Udindo wa filimu yopyapyala ya lithiamu niobate mu modulator ya electro-optic

Udindo wa filimu yopyapyala ya lithiamu niobate mumodulator yamagetsi
Kuyambira pachiyambi cha makampani mpaka pano, mphamvu yolumikizirana ndi ulusi umodzi yawonjezeka ndi mamiliyoni ambiri, ndipo kafukufuku wochepa wamakono wapitirira makumi mamiliyoni ambiri. Lithium niobate idagwira ntchito yayikulu pakati pa makampani athu. M'masiku oyamba a kulumikizana ndi ulusi wa kuwala, kusintha kwa chizindikiro cha kuwala kunkasinthidwa mwachindunji palaserNjira yosinthira iyi ndi yovomerezeka pakugwiritsa ntchito bandwidth yochepa kapena mtunda waufupi. Pakugwiritsa ntchito modulation yothamanga kwambiri komanso mtunda wautali, sipadzakhala bandwidth yokwanira ndipo njira yotumizira mauthenga ndi yokwera mtengo kwambiri kuti ikwaniritse ntchito zakutali.
Pakati pa kulumikizana kwa ulusi wa kuwala, kusintha kwa chizindikiro kumakhala kofulumira komanso kofulumira kuti kukwaniritse kuwonjezeka kwa mphamvu yolumikizirana, ndipo mawonekedwe osinthira chizindikiro cha kuwala amayamba kupatukana, ndipo njira zosiyanasiyana zosinthira zimagwiritsidwa ntchito mu maukonde akutali komanso maukonde akutali. Kusintha kwachindunji kotsika mtengo kumagwiritsidwa ntchito mu maukonde akutali, ndipo "electro-optic modulator" yapadera imagwiritsidwa ntchito mu maukonde akutali, omwe amalekanitsidwa ndi laser.
Electro-optic modulator imagwiritsa ntchito kapangidwe ka kusokoneza kwa Machzender kuti isinthe chizindikiro, kuwala ndi mafunde amagetsi, kusokoneza kwa mafunde amagetsi kumafuna kusinthasintha kokhazikika, gawo ndi polarization. Nthawi zambiri timatchula mawu otchedwa kusokoneza ma fringe, kuwala ndi ma fringe amdima, kuwala ndi dera lomwe kusokoneza kwa ma electromagnetic kumakulitsidwa, mdima ndi dera lomwe kusokoneza kwa ma electromagnetic kumapangitsa mphamvu kufooka. Kusokoneza kwa Mahzender ndi mtundu wa interferometer yokhala ndi kapangidwe kapadera, komwe ndi kusokoneza komwe kumayendetsedwa ndi kuwongolera gawo la kuwala komweko mutagawanitsa kuwala. Mwanjira ina, zotsatira za kusokoneza zimatha kulamulidwa powongolera gawo la kusokoneza.
Lithium niobate. Chida ichi chimagwiritsidwa ntchito polumikizana ndi ulusi wa kuwala, kutanthauza kuti, chingagwiritse ntchito mulingo wamagetsi (chizindikiro chamagetsi) kuti chiwongolere gawo la kuwala, kuti chikwaniritse kusintha kwa chizindikiro cha kuwala, komwe ndi ubale pakati pa modulator ya electro-optical ndi lithium niobate. Modulator yathu imatchedwa electro-optic modulator, yomwe imafunika kuganizira zonse ziwiri kukhulupirika kwa chizindikiro chamagetsi komanso mtundu wa kusintha kwa chizindikiro cha kuwala. Mphamvu yamagetsi ya indium phosphide ndi silicon photonics ndi yabwino kuposa ya lithium niobate, ndipo mphamvu ya chizindikiro cha kuwala ndi yofooka pang'ono koma ingagwiritsidwenso ntchito, zomwe zimapangitsa njira yatsopano yogwiritsira ntchito mwayi wamsika.
Kuwonjezera pa mphamvu zawo zabwino zamagetsi, indium phosphide ndi silicon photonics zili ndi ubwino wa miniaturization ndi integration zomwe lithium niobate ilibe. Indium phosphide ndi yaying'ono kuposa lithium niobate ndipo ili ndi digiri yapamwamba yolumikizira, ndipo silicon photons ndi yaying'ono kuposa indium phosphide ndipo ili ndi digiri yapamwamba yolumikizira. Mutu wa lithium niobate ngatimodulatorNdi yayitali kawiri kuposa indium phosphide, ndipo ingakhale modulator yokha ndipo singaphatikizepo ntchito zina.
Pakadali pano, electro-optical modulator yalowa mu nthawi ya 100 biliyoni symbol rate, (128G ndi 128 biliyoni), ndipo lithiamu niobate yayambanso kumenyana kuti itenge nawo mbali mu mpikisano, ndipo ikuyembekeza kutsogolera nthawi ino posachedwa, kutsogolera kulowa mu msika wa 250 biliyoni symbol rate. Kuti lithiamu niobate ibwezeretse msikawu, ndikofunikira kuwunika zomwe indium phosphide ndi silicon photons zili nazo, koma lithiamu niobate ilibe. Ndi mphamvu zamagetsi, kuphatikiza kwakukulu, miniaturization.
Kusintha kwa lithiamu niobate kuli m'ma ngodya atatu, ngodya yoyamba ndi momwe mungakonzere mphamvu zamagetsi, ngodya yachiwiri ndi momwe mungakonzere kuphatikizana, ndipo ngodya yachitatu ndi momwe mungachepetsere. Yankho la ma ngodya atatu awa aukadaulo limafuna chinthu chimodzi chokha, ndiko kuti, kupukuta zinthu za lithiamu niobate, kuchotsa wosanjikiza woonda kwambiri wa zinthu za lithiamu niobate ngati chitsogozo cha mafunde, mutha kupanganso ma electrode, kukonza mphamvu zamagetsi, kukonza bandwidth ndi modulation efficiency ya chizindikiro chamagetsi. Sinthani luso lamagetsi. Filimuyi ikhozanso kulumikizidwa ku silicon wafer, kuti mukwaniritse kuphatikizana kosakanikirana, lithiamu niobate ngati modulator, kuphatikizana kwa silicon photon, luso la silicon photon miniaturization ndi lodziwikiratu kwa onse, filimu ya lithiamu niobate ndi kuphatikizana kosakanikirana kwa silicon, kukonza kuphatikizana, ndi miniaturization yopangidwa mwachilengedwe.
Posachedwapa, modulator ya electro-optical yatsala pang'ono kulowa mu nthawi ya chizindikiro cha 200 biliyoni, kufooka kwa kuwala kwa indium phosphide ndi silicon photons kukuonekera kwambiri, ndipo ubwino wa kuwala kwa lithiamu niobate ukuonekera kwambiri, ndipo filimu yopyapyala ya lithiamu niobate ikuwonjezera kufooka kwa chipangizochi ngati modulator, ndipo makampani akuyang'ana kwambiri pa "filimu yopyapyala ya lithiamu niobate", kutanthauza filimu yopyapyala.modulator ya lithiamu niobateUwu ndi udindo wa lithiamu niobate wopyapyala m'munda wa ma modulators a electro-optical.