A cikin 1962, Armstrong et al.da farko ya gabatar da manufar QPM (Quasi-phase-match), wanda ke amfani da jujjuyawar vector vector wanda superlatice ya bayar don ramawa.pamma rashin daidaituwa a cikin tsarin daidaitawa na gani.Hanyar polarization na ferroelectricstasiriƘimar polarization mara nauyi χ². Ana iya aiwatar da QPM ta hanyar shirya tsarin yanki na ferroelectric tare da sabanin kwatance polarization na lokaci-lokaci a cikin jikunan ferroelectric, ciki har da lithium niobate, lithium tantalate, daKTPlu'ulu'u.LN crystal shinemafi yaduamfaniabua wannan fagen.

A cikin 1969, Camlibel ya ba da shawarar cewa yankin ferroelectric naLNda sauran lu'ulu'u na ferroelectric ana iya juyawa ta amfani da filin lantarki mai tsayi sama da 30 kV/mm.Koyaya, irin wannan babban filin lantarki zai iya huda crystal cikin sauƙi.A wancan lokacin, yana da wahala a shirya kyawawan sifofin lantarki da daidaita tsarin jujjuyawar polarization daidai.Tun daga wannan lokacin, an yi ƙoƙari don gina tsarin yanki da yawa ta hanyar canza lamination naLNlu'ulu'u a wurare daban-daban na polarization, amma adadin kwakwalwan kwamfuta da za a iya gane yana da iyaka.A cikin 1980, Feng et al.An sami lu'ulu'u tare da tsarin yanki na polarization na lokaci-lokaci ta hanyar hanyar haɓaka haɓaka ta hanyar karkatar da cibiyar jujjuyawar kristal da cibiyar axis-symmetric filin thermal, kuma an gano mitar ninki biyu na fitarwa na 1.06 μm Laser, wanda ya tabbatar daQPMka'idar.Amma wannan hanyar tana da matukar wahala a cikin kula da tsarin lokaci-lokaci.A cikin 1993, Yamada et al.ya yi nasarar warware tsarin jujjuyawar polarization na lokaci-lokaci ta hanyar haɗa tsarin lithography na semiconductor tare da hanyar filin lantarki da ake amfani da shi.Hanyar da aka yi amfani da filin lantarki a hankali a hankali ta zama fasahar shirye-shirye na yau da kullun na lokaci-lokaciLNcrystal.A halin yanzu, lokaci-lokaci poedLNcrystal da aka kasuwanci da kuma kauri iyabefiye da 5 mm.

Aikace-aikacen farko na poled lokaci-lokaciLNcrystal ne yafi la'akari don Laser mitar hira.Tun farkon 1989, Ming et al.ya ba da shawarar manufar dielectric superlatices dangane da manyan abubuwan da aka gina daga yankunan ferroelectric naLNlu'ulu'u.Ƙaƙwalwar jujjuyawar na superlatice za ta shiga cikin tashin hankali da yaduwa na haske da raƙuman sauti.A cikin 1990, Feng da Zhu et al.ya gabatar da ka'idar matching da yawa.A cikin 1995, Zhu et al.shirye-shiryen mafi ƙarancin lokaci-lokaci dielectric superlatices ta hanyar fasahar polarization na ɗaki.A cikin 1997, an gudanar da tantancewar gwaji, da kuma ingantaccen haɗakar matakai guda biyu na gani-Mitar ninki biyu da jimlar mitar ta kasance a cikin mafi girman lokaci-lokaci, don haka samun ingantaccen mitar Laser sau uku ninki biyu a karon farko.A cikin 2001, Liu et al.tsara wani makirci don gane Laser launi uku dangane da quasi-lokaci matching.A cikin 2004, Zhu et al ya fahimci ƙirar mafi kyawun gani na fitarwar Laser mai tsayi da yawa da aikace-aikacen sa a cikin lasers masu ƙarfi.A cikin 2014, Jin et al.ƙera wani na gani superlatice hadedde photonic guntu dangane da reconfigurableLNwaveguide Tantancewar hanya (kamar yadda aka nuna a adadi), samun ingantaccen ƙarni na ƙulle-ƙulle photon da high-gudun electro-optic modulation akan guntu a karon farko.A cikin 2018, Wei et al da Xu et al sun shirya tsarin yanki na lokaci-lokaci na 3D dangane daLNlu'ulu'u, da kuma ingantaccen siffar katako mara kan layi ta amfani da tsarin yanki na lokaci-lokaci na 3D a cikin 2019.

Haɗaɗɗen guntu na photonic mai aiki akan LN (hagu) da zane-zanensa (dama)

Ci gaban ka'idar dielectric superlatice ya inganta aikace-aikacenLNcrystal da sauran ferroelectric lu'ulu'u zuwa wani sabon tsawo, kuma aka ba sumahimman abubuwan da ake buƙata na aikace-aikacen a cikin duk-m-ƙarfi-jihar Laser, Tantancewar mita tsefe, Laser bugun jini matsawa, katako siffata da enngled haske kafofin a jimla sadarwa.