulators. I-Silicon based Optoelectronic Technology (Siph) isibe yiplatifomu ethembisayo yokuhlanganisa izakhi ezahlukahlukene ze-Photonic eChip eyodwa, inika amandla izixazululo ezihlangene nezingabizi. Lo mbhalo uzohlola inoveli ye-Aricon IQ Modulator esekelwe kuma-gesi we-GESI, angasebenza ngokuvama okufika ku-75 Gbaud.
Idizayini yedivayisi nezimpawu
Isimonyo se-IQ esihlongozwayo samukela isakhiwo sezingalo ezintathu, njengoba kukhonjisiwe kuMfanekiso 1 (a). Iqanjwe ngo-Gesi Eam amathathu kanye namashifu wesigaba sabafundi abathathu we-Thermo optical, amukele ukucushwa okufanayo. Ukukhanya kokufakwa kuhambisana ne-chip ngokusebenzisa coupler coupler (GC) futhi kuhlukaniswe ngezindlela ezintathu nge-1 × 3 multimode interferometer (MMI). Ngemuva kokudlula esigodini kanye nesigaba esishintshiwe, ukukhanya kuphakanyiswe ngenye i-1 × 3 MMI bese kuthi kuhlanganiswe kwi-fiber eyodwa yemodi eyodwa (SSMF).
Umdwebo 1: (a) Izithombe ze-Microscopic ze-IQ Modulator; . (e) umdwebo we-schematic we-IQ Modulator kanye nesigaba esihambelana nesigaba seSigaba Shifter; (f) ukumelwa kokucindezela kwenkampani yenethiwekhi endizeni eyinkimbinkimbi. Njengoba kukhonjisiwe kuMdwebo 1 (B), i-Gesi Eam ine-bandwidth ebanzi ye-electro-optic. Umdwebo 1 (B) ulinganise ipharamitha ye-S21 yesakhiwo esizohlolwa esingu-Gesi Eam esingu-67 GHZ Optical Contencent Analyzer (LCA). Izibalo 1 (c) no-1 (d) zibonisa ngokulandelana isimo se-static settnction ratio (er) spectra kuma-voltages ahlukene we-DC kanye nokudluliselwa endaweni yama-nanometers ayi-1555.
Njengoba kukhonjisiwe kuMdwebo 1 (E), isici esiyinhloko salolu daba yikhono lokucindezela abathwali be-Optical ngokulungisa isigaba esihlanganisiwe esisengalweni ephakathi. Umehluko wesigaba phakathi kwezingalo eziphezulu nangaphansi yi-π / 2, esetshenziselwa ukuhleleka okuyinkimbinkimbi, ngenkathi umehluko wesigaba phakathi kwengalo ephakathi - π / 4. Lokhu kucushwa kuvumela ukuphazamiseka okubhubhisayo kumthwali, njengoba kukhonjisiwe endizeni eyinkimbinkimbi yesithombe 1 (F).
Ukusetha Komhloliso Nemiphumela
Ukusetha okusheshayo okusheshayo kuboniswa kuMfanekiso 2 (a). I-generator ye-waverary ye-waverary (i-keysight M8194A) isetshenziswa njengomthombo wesiginali, kanye nezigaba ezimbili ezingama-60 ze-GHZ ezifanisiwe (ezinama-bias adididi I-BOSTTAGE yamandla ka-Bias we-Gesi Eam ngu -2.5 v, futhi ikhebula le-RF elifanisiwe lisetshenziselwa ukunciphisa i-mismanch ephakathi nendawo phakathi kweziteshi ze-I ne-Q.
Umdwebo 2: (a) Ukusetha okuyisivinini okuphezulu, (b) ukucindezelwa kwe-carriers ephezulu ku-70 GBAUD, (C) isilinganiso samaphutha kanye nesilinganiso sedatha, (d) umlaza ku-70 Gbaud. Sebenzisa i-cavity laser ye-cavity yangaphandle (ecl) nge-linewidth ka-100 KHZ, i-wavelength ka-1555 nm, namandla ayi-12 dbm njengoba ophethe. Ngemuva kokushintshashintsha, isiginali ye-Optical ikhulisiwe usebenzisa iI-erbium-doped fiber amplifier(Edfa) ukunxephezela ukulahleka kwe-in-Chip coupling nokulahleka kokufaka kwesimo.
