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

Udindo wa filimu woonda wa lithiamu niobate muelectro-optic modulator
Kuyambira pachiyambi cha mafakitale mpaka pano, mphamvu ya kulankhulana kwa fiber imodzi yawonjezeka ndi mamiliyoni a nthawi, ndipo kafukufuku wochepa wapakatikati wadutsa maulendo mamiliyoni ambiri. Lithium niobate idagwira ntchito yayikulu pakati pamakampani athu. M'masiku oyambilira a kulumikizana kwa fiber optical, kusinthika kwa siginecha ya optical kunayang'aniridwa mwachindunjilaser. Njira yosinthirayi ndiyovomerezeka pama bandwidth otsika kapena kugwiritsa ntchito mtunda waufupi. Pakusintha kothamanga kwambiri komanso kugwiritsa ntchito mtunda wautali, padzakhala bandwidth yosakwanira ndipo njira yotumizira ndi yokwera mtengo kwambiri kuti ikwaniritse ntchito zamtunda wautali.
Pakatikati pa kulumikizana kwa kuwala kwa fiber, kusinthasintha kwa ma siginecha kumakhala kofulumira komanso kofulumira kuti akwaniritse kuchuluka kwa kulumikizana, ndipo mawonekedwe osinthira ma siginecha amayamba kupatukana, ndipo mitundu yosiyanasiyana yosinthira imagwiritsidwa ntchito pa intaneti mtunda waufupi komanso maukonde akutali. . Kusinthasintha kwachindunji kotsika mtengo kumagwiritsidwa ntchito pa intaneti mtunda waufupi, ndipo "electro-optic modulator" yosiyana imagwiritsidwa ntchito pamaukonde atali atali, omwe amasiyanitsidwa ndi laser.
Electro-optic modulator imagwiritsa ntchito mawonekedwe osokoneza a Machzender kuti asinthe ma siginecha, kuwala ndi mafunde amagetsi, kusokoneza kwamagetsi kwamagetsi kumafunikira kuwongolera pafupipafupi, gawo ndi polarization. Nthawi zambiri timatchula mawu, otchedwa interference fringes, kuwala ndi mdima wakuda, kuwala ndi malo omwe kusokoneza kwa electromagnetic kumalimbikitsidwa, mdima ndi malo omwe kusokoneza kwa electromagnetic kumapangitsa mphamvu kufooka. Kusokoneza kwa Mahzender ndi mtundu wa interferometer ndi dongosolo lapadera, lomwe ndilo kusokoneza komwe kumayendetsedwa ndi kulamulira gawo la mtengo womwewo pambuyo pogawaniza mtengo. Mwa kuyankhula kwina, zotsatira zosokoneza zimatha kuwongoleredwa ndikuwongolera gawo losokoneza.
Lithium niobate mfundo imeneyi ntchito kuwala CHIKWANGWANI kulankhulana, ndiye kuti, akhoza kugwiritsa ntchito voteji mlingo (magetsi chizindikiro) kulamulira gawo la kuwala, kukwaniritsa kusinthasintha kwa chizindikiro kuwala, umene ndi ubale pakati pa electro-optical. modulator ndi lithiamu niobate. Modulator yathu imatchedwa electro-optic modulator, yomwe imayenera kuganizira za kukhulupirika kwa siginecha yamagetsi komanso kusinthasintha kwa chizindikiro cha kuwala. Mphamvu yamagetsi ya indium phosphide ndi silicon photonics ndiyabwino kuposa ya lithiamu niobate, ndipo mphamvu yamagetsi yamagetsi ndi yofooka pang'ono koma ingagwiritsidwenso ntchito, zomwe zimapanga njira yatsopano yopezera mwayi wamsika.
Kuphatikiza pa zinthu zabwino kwambiri zamagetsi, indium phosphide ndi silicon photonics ali ndi ubwino wa miniaturization ndi kuphatikiza kuti lithiamu niobate alibe. Indium phosphide ndi yaying'ono kuposa lithiamu niobate ndipo ili ndi digiri yapamwamba yophatikizira, ndipo ma silicon photon ndi ang'onoang'ono kuposa indium phosphide ndipo ali ndi digiri yapamwamba yophatikiza. Mutu wa lithiamu niobate ngati amodulitandiutali wowirikiza kawiri kuposa indium phosphide, ndipo imatha kukhala modulita ndipo siyingaphatikize ntchito zina.
Pakali pano, electro-optical modulator walowa m'nthawi ya 100 biliyoni chizindikiro mlingo, (128G ndi 128 biliyoni), ndi lithiamu niobate kamodzinso kuika pa nkhondo kutenga nawo mbali mpikisano, ndipo akuyembekeza kutsogolera nthawi imeneyi pafupi. tsogolo, kutsogolera kulowa 250 biliyoni chizindikiro mlingo msika. Kuti lithiamu niobate itengenso msika uwu, m'pofunika kufufuza zomwe indium phosphide ndi silicon photons zili nazo, koma lithiamu niobate alibe. Ndiwo mphamvu zamagetsi, kuphatikiza kwakukulu, miniaturization.
Kusintha kwa lifiyamu niobate kuli m'makona atatu, Angle yoyamba ndi momwe mungasinthire mphamvu zamagetsi, mbali yachiwiri ndi momwe mungasinthire kusakanikirana, ndipo mbali yachitatu ndi momwe mungachepetsere. Njira yothetsera ngodya zitatu izi luso zimafuna chinthu chimodzi chokha, ndiko kuti, kuwonda filimu ya lifiyamu niobate zakuthupi, kutenga wosanjikiza woonda kwambiri wa lifiyamu niobate zakuthupi monga kuwala waveguide, mukhoza kukonzanso elekitirodi, kusintha mphamvu ya magetsi, kusintha. bandwidth ndi kusinthasintha kwamphamvu kwa siginecha yamagetsi. Sinthani mphamvu zamagetsi. Firimuyi imathanso kumangirizidwa ku chowotcha cha silicon, kuti tikwaniritse kuphatikiza kosakanikirana, lithiamu niobate monga chosinthira, ena onse a silicon photon kusakanikirana, luso la silicon photon miniaturization likuwonekera kwa onse, filimu ya lithiamu niobate ndi silicon kuwala kusakanikirana kosakanikirana, kusintha kusakanikirana. , mwachibadwa anapindula miniaturization.
Posachedwapa, electro-optical modulator yatsala pang'ono kulowa mu nthawi ya 200 biliyoni chizindikiro mlingo, kuipa kwa kuwala kwa indium phosphide ndi silicon photons akukhala zoonekeratu, ndi mwayi kuwala kwa lithiamu niobate akukhala mochulukira. wotchuka, ndi lifiyamu niobate woonda filimu bwino kuipa kwa nkhaniyi monga modulator, ndipo makampani amaganizira kwambiri "woonda filimu lifiyamu niobate", ndiko kuti, filimu woonda.lithiamu niobate modulator. Uwu ndi udindo wa filimu woonda lithiamu niobate m'munda wa electro-optical modulators.