Nlebanya dị nkenke nke Lithium Niobate Crystal na Ngwa Ya - Nkebi 7: Dielectric Superlatice nke LN Crystal

Nlebanya dị nkenke nke Lithium Niobate Crystal na Ngwa Ya - Nkebi 7: Dielectric Superlatice nke LN Crystal

Na 1962, Armstrong et al.buru ụzọ chepụta echiche nke QPM (Quasi-phase-match), nke na-eji vector lattice tụgharịrị nke superlatice nyere iji kwụọ ụgwọ.pOtú ọ dị n'ime usoro parametric optical.Ntuziaka polarization nke ferroelectricsmmetụtas ọnụ ọgụgụ polarization na-abụghị nke ntanetị χ2. Enwere ike nweta QPM site n'ịkwado ihe owuwu ngalaba ferroelectric nwere ntụzịaka polarization na-emegide oge n'ime ahụ ferroelectric., gụnyere lithium niobate, lithium tantalate, naKTPkristal.LN crystal bụkacha ebe niileejiihen'ubi a.

Na 1969, Camlibel tụrụ aro ka ngalaba ferroelectric nkeLNna kristal ferroelectric ndị ọzọ nwere ike tụgharịa site na iji igwe eletrik dị elu karịa 30 kV/mm.Otú ọ dị, ọkụ eletrik dị otú ahụ nwere ike ịkụnye kristal n'ụzọ dị mfe.N'oge ahụ, ọ na-esiri ike ịkwado ezigbo ụlọ electrode ma jikwaa n'ụzọ ziri ezi usoro mgbanwe polarization ngalaba.Ebe ọ bụ na mgbe ahụ, a na-eme mgbalị iji wuo multi-ngalaba Ọdịdị site alternating lamination nkeLNkristal n'ụzọ dị iche iche polarization, ma ọnụ ọgụgụ nke ibe nwere ike ghọtara bụ oke.Na 1980, Feng et al.enwetara kristal nwere nhazi ngalaba polarization oge site na usoro nke uto eccentric site n'ịhụ na etiti ntụgharị kristal na etiti axis-symmetric nke thermal, wee chọpụta nsonaazụ ugboro abụọ nke laser 1.06 μm, nke gosipụtara naQPMtiori.Mana usoro a nwere nnukwu ihe isi ike na njikwa mma nke nhazi oge.Na 1993, Yamada et al.rụziri nke ọma usoro ngbanwe ngalaba polarization nke oge site na ijikọ usoro lithography semiconductor na usoro mpaghara ọkụ eletrik etinyere n'ọrụ.Usoro polarization nke ebe eletrịkị etinyere ejirila nwayọọ nwayọọ bụrụ teknụzụ nkwadebe nke oge ọ bụlaLNkristal.Ka ọ dị ugbu a, a na-atụgharị ogeLNkristal abụrụla azụmaahịa yana ọkpụrụkpụ ya nwere ikebeihe karịrị 5 mm.

Ngwa izizi nke polled periodicLNA na-atụle kristal maka ntụgharị ugboro ugboro laser.N'ihe dị ka 1989, Ming et al.tụpụtara echiche nke dielectric superlatices dabere na nnukwu ụlọ arụrụ na mpaghara ferroelectric nkeLNkristal.Ihe ntụgharị ntụgharị nke superlatice ga-esonye na mkpali na mgbasa nke ìhè na ebili mmiri ụda.Na 1990, Feng na Zhu et al.tụpụtara echiche nke otutu quasi matching.Na 1995, Zhu et al.akwadoro obere dielectric superlatices site na teknụzụ polarization nke ime ụlọ.N'afọ 1997, e mere nkwenye nnwale, yana njikọ dị irè nke usoro parametric abụọ anya-Achọpụtara ugboro abụọ na nchikota ugboro n'obere oge, si otú a na-enweta ugboro ugboro ugboro atọ nke ọma laser ugboro abụọ na nke mbụ.Na 2001, Liu et al.haziri atụmatụ iji nweta laser agba atọ dabere na nha nha-phase.N'afọ 2004, Zhu et al ghọtara n'ichepụta ngwa anya superlattice nke mmepụta laser multi-wavelength yana ngwa ya na lasers steeti niile.Na 2014, Jin et al.haziri ngwa anya superlattice agbakwunyere mgbawa fotonic dabere na reconfigurableLNụzọ ngwa anya waveguide (dị ka egosiri na ọnụ ọgụgụ), na-enweta ọgbọ nke ọma nke foto ndị agbakwunyere na mgbawa ọkụ eletrik dị elu na mgbawa maka oge mbụ.Na 2018, Wei et al na Xu et al kwadoro nhazi ngalaba oge 3D dabere naLNkristal, wee rụpụta ezigbo ihe n'ịkpụzi ọkụ na-adịghị n'ịntanetị site na iji nhazi ngalaba oge 3D na 2019.

Integrated active photonic chip on LN and its schematic diagram-WISOPTIC

Ngwakọta fotonic na-arụ ọrụ agbakwunyere na LN (aka ekpe) na eserese ya (n'aka nri)

Mmepe nke dielectric superlatice theory akwalitela ngwa nkeLNkristal na kristal ferroelectric ndị ọzọ ka ọ dị elu ọhụrụ, ma nye haAtụmanya ngwa dị mkpa na lasers steeti siri ike, mbo ngwa anya ugboro ugboro, mkpakọ pulse laser, nhazi beam na isi mmalite ọkụ jikọtara ọnụ na nzikọrịta ozi nke quantum.


Oge nzipu: Feb-03-2022