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.
Pakati pa kuyankhulana kwa fiber optical, kusinthasintha kwa chizindikiro kumakhala mofulumira komanso mofulumira kuti akwaniritse kuwonjezereka kwa mphamvu yolankhulirana, ndipo mawonekedwe owonetsera mawotchi amayamba kupatukana, ndipo njira zosiyanasiyana zosinthira zimagwiritsidwa ntchito pa intaneti mtunda waufupi komanso maukonde amtundu wautali. 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, ndiko kuti, angagwiritse ntchito mlingo voteji (chizindikiro magetsi) kulamulira gawo la kuwala, kukwaniritsa kusinthasintha kwa chizindikiro kuwala, umene uli 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 amodulatorndiutali wowirikiza kawiri kuposa indium phosphide, ndipo imatha kukhala modulita ndipo siyingaphatikize ntchito zina.
Pakali pano, ndi modulator elekitirolo kuwala walowa m'nthawi ya 100 biliyoni mlingo chizindikiro, (128G ndi 128 biliyoni), ndi lifiyamu niobate wakhala kamodzinso kuika pa nkhondo nawo mpikisano, ndipo akuyembekeza kutsogolera nyengo ino posachedwapa, 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. The njira awa atatu ngodya luso amafuna chinthu chimodzi chokha, ndiko kuti woonda filimu lifiyamu niobate zakuthupi, kutenga wosanjikiza woonda kwambiri wa lifiyamu niobate zakuthupi monga kuwala waveguide, mukhoza kukonzanso elekitirodi, kusintha mphamvu ya magetsi, kusintha bandiwifi ndi kusinthasintha mphamvu ya chizindikiro magetsi. Sinthani mphamvu zamagetsi. Firimuyi imathanso kumangirizidwa ku silicon wafer, kuti ikwaniritse kuphatikiza kosakanikirana, lithiamu niobate monga modulator, ena onse a silicon photon kusakanikirana, luso la silicon photon miniaturization likuwonekera kwa onse, filimu ya lifiyamu niobate ndi silicon kuwala kusakanikirana kosakanikirana, kusintha kusakanikirana, mwachibadwa kupindula miniaturization.
Posachedwapa, ndi elekitiro-kuwala modulator watsala pang'ono kulowa mu nthawi ya 200 biliyoni mlingo chizindikiro, kuipa kuwala kwa indium phosphide ndi pakachitsulo photons akukhala zoonekeratu, ndi ubwino kuwala kwa lifiyamu niobate akukhala otchuka kwambiri, ndi lifiyamu niobate woonda filimu bwino ndi kuipa kwa makampani lifiyamu ndi mothin filimuyi "lifiyamu" niobate”, ndiye filimu yowondayolithiamu niobate modulator. Uwu ndi udindo wa filimu woonda lithiamu niobate m'munda wa electro-optical modulators.