Eo modulator Series: High liwiro, otsika voteji, yaing'ono kukula lifiyamu niobate woonda filimu polarization kulamulira chipangizo

Eo modulatorSeries: High liwiro, otsika voteji, yaing'ono kukula lifiyamu niobate woonda filimu polarization kulamulira chipangizo

Mafunde opepuka m'malo aulere (komanso mafunde amagetsi a ma frequency ena) ndi mafunde akumeta ubweya, ndipo mayendedwe a kugwedezeka kwa minda yake yamagetsi ndi maginito ali ndi magawo osiyanasiyana otheka mu gawo la mtanda perpendicular kumayendedwe akufalikira, komwe ndi polarization katundu. wa kuwala. Polarization ili ndi phindu lofunikira pakugwiritsa ntchito kulumikizana kogwirizana, kuyang'anira mafakitale, biomedicine, kuzindikira zakutali, asitikali amakono, ndege ndi nyanja.

M'chilengedwe, kuti azitha kuyenda bwino, zamoyo zambiri zasintha mawonekedwe omwe amatha kusiyanitsa polarization ya kuwala. Mwachitsanzo, njuchi zili ndi maso asanu (maso atatu amodzi, awiri ophatikizana), lililonse lili ndi maso aang'ono 6,300, omwe amathandiza njuchi kupeza mapu a polarization ya kuwala kumbali zonse zakumwamba. Njuchiyo imatha kugwiritsa ntchito mapu a polarization kuti ipeze komanso kutsogoza mitundu yakeyo ku maluwa omwe imapeza. Anthu alibe ziwalo zakuthupi zofanana ndi njuchi kuti azindikire kufalikira kwa kuwala, ndipo amafunika kugwiritsa ntchito zida zopangira kuti azindikire ndikuwongolera kufalikira kwa kuwala. Chitsanzo chodziwika bwino ndi kugwiritsa ntchito magalasi opangira ma polarizing kuti awongolere kuwala kuchokera kuzithunzi zosiyanasiyana kupita kumanzere ndi kumanja kumaso pozungulira polarizations, yomwe ndi mfundo yamakanema a 3D mu kanema.

Kupanga zida zapamwamba zowongolera polarization ndiye chinsinsi chopangira ukadaulo wa polarized light application. Zipangizo zowongolera polarization zimaphatikizapo polarization state generator, scrambler, polarization analyzer, polarization controller, ndi zina. M'zaka zaposachedwa, ukadaulo wowongolera polarization ukupititsa patsogolo kupita patsogolo ndikuphatikizana mozama kumadera angapo omwe akutulukapo ofunika kwambiri.

Kutengakulumikizana kwamasomwachitsanzo, motsogozedwa ndi kufunikira kwa kutumiza kwa data kwakukulu m'malo opangira data, kulumikizana kwakutali.kuwalaukadaulo wolumikizirana umafalikira pang'onopang'ono kuzinthu zazifupi zolumikizirana zomwe zimakhudzidwa kwambiri ndi mtengo ndi kugwiritsa ntchito mphamvu, ndipo kugwiritsa ntchito ukadaulo wogwiritsa ntchito polarization kungachepetse bwino mtengo ndi kugwiritsa ntchito mphamvu kwa njira zazifupi zolumikizirana zolumikizirana. Komabe, pakali pano, polarization control imazindikirika makamaka ndi zigawo za discrete Optical, zomwe zimalepheretsa kwambiri kusintha kwa magwiridwe antchito komanso kuchepetsa mtengo. Ndi chitukuko chofulumira cha teknoloji yophatikizira optoelectronic, kuphatikiza ndi chip ndizofunika kwambiri pakukula kwamtsogolo kwa zida zowongolera polarization.
Komabe, ma waveguides opangira ma kristalo amtundu wa lithiamu niobate ali ndi zoyipa za kusiyanitsa kwakung'ono kwa refractive index ndi luso lofooka lomangira kumunda. Kumbali imodzi, kukula kwa chipangizocho ndi chachikulu, ndipo n'zovuta kukwaniritsa zofunikira zachitukuko. Kumbali inayi, kuyanjana kwa electrooptical ndikofooka, ndipo mphamvu yoyendetsa galimoto ya chipangizocho ndi yaikulu.

Mzaka zaposachedwa,zipangizo zamakonozochokera lithiamu niobate woonda filimu zipangizo zapita patsogolo mbiri, kukwaniritsa liwilo apamwamba ndi otsika ma voltages oyendetsa kuposa miyambolithium niobate photonic zipangizo, kotero amakondedwa ndi makampani. Mu kafukufuku waposachedwapa, Integrated kuwala polarization control Chip anazindikira pa lifiyamu niobate woonda film photonic integration nsanja, kuphatikizapo polarization jenereta, scrambler, polarization analyzer, polarization controller ndi ntchito zina zazikulu. Zigawo zazikulu za tchipisi izi, monga liwiro la polarization generation, polarization extinction ratio, polarization perturbation speed, ndi liwiro la kuyeza, zakhazikitsa mbiri yatsopano yapadziko lonse lapansi, ndipo zawonetsa kuchita bwino kwambiri pa liwiro lalikulu, mtengo wotsika, palibe kutayika kwa parasitic modulation, komanso kutsika. gwero lamagetsi. Zotsatira za kafukufuku kwa nthawi yoyamba zimazindikira mndandanda wa ntchito zapamwambalithiamu niobatefilimu yopyapyala ya optical polarization control zipangizo, zomwe zimapangidwa ndi zigawo ziwiri zofunika: 1. Polarization rotation / Splitter, 2. Mach-zindel interferometer (kufotokoza>), monga momwe tawonetsera pa Chithunzi 1.