Microwave Optoelectronics, raws li lub npe qhia, puas yog kev sib tshuam ntawm microwave thiabOptoelectronicsCov. Microwaves thiab lub teeb ntas hluav taws xob muaj hluav taws xob hluav taws xob, thiab cov zaus muaj ntau cov kev txiav txim siab sib txawv, thiab cov khoom siv ua hauv lawv cov teb muaj ntau. Hauv kev sib xyaw ua ke, peb tuaj yeem siv tau txhua lwm yam, tab sis peb tuaj yeem tau txais cov ntawv thov tshiab thiab cov yam ntxwv uas tsis yooj yim rau kev paub.
Kev Sib Txuas LusYog tus piv txwv ua piv txwv ntawm kev sib xyaw ntawm microwaves thiab phototrons. Kev sib txuas lus thaum ntxov thiab Telegraph Wireless kev sib txuas lus, tiam neeg, kev tshaj tawm thiab txais tos cov cim, tag nrho cov khoom siv microwave. Tsawg zaus hauv hluav taws xob hluav taws xob siv hluav taws xob tau siv thaum pib vim qhov ntau zaus yog qhov me me thiab cov channel ntau rau kis tau me me. Qhov kev daws teeb meem yog kom nce qhov ntau ntawm lub teeb liab sib kis, ntau dua zaus, ntau cov peev txheej. Tab sis lub siab siab zaus teeb liab nyob rau hauv cov huab cua hais tias poob yog loj, tab sis kuj yooj yim thaiv los ntawm cov nyom. Yog tias siv cable siv, qhov ploj ntawm lub cable yog qhov loj, thiab kev sib kis ntev yog ib qho teeb meem. Qhov tshwm sim ntawm kev sib txuas lus fiber ntau yog cov tshuaj zoo rau cov teeb meem no.Kho Qhov Muag FiberMuaj kev sib kis tau tsawg thiab yog cov cab kuj zoo rau kev xa cov paib dhau mus deb. Cov zaus ntau ntawm lub teeb vuag yog ntau dua li ntawm cov microwaves thiab tuaj yeem xa ntau yam raws sib txawv ib txhij. Vim hais tias ntawm cov txiaj ntsig zoo ntawmKev kis rau qhov muag, Kev sib txuas lus Fiber ntau tau ua dhau los ua tus caj qaum ntawm cov ntaub ntawv niaj hnub no.
Kev sib txuas lus kho qhov muag muaj keeb kwm ntev, kev tshawb nrhiav thiab cov ntawv thov muaj ntau heev thiab paub tab, ntawm no tsis yog hais ntxiv. This paper mainly introduces the new research content of microwave optoelectronics in recent years other than optical communication. Microwave OptoelectRonics feem ntau siv cov hau kev thiab thev naus laus zis nyob rau OptoelectRonic zoo li cov cab kuj thiab daim ntawv thov uas yog qhov nyuaj ua kom tiav nrog cov kev ua hluav taws xob microwave hluav taws xob. Los ntawm cov kev pom ntawm daim ntawv thov, nws tsuas yog suav nrog peb yam hauv qab no.
Qhov thib ib yog kev siv Optoelectronics los tsim cov kev ua tau zoo, cov suab nrov microwave microwave, los ntawm x-band txhua txoj kev mus rau cov thz band.
Thib ob, microwave teeb liab ua. Suav nrog qeeb, lim, hloov dua siab, ntau zaus, tau txais thiab lwm yam.
Thib peb, cov kis tau ntawm analog cov cim.
Hauv tsab xov xwm no, tus sau tsuas yog nthuav qhia thawj feem, tiam ntawm lub microwave teeb liab. Tsoos Microwave millimeter millimeter millime yoj yog tsim los ntawm III_V microelectronic ib txwm muaj. Nws cov kev txwv muaj cov ntsiab lus hauv qab no: Ua ntej, kom nquag nquag xws li 100ghz saum toj no tuaj yeem tsim cov cim tsawg dua thz teeb liab, lawv tuaj yeem ua tsis tau dab tsi. Thib ob, kom txo qis theem suab nrov thiab txhim kho ntau cov khoom ruaj khov, cov cuab yeej thawj yuav tsum tau muab tso rau hauv ib puag ncig kub tsawg kawg nkaus. Thib peb, nws nyuaj rau ua tiav ntau zaus ntau zaus kev hloov pauv ntau zaus. Txhawm rau daws cov teeb meem no, Optoelectronic thev naus laus zis tuaj yeem ua lub luag haujlwm. Cov hau kev tseem ceeb tau piav qhia hauv qab no.
1. Los ntawm qhov sib txawv zaus ntawm ob zaus laser teeb liab, ib qho high-zaus cov ntawv sau siv los hloov cov cim microwave, raws li muaj nyob hauv daim duab 1.
Daim duab 1. Schematic daim duab ntawm microwaves tsim los ntawm qhov sib txawv zaus ntawm oblasers.