Ekupheleni kokuthola, i-Optical Spectrum Analyzer (OSA) iqapha i-Signal Spectrum kanye nokucindezela kwenkampani, njengoba kukhonjisiwe kuMfanekiso 2 (b) ngesiginali engu-70 Gbaud. Sebenzisa isitholi esinomqalisi esibumbanayo esimbaxambili sokuthola amasiginali, aqukethe i-90 degree mixer nezinye ezineI-40 GHZ PhotoDodiones, futhi ixhumeke ku-33 GHZ, i-80 GSA / s real-time oscilloscope (RTO) (KEYSINIGHY DSOZ634A). Umthombo wesibili we-ECL one-linewidth ka-100 KHZ usetshenziswa njenge-oscillator yendawo (bheka). Ngenxa ye-transmitter esebenza ngaphansi kwezimo ze-polarization eyodwa, iziteshi ezimbili kuphela ezisetshenziselwa ukuguqulwa kwe-analog kuya ku-digital (ADC). Imininingwane iqoshwa ku-RTO futhi icutshungulwe kusetshenziswa iprosesa yesiginali yedijithali engaxhunyiwe ku-inthanethi (DSP).
Njengoba kukhonjisiwe kuMdwebo 2 (C), i-IQ Modulator ihlolwe kusetshenziswa ifomethi yokushintshashintsha ye-QPSK kusuka ku-40 Gbaud kuya ku-75 Gbaud. Imiphumela ikhombisa ukuthi ngaphansi kuka-7% izinqumo ezinzima zokulungiswa kwephutha (HD-FEC), isilinganiso singafinyelela ku-140 GB / s; Ngaphansi kwesimo esingu-20% isinqumo esithambile sesinqumo sokulungiswa kwephutha (SD-FEC), ijubane lingafinyelela ku-150 GB / s. Umdwebo we-Constellation ku-70 GBAUD ukhonjiswa kuMfanekiso 2 (d). Umphumela ulinganiselwe i-Oscilloscope Bandwidth ka-33 GHZ, elingana nomkhawulokudonsa wesiginali wabalingani abangama-66.
Njengoba kukhonjisiwe kuMfanekiso 2 (B), isakhiwo ezintathu ingalo singacindezela ngempumelelo abathwali be-Optical ngezinga elingenalutho elidlula i-30 DB. Lesi sakhiwo asidingi ukucindezelwa okuphelele kwesithwali futhi singase sisetshenziselwe abathola ukuthi badinga amathoni ethwala ukuze uthole amasiginali, anjenge-Kramer Kronig (KK) abamukeli. Isithwali singashintshwa ngesigaba sesigaba esiphakathi se-arm ukufezekisa isithwali esifunayo esilinganisweni (CSR).
Izinzuzo kanye nezinhlelo zokusebenza
Qhathanisa nama-modulators we-mach zehnder endabuko (Modulators we-MZM) Amanye ama-modulators we-Silicon asekelwe kwi-IQ, i-Silicon IQ Modulator ehlongozwayo inezinzuzo eziningi. Okokuqala, icwebezela ngosayizi, ngaphezu kwezikhathi eziyi-10 incane kune-IQ Modulators ngokususelwaAma-Modulators weMach Zehnder. Okwesibili, idizayini ye-electrode ene-stacked ayidingi ukusetshenziswa kwabaphikisi be-terminal, ngaleyo ndlela banciphise amandla wedivayisi namandla ngakunye. Okwesithathu, amandla okucindezela wenkampani akhulisa ukuncishiswa kwamandla okuhambisa, athuthukise ukusebenza kwamandla.
Ngaphezu kwalokho, i-bandwidth yokubona i-GESI EAM ibanzi kakhulu (ngaphezulu kwama-nanometers angama-30), isusa isidingo semibuthano yokulawula impendulo ye-multines yokulawula kanye nama-processors ukuze ivumelanise ukuqina kwama-modulators (MRMS), ngaleyo ndlela yenza lula ukwakheka kwe-microwave (MRMS), ngaleyo ndlela kube lula ukwakheka.
Le modulator ehambisanayo ye-IQ ilungele kakhulu isizukulwane esilandelayo, ukubala kwesiteshi esiphakeme, kanye nokudluliselwa okuncane okubumbene kwizikhungo zedatha, kunika amandla ukuxhumana okuphezulu kakhulu.
Isimokidi se-silicon IQ Modulator esicindezelwe sibonisa ukusebenza okuhle, ngesilinganiso sokudlulisa idatha esifinyelela ku-150 GB / s ngaphansi kwezimo ezingama-20% ze-FEC. Isakhiwo saso se-compact 3-arm esekwe ku-GES EAM sinezinzuzo ezinkulu ngokuya nge-Footprint, amandla amandla okusebenza kwamandla, kanye nokwenza lula ukuklama. Le modulator inamandla okucindezela noma ukulungisa i-Optical Carriers futhi ingahlanganiswa nokutholwa kokubumbana kanye ne-Kramer Kronig (kk) izikimu zokutholwa kokutholwa kwemigqa eminingi Impumelelo ebonisiwe ishayela ukugcwaliseka kokudluliselwa okuhlanganiswe kakhulu futhi okusebenzayo kokuhlangabezana nesidingo esikhulayo sokuxhumana kwedatha ephezulu kwezikhungo zedatha nakwezinye izinkambu.
Isikhathi Seposi: Jan-21-2025