Modulator electro optic dị elu: ihe nkiri lithium niobate modulator dị mkpa

Eletrọ-optic modulator arụmọrụ dị elu:obere ihe nkiri lithium niobate modulator

Igwe ihe igwe eletrọ-optical modulator (EOM modulator) bụ modulator mere site na iji electro-optical mmetụta nke ụfọdụ electro-optical kristal, nke nwere ike ịgbanwe elu-ọsọ eletrọnịkị n'ikuku ngwaọrụ n'ime ngwa anya mgbaàmà. Mgbe kristal electro-optic na-edobere n'okirikiri ọkụ eletrik etinyere, ihe nrịbama refractive nke kristal electro-optic ga-agbanwe, na njirimara ebili mmiri anya nke kristal ga-agbanwekwa ya, iji ghọta mgbanwe nke njupụta, oge na ọnọdụ polarization nke mgbaàmà anya, ma gbanwee akara ọkụ eletrik dị elu na ngwaọrụ nkwurịta okwu n'ime mgbaàmà anya site na mgbanwe mgbanwe.

Ugbu a, e nwere atọ isi ụdịelectrooptic modulatorsn'ahịa: modulators dabeere na silicon, indium phosphide modulators na ihe nkiri dị mkpalithium niobate modulator. N'ime ha, sịlịkọn enweghị ọnụọgụ ọnụọgụ electro-optical ozugbo, arụmọrụ bụ n'ozuzu ya, naanị dabara maka imepụta modulator transceiver transceiver modul dị mkpụmkpụ, indium phosphide ọ bụ ezie na ọ dabara adaba maka modul transceiver optical transceiver netwọk ogologo, mana usoro ntinye chọrọ dị oke elu, ọnụahịa ahụ dị oke elu, ngwa ahụ dabere na oke ụfọdụ. N'ụzọ dị iche, lithium niobate kristal bụghị nanị ọgaranya photoelectric mmetụta, set photorefractive mmetụta, nononlinear mmetụta, electro-optical mmetụta, acoustic ngwa anya mmetụta, piezoelectric mmetụta na thermoelectric mmetụta bụ hà otu, na ekele ya lattice Ọdịdị na ọgaranya ntụpọ Ọdịdị, ọtụtụ Njirimara nke lithium niobate nwere ike ukwuu na-achịkwa kristal mejupụtara, ịrụ ọrụ nke ọma na-achịkwa, ihe ndị dị otú ahụ foto doping. ọnụọgụ electro-optical ọnụọgụ ruru ruo 30.9pm / V, nke dị elu karịa indium phosphide, ma nwee obere mmetụta chirp (mmetụta chirp: na-ezo aka n'ihe na-emekarị na ugboro ole n'ime ụbụrụ na-agbanwe na oge n'oge usoro nnyefe laser pulse. Mmetụta chirp buru ibu na-ebute nrịbama-na-mkpọtụ ọnụ na njedebe na-adịghị mma na nkezi "n'usoro nke ala"). ọnọdụ “gbanyụọ” ya), yana nkwụsi ike ngwaọrụ dị elu. Na mgbakwunye, usoro ọrụ nke lithium niobate modulator dị gịrịgịrị dị iche na nke modulator dabere na silicon na indium phosphide modulator site na iji usoro modulation na-abụghị nke na-eji linear electro-optical effect load the electric modulated signals on the optical ebu, na modulation ọnụego bụ tumadi kpebisiri ike site na arụmọrụ nke ngwa ndakwa nri ngwa ngwa na ike na-eri nri dị elu nke ọma ka ike nke ngwa ndakwa nri na-enweta ike dị elu. Dabere na nke a dị n'elu, lithium niobate aghọwo nhọrọ dị mma maka nkwadebe nke ndị na-arụ ọrụ electro-optic modulators dị elu, nke nwere ọtụtụ ngwa na 100G/400G netwọk nkwurịta okwu ngwa anya na ultra-high-speed data centers, ma nwee ike nweta ogologo nnyefe nke ihe karịrị 100 kilomita.

Lithium niobate dị ka ihe mgbagha nke "photon revolution", ọ bụ ezie na e jiri ya tụnyere silicon na indium phosphide nwere ọtụtụ uru, ma ọ na-apụtakarị n'ụdị nnukwu ihe dị na ngwaọrụ ahụ, ìhè ahụ na-ejedebe na ụgbọ elu ụgbọ elu nke ion diffusion ma ọ bụ mgbanwe proton na-emepụta, ihe dị iche iche refractive index na-adịkarị obere (ihe dị ka 0.02). O siri ike izute mkpa nke miniaturization na mwekota nkengwa anya ngwaọrụ, na ahịrị mmepụta ya ka dị iche na usoro usoro microelectronics n'ezie, na enwere nsogbu nke ọnụ ahịa dị elu, ya mere nhazi ihe nkiri dị mkpa bụ ntụziaka mmepe dị mkpa maka lithium niobate eji na electro-optical modulators.