Qhov zoo ntawm txoj kev no yog cov qauv yooj yim, tuaj yeem tsim cov teeb meem kub zaus thiab txawm tias kev hloov kho ntau zaus ntawm kev hloov pauv ntau zaus, hloov qhov ntau zaus. Qhov tsis zoo yog tias lub kab lossis lub suab nrov nrov ntawm cov teeb meem Laser Laser Laser Laser Laser me me siv. Yog tias lub cev hnyav ntim yuav tsum tsis siab, koj tuaj yeem siv lub suab qis (~ khz) cov nyom-lub xeev cov lasers,coers, sab nraud kab noj hniavlasmicoductor lasers, etc. Ntxiv rau, ob hom kev sib txawv ntawm cov cim zeb laser tau tsim los ua kom muaj qhov sib txawv zaus, yog li ntawd lub microwave ntog kev ua tau ruaj khov ua tau zoo heev.
2. Txhawm rau daws cov teeb meem uas ob lub lasers nyob rau hauv cov txheej txheem dhau los yog loj heev ntawm ob lub lasers tuaj yeem tau los ntawm kev txhaj tshuaj tiv thaiv theem lossis cov theem tsis zoo Xauv Circuit Court. Daim duab 2 qhia ib daim ntawv thov uas tau txhaj tshuaj kom tsim tau MICOWASE MERULTAVES (daim duab 2). Los ntawm kev tiv thaiv loj tam sim no cov cim rau hauv cov kab zauv laser, lossis los ntawm kev siv cov kab sib luag nrog cov khoom sib luag tau tsim tawm, lossis zaus muaj qhov muag tau sib tw. Ntawm chav kawm, feem ntau siv txoj kev kom tau txais ntau lub zog saib xyuas kev siv hluav taws xob ntau tshaj plaws yog siv cov hom-kaw laser. Txhua ob qho kev ntsuas ntawm cov cim hluav taws xob hauv cov khoom tsim kho tau zoo zuag yog xaiv los ntawm kev lim thiab txhaj rau hauv laser 1 thiab 2 kom paub ntau zaus thiab theem ntsuas phoo. Vim tias theem ntawm cov cim sib txawv ntawm cov txheej txheem kho qhov muag sib txawv raws li tau piav qhia ua ntej, ntau lub foldager zaus microwave teeb liab ntawm lub Qhov muag ua haujlwm ntawm kev rov ua dua qhov rov ua dua tus nqi tuaj yeem tau txais.
Daim duab 2. Schematic Daim duab ntawm microwave zaus dougling teeb tsa generated los ntawm kev txhaj tshuaj ntsuas phoo.
Lwm txoj hauv kev los txo cov txheeb ze theem ntawm ob lub lasers yog siv cov lus tsis zoo kho qhov muag, raws li muaj nyob hauv daim duab 3.
Daim duab 3. Schematic daim duab ntawm OPL.
Lub hauv paus ntsiab lus ntawm Optical pll yog zoo ib yam li ntawd ntawm PLL hauv teb ntawm electronics. Theem sib txawv ntawm ob lub lasers hloov dua tshiab los ntawm cov qauv hluav taws xob (sib piv rau theem sib txawv), thiab tom qab ntawd theem sib txawv nrog cov kev siv microwave teeb liab qhov chaw, uas yog nthuav dav Thiab tau lim thiab tom qab ntawd pub rov qab rau cov zaus tswj hwm ntawm ib qho ntawm cov lasers (rau cov laserstoructor, nws yog kev txhaj tshuaj tam sim no). Los ntawm xws li cov lus tsis zoo tswj lub voj, cov ntu txheeb ze ntawm cov theem ntawm ob lub teeb ci tau xauv rau cov ntsuas microwave. Lub teeb liab sib xyaw ua ke tuaj yeem kis tau los ntawm Optical fibers rau lub photodetector lwm qhov thiab hloov mus rau hauv lub microwave teeb liab. Lub suab nrov ntawm lub microwave teeb liab yog yuav luag zoo ib yam li uas ntawm cov teeb liab siv nyob rau hauv bandwidth ntawm theem-xauv cov lus pom tsis zoo. Lub sij hawm theem sab nraum lub bandwidth yog sib npaug rau cov txheeb ze lub suab nrov ntawm tus thawj ob lub sijhawm uas tsis cuam tshuam.
Ib qho ntxiv, kev siv microwave teeb liab tseem tuaj yeem hloov dua lwm zaus, yog li muaj ntau zaus ua haujlwm thiab hloov dua siab tshiab RF, thz teeb liab.
Piv rau kev txhaj tshuaj tiv thaiv lub zog tsuas yog tau txais kev sib tw sib npaug, theem-xauv loops, tuaj yeem hloov tau ntau dua, tuaj yeem hloov tau ntau zaus, thiab tau yooj yim ntau cov nyom. Piv txwv li, lub zog kho qhov muag tau muab los ntawm cov duab thaij duab hauv daim duab 2 yog siv los xaiv lub zog ntsuas ntawm ob lub laser sib tw paib, thiab tom qab ntawd tsim Cov teeb meem siab tshaj tawm los ntawm qhov sib txawv zaus, raws li muaj nyob hauv daim duab 4. F2 yog cov teeb meem siv zaus ntawm ob pawg plls feem, thiab lub teeb liab microwave ntawm N * FREP + F1 + F2 tuaj yeem tsim los ntawm cov zaus sib txawv ntawm ob lub lasers.
