ILanthanum gallium silicate (La₃Ga₅SiO₁₄, LGS) ikristale yeyenkqubo yekristale yesithathu, iqela lamanqaku angama-32, iqela lendawo P₃₂₁ (No.150). I-LGS ineempembelelo ezininzi ezifana ne-piezoelectric, i-electro-optical, i-optical rotation, kwaye ingasetyenziselwa njengezinto ze-laser ngokusebenzisa i-doping. Ngowe-1982, uKaminskyokqhubekayo. ingxelo yokukhula kweekristale ze-LGS ezine-doped. Kwi-2000, iikristali ze-LGS ezinobubanzi be-intshi ye-3 kunye nobude be-90 mm zaphuhliswa ngu-Uda noBuzanov.

Ikristale ye-LGS yinto egqwesileyo ye-piezoelectric kunye nohlobo lokusika lwe-coefficient ye-zero yobushushu. Kodwa ngokwahlukileyo kwizicelo ze-piezoelectric, izicelo ze-electro-optic Q-switching zifuna umgangatho ophezulu wekristale. Ngo-2003, uKongokqhubekayo. ikhule ngempumelelo iikristale ze-LGS ngaphandle kweziphene ezicacileyo ze-macroscopic ngokusebenzisa indlela yeCzochralski, kwaye yafumanisa ukuba umoya wokukhula uchaphazela umbala weekristale. Baye bafumana iikristale ze-LGS ezingenambala kunye negrey kwaye benza i-LGS kwi-EO Q-switch kunye nobukhulu be-6.12 mm × