Ua ʻike ʻia hoʻi ka Lithium niobate ʻo ia ka silicon optical. Aia kekahi ʻōlelo e "ʻo ka lithium niobate i ke kamaʻilio optical e like me ka silicon i nā semiconductors." ʻO ke koʻikoʻi o ka silicon i ka hoʻokahuli ʻana o nā mea uila, no laila he aha ka mea e manaʻolana ai ka ʻoihana e pili ana i nā mea lithium niobate?
Ua kapa ʻia ʻo Lithium niobate (LiNbO3) ʻo "optical silicon" i ka ʻoihana. Ma waho aʻe o nā pono kūlohelohe e like me ke kūpaʻa kino a me ke kemika maikaʻi, ka puka makani ākea ākea (0.4m ~ 5m), a me ka coefficient electro-optical nui (33 = 27 pm/V), ʻo ka lithium niobate kekahi ʻano kristal me nā kumu waiwai maka he nui a me ke kumu kūʻai haʻahaʻa. Hoʻohana nui ʻia ia i nā kānana hana kiʻekiʻe, nā mea electro-optical, ka mālama holographic, ka hōʻike holographic 3D, nā mea optical nonlinear, ke kamaʻilio quantum optical a pēlā aku. Ma ke kahua o ke kamaʻilio optical, ʻo ka lithium niobate ke kuleana nui o ka modulation māmā, a ua lilo ia i huahana nui i ka modulator electro-optical wikiwiki o kēia manawa (Mea Hoʻololi Eo) mākeke.
I kēia manawa, aia ʻekolu mau ʻenehana nui no ka modulation māmā i ka ʻoihana: nā modulators electro-optical (Eo Modulator) e pili ana i ke kukui silicon, indium phosphide a melithium niobatenā kahua mea. Hoʻohana nui ʻia ka modulator optical Silicon i nā modula transceiver kamaʻilio ʻikepili pōkole, hoʻohana nui ʻia ka modulator indium phosphide i nā modula transceiver pūnaewele kamaʻilio optical waena a me ka lōʻihi, a hoʻohana nui ʻia ka lithium niobate electro-optical modulator (Eo Modulator) i ka kamaʻilio pūnaewele iwi kuamoʻo lōʻihi a me nā kikowaena ʻikepili wikiwiki wikiwiki 100/200Gbps hoʻokahi nalu. Ma waena o nā kahua mea modulator wikiwiki wikiwiki ʻekolu i luna, ʻo ka modulator lithium niobate kiʻi lahilahi i puka mai i nā makahiki i hala iho nei he pono bandwidth i hiki ʻole i nā mea ʻē aʻe ke hoʻohālikelike.
He ʻano mea inorganic ka Lithium niobate, ke ʻano kemikaLiNbO3, he kristal maikaʻi ʻole, kristal ferroelectric, kristal lithium niobate polarized me ka piezoelectric, ferroelectric, photoelectric, optics nonlinear, thermoelectric a me nā waiwai ʻē aʻe o ka mea, i ka manawa like me ka hopena photorefractive. ʻO ke kristal lithium niobate kekahi o nā mea inorganic hou i hoʻohana nui ʻia, he mea hoʻololi ikehu piezoelectric maikaʻi, mea ferroelectric, mea electro-optical, lithium niobate ma ke ʻano he mea electro-optical i ke kamaʻilio optical e pāʻani ana i kahi hana i ka modulation māmā.
ʻO ka mea lithium niobate, i ʻike ʻia ʻo "optical silicon", hoʻohana i ke kaʻina hana micro-nano hou loa e hoʻomohu i ka papa silicon dioxide (SiO2) ma luna o ka substrate silicon, hoʻopaʻa i ka substrate lithium niobate ma ke ana wela kiʻekiʻe e kūkulu i kahi ʻili cleavage, a laila e ʻili i ka ʻili lithium niobate. Loaʻa i ka modulator lithium niobate kiʻi lahilahi i hoʻomākaukau ʻia nā pono o ka hana kiʻekiʻe, ke kumukūʻai haʻahaʻa, ka liʻiliʻi, ka hana nui, a me ka hoʻohālikelike me ka ʻenehana CMOS, a he hopena hoʻokūkū no ka hoʻopili optical wikiwiki i ka wā e hiki mai ana.
Inā kapa ʻia ke kikowaena o ka hoʻokahuli uila ma hope o ka mea silicon i hiki ai, a laila hiki ke huli ʻia ka hoʻokahuli photonics i ka mea lithium niobate, i ʻike ʻia ʻo "optical silicon" lithium niobate kahi mea aniani ʻole e hoʻohui i nā hopena photorefractive, nā hopena nonlinear, nā hopena electro-optical, nā hopena acousto-optical, nā hopena piezoelectric a me nā hopena thermal. Hiki ke hoʻomalu ʻia ka nui o kona mau waiwai e ka haku mele kristal, ka doping element, ka mana o ka mokuʻāina valence a me nā mea ʻē aʻe. Hoʻohana nui ʻia ia e hoʻomākaukau i ka optical waveguide, optical switch, piezoelectric modulator,mea hoʻololi electro-optical, ka mea hana harmonic lua, ka mea hoʻonui alapine laser a me nā huahana ʻē aʻe. I ka ʻoihana kamaʻilio optical, he mākeke noi koʻikoʻi nā modulators no ka lithium niobate.
Ka manawa hoʻouna: ʻOkakopa-24-2023