Daim duab 4. Schematic daim duab ntawm cov tsim kev txwv tsis pub siv cov khoom siv kho qhov muag ntau dua thiab cov PLLS.
3. Siv hom kev xauv tes rau ntawm mem tes los hloov kho kho qhov kho kab ntsuas kev kho kho rau hauv lub microwave teeb liab los ntawmphotodetector.
Lub ntsiab zoo ntawm hom no yog tias lub teeb liab nrog ntau zaus ruaj khov thiab theem qis heev hauv lub suab muaj peev xwm tau txais. Los ntawm xauv cov zaus ntawm lub laser mus rau qhov chaw ruaj khov kho mob, thiab kev hloov pauv tus kheej, peb tuaj yeem tau txais cov txheej txheem ruaj khov kho tshiab heev nrog Ib qho kev rov ua tau ruaj khov tshaj plaws zaus, yog li kom tau txais microwave teeb liab nrog cov suab nrov ultra. Daim duab 5.
Daim duab 5. Sib piv ntawm cov neeg txheeb ze theem suab nrov ntawm cov teeb meem sib txawv.
Txawm li cas los xij, vim tias cov mem tes repetitionals yog kab ke ib txwm-xauv kom tau muaj ntau ntau lub microwave qhia ncaj qha. Ib qho ntxiv, qhov loj me, qhov hnyav thiab kev siv nyiaj ntawm cov tsoos, raws li qhov kev xav tau thiab cov ntawv thov kev kuaj ib puag ncig. Yuav kom kov yeej cov kev nyuaj no, kev tshawb fawb tsis ntev los no siv cov kab ke me me, cov khoom siv tau tsim kho qhov muag ntau dua tshiab
4. Opto Electronic oscillator, Daim Duab 6.
Daim duab 6. Schematic Daim Duab Ntawm Photoelectric Txuas Txuas oscillator.
Ib qho ntawm cov txheej txheem ib txwm muaj ntawm cov lus qhia lossis lasers yog siv lub voj kaw, ntev npaum li qhov poob qis dua li qhov ploj, tus kheej zoo siab oscillation tuaj yeem tsim cov microwaves lossis lasers. Lub siab dua qhov zoo tshaj qhov Q ntawm lub voj kaw, cov me dua cov teeb liab theem lossis suab nrov. Txhawm rau kom nce qhov zoo ntawm lub voj, txoj kev ncaj yog kom nce lub voj ntev thiab txo qhov kev sib tw poob. Txawm li cas los xij, lub voj ntev ntev feem ntau tuaj yeem txhawb lub cim ntawm oscillation, thiab yog tias lub cev nqaim-bandwidh Kev photherectric txuas oscillator yog lub microwave teeb tsa cov yam ntxwv poob raws li cov tswv yim no, tuaj yeem tsim lub teeb liab microwave nrog lub suab tsis tshua muaj zog. Txij li cov txheej txheem tau npaj tseg rau xyoo 1990, hom Oscillator tau txais thiab kev txhim kho kev lag luam ntau ntxiv, thiab tam sim no yuav ua lag luam Photoelectric txuas cov oscillators. Tsis ntev los no tsis ntev los no, photcaticators uas muaj duab photcillator uas nws nquag tuaj yeem hloov kho tau ntau qhov kev tsim. Qhov teeb meem tseem ceeb ntawm microwave teeb liab cov khoom raws li tus architecture no yog tias lub voj ntev ntev (FSR) thiab nws ob zaug yuav nce ntxiv. Ib qho ntxiv, cov yees duab yees duab siv tau ntau dua, cov nqi yog qhov siab, thiab muaj cov fiber ntau dua yog kev nkag siab ntxiv rau ib puag ncig.
Cov lus qhia saum toj no qhia ntau txoj hauv kev ntawm Photoelectron cov cim ntawm microwave cim, raws li lawv cov txiaj ntsig thiab qhov tsis zoo. Thaum kawg, kev siv duab yees duab los tsim lub microwave muaj lwm qhov kev hloov kho tau muab faib rau hauv lub davhlau ya nyob twg, thiab muaj peev xwm hloov dua siab tshiab rau hauv lub ntsuas hluav taws xob, thiab muaj peev xwm hloov pauv hluav taws xob Kev cuam tshuam tau cuam tshuam ntau dua li cov hluav taws xob ua hluav taws xob.
Kev sau ntawv ntawm tsab xov xwm no yog siv rau kev siv, thiab ua ke nrog tus sau phau ntawv tshawb fawb thiab kev paub hauv daim teb no, muaj qhov tsis muaj tseeb thiab nkag siab.
Lub Sijhawm Post: Jan-03-2024