Kumvetsetsa kwathunthu kwa ma electro-optic modulators

Kumvetsetsa kwathunthu kwa ma electro-optic modulators
Electro-optic modulator (EOM) ndi chosinthira cha electro-optic chomwe chimagwiritsa ntchito zizindikiro zamagetsi kuti ziwongolere zizindikiro za kuwala, zomwe zimagwiritsidwa ntchito makamaka mu njira yosinthira ma siginecha mu gawo laukadaulo wamatelefoni.
Zotsatirazi ndikuyambitsa mwatsatanetsatane kwa electro-optic modulator:
1. Mfundo yofunikira yaelectro-optic modulezimachokera ku electro-optic effect, ndiko kuti, index refractive ya zinthu zina idzasintha pansi pa ntchito ya magetsi ogwiritsidwa ntchito. Pamene mafunde owala amadutsa mu makhiristo awa, makhalidwe ofalitsa amasintha ndi magetsi. Pogwiritsa ntchito mfundo imeneyi, gawo, matalikidwe kapena polarization boma lakuwalachizindikiro akhoza kuwongoleredwa ndi kusintha ntchito magetsi munda.
2. Kapangidwe ndi kapangidwe ka Electro-optical modulators nthawi zambiri amakhala ndi njira zowonera, ma amplifiers, zosefera ndi zosinthira zithunzi. Kuonjezera apo, imaphatikizapo zigawo zikuluzikulu monga madalaivala othamanga kwambiri, optical fibers ndi piezoelectric crystals. Mapangidwe a electro-optic modulator amatha kusiyanasiyana malinga ndi momwe amasinthira ndi zofunikira zake, koma nthawi zambiri amakhala ndi magawo awiri: electro-optic inverter module ndi photoelectric module module.
3. Modulation mode Electro-optic modulator ili ndi mitundu iwiri yayikulu:kusintha kwa gawondi kusinthasintha kwamphamvu. Kusintha kwa gawo: Gawo la chonyamulira limasintha pomwe siginecha yosinthidwa ikusintha. Mu Pockels electro-optic modulator, kuwala kwa carrier-frequency kupyola mu kristalo wa piezoelectric, ndipo pamene magetsi osinthidwa agwiritsidwa ntchito, malo amagetsi amapangidwa mu kristalo wa piezoelectric, kuchititsa kuti chiwerengero chake cha refractive chisinthe, motero kusintha gawo la kuwala. .Kusinthasintha kwamphamvu: Kuchuluka (kuchuluka kwa kuwala) kwa chonyamulira cha kuwala kumasintha pamene chizindikiro chosinthidwa chimasintha. Kusinthasintha kwamphamvu nthawi zambiri kumachitika pogwiritsa ntchito Mach-Zehnder intensity modulator, yomwe imakhala yofanana ndi Mach-Zehnder interferometer. Pambuyo matabwa awiri modulated ndi gawo kusuntha mkono ndi intensities osiyana, iwo potsiriza amasokonezedwa kuti mphamvu modulated kuwala chizindikiro.
4. Magawo ogwiritsira ntchito Electro-optical modulators ali ndi ntchito zosiyanasiyana m'magawo angapo, kuphatikiza koma osalekezera ku: kulumikizana ndi kuwala: M'makina olumikizirana othamanga kwambiri, ma electro-optical modulators amagwiritsidwa ntchito kutembenuza ma siginecha amagetsi kukhala ma siginecha owoneka bwino. kukwaniritsa ma encoding ndi kutumiza. Mwa kusintha mphamvu kapena gawo la chizindikiro cha kuwala, ntchito za kusintha kwa kuwala, kusinthasintha kwa kusintha kwa kusintha ndi kusinthasintha kwa siginecha kungatheke. Spectroscopy: Electro-optical modulators atha kugwiritsidwa ntchito ngati zigawo za optical spectrum analyzers pakuwunika ndi kuyeza. Muyeso waukadaulo: ma electro-optical modulators amakhalanso ndi gawo lofunikira pamakina a radar, zowunikira zamankhwala ndi magawo ena. Mwachitsanzo, m'makina a radar, amatha kugwiritsidwa ntchito posintha ma siginecha ndikuwonetsa; Pozindikira zachipatala, atha kugwiritsidwa ntchito ngati kujambula kwamaso ndi chithandizo. Zipangizo zatsopano zamagetsi: ma electro-optical modulators amathanso kugwiritsidwa ntchito kupanga zida zatsopano zamagetsi, monga ma switch ma electro-optical, optical isolator, ndi zina zambiri.
5. Ubwino ndi kuipa Electro-optic modulator ili ndi ubwino wambiri, monga kudalirika kwakukulu, kugwiritsa ntchito mphamvu zochepa, kuyika kosavuta, kukula kochepa ndi zina zotero. Panthawi imodzimodziyo, ilinso ndi makhalidwe abwino a magetsi ndi mphamvu zotsutsana ndi kusokoneza, zomwe zingagwiritsidwe ntchito pofalitsa ma burodibandi ndi zofunikira zosiyanasiyana zogwiritsira ntchito zizindikiro. Komabe, ma electro-optic modulator alinso ndi zofooka zina, monga kuchedwa kufalitsa ma siginecha, kosavuta kusokonezedwa ndi mafunde akunja amagetsi. Chifukwa chake, mukamagwiritsa ntchito ma electro-optic modulator, ndikofunikira kusankha chinthu choyenera malinga ndi zomwe mukufuna kugwiritsa ntchito kuti mukwaniritse bwino komanso magwiridwe antchito. Mwachidule, electro-optic modulator ndi chosinthira chofunikira cha electro-optic, chomwe chili ndi chiyembekezo chogwiritsa ntchito m'magawo ambiri monga kulumikizana kwa kuwala, mawonekedwe a spectroscopy ndi kuyeza kwaukadaulo.
Ndi kupita patsogolo kosalekeza kwa sayansi ndi ukadaulo komanso kuchuluka kwa kufunikira kwa zida zowoneka bwino kwambiri, ma electro-optical modulators adzapangidwa ndikugwiritsidwa ntchito kwambiri.