Eo modulator Series: Liwiro lalikulu, mphamvu yochepa, chipangizo chowongolera cha lithiamu niobate chochepa kwambiri

Eo modulatorMndandanda: Liwiro lalikulu, mphamvu yotsika, chipangizo chowongolera cha lithiamu niobate chochepa kwambiri

Mafunde owala omwe ali m'malo omasuka (komanso mafunde amagetsi a ma frequency ena) ndi mafunde otuwa, ndipo njira yogwedera ya mphamvu zake zamagetsi ndi maginito imakhala ndi njira zosiyanasiyana zomwe zingatheke m'mbali yopingasa ku njira yofalikira, yomwe ndi mphamvu ya kuwala. Kugawanika kwa mphamvu kumakhala ndi phindu lofunika kwambiri m'magawo a kulumikizana kwa kuwala kogwirizana, kuzindikira mafakitale, biomedicine, kuzindikira kutali kwa dziko lapansi, asilikali amakono, ndege ndi nyanja.

Mu chilengedwe, kuti ziyende bwino, zamoyo zambiri zapanga njira zowonera zomwe zimatha kusiyanitsa kugawanika kwa kuwala. Mwachitsanzo, njuchi zili ndi maso asanu (maso atatu amodzi, maso awiri ophatikizika), lililonse lili ndi maso ang'onoang'ono 6,300, omwe amathandiza njuchi kupeza mapu a kugawanika kwa kuwala mbali zonse zakumwamba. Njuchi ingagwiritse ntchito mapu a kugawanika kuti ipeze ndikutsogolera mtundu wake molondola ku maluwa omwe imapeza. Anthu alibe ziwalo za thupi zofanana ndi njuchi kuti azindikire kugawanika kwa kuwala, ndipo amafunika kugwiritsa ntchito zida zopangira kuti azindikire ndikuwongolera kugawanika kwa kuwala. Chitsanzo chodziwika bwino ndi kugwiritsa ntchito magalasi ogawa kuti atsogolere kuwala kuchokera pazithunzi zosiyanasiyana kupita kumaso akumanzere ndi akumanja mu kugawanika kwa perpendicular, komwe ndi mfundo ya makanema a 3D mu cinema.

Kupanga zipangizo zowongolera kuwala kwa polarization zomwe zimagwira ntchito bwino kwambiri ndiye chinsinsi chopangira ukadaulo wogwiritsa ntchito kuwala kwa polarized. Zipangizo zodziwika bwino zowongolera kuwala kwa polarization zimaphatikizapo polarization state generator, scrambler, polarization analyzer, polarization controller, ndi zina zotero. M'zaka zaposachedwapa, ukadaulo wosintha kuwala kwa polarization ukufulumizitsa kupita patsogolo ndikugwirizanitsa kwambiri m'magawo angapo omwe akutukuka omwe ndi ofunikira kwambiri.

Kutengakulankhulana kwa kuwalamwachitsanzo, chifukwa cha kufunika kwa kutumiza deta yambiri m'malo osungira deta, komanso kugwirizana kwa mtunda wautalikuwalaUkadaulo wolumikizirana ukufalikira pang'onopang'ono ku mapulogalamu olumikizirana afupiafupi omwe amakhudzidwa kwambiri ndi mtengo ndi mphamvu, ndipo kugwiritsa ntchito ukadaulo wosintha polarization kungachepetse bwino mtengo ndi mphamvu zomwe zimagwiritsidwa ntchito pamakina olumikizirana afupiafupi. Komabe, pakadali pano, kuwongolera polarization kumachitika makamaka ndi zigawo za optical discrete, zomwe zimalepheretsa kwambiri kusintha kwa magwiridwe antchito komanso kuchepetsa mtengo. Ndi chitukuko chofulumira cha ukadaulo wophatikizana ndi optoelectronic, kuphatikiza ndi chip ndizofunikira kwambiri pakukula kwamtsogolo kwa zida zowongolera polarization ya optical.
Komabe, ma waveguides a kuwala omwe amakonzedwa mu ma crystals achikhalidwe a lithiamu niobate ali ndi zovuta za kusiyana kwa refractive index ndi mphamvu yofooka ya optical field binding. Kumbali imodzi, kukula kwa chipangizocho ndi kwakukulu, ndipo n'kovuta kukwaniritsa zosowa za chitukuko cha kuphatikiza. Kumbali ina, kuyanjana kwa electrooptical ndi kofooka, ndipo mphamvu yoyendetsera chipangizocho ndi yayikulu.

Mzaka zaposachedwa,zipangizo zojambulira zithunziKutengera zinthu zopangidwa ndi filimu yopyapyala ya lithiamu niobate, zapita patsogolo kwambiri, zikukwaniritsa liwiro lalikulu komanso ma voltage otsika kuposa zachikhalidwe.zipangizo za lithiamu niobate photonic, kotero amakondedwa ndi makampani. Mu kafukufuku waposachedwapa, chip yolumikizirana ya optical polarization control chip imapezeka pa nsanja yolumikizira ya lithiamu niobate thin film photonic, kuphatikiza polarization generator, scrambler, polarization analyzer, polarization controller ndi ntchito zina zazikulu. Magawo akuluakulu a ma chips awa, monga polarization generation speed, polarization extinction ratio, polarization perturbation speed, ndi muyeso speed, akhazikitsa mbiri zatsopano padziko lonse lapansi, ndipo awonetsa magwiridwe antchito abwino kwambiri pa liwiro lalikulu, mtengo wotsika, palibe parasite modulation loss, komanso low drive voltage. Zotsatira za kafukufukuyu kwa nthawi yoyamba zikuwonetsa magwiridwe antchito ambiri.lithiamu niobateZipangizo zowongolera polarization ya kuwala kwa filimu yopyapyala, zomwe zimapangidwa ndi mayunitsi awiri oyambira: 1. Polarization rotation/splitter, 2. Mach-zindel interferometer (kufotokozera >), monga momwe zasonyezedwera pa Chithunzi 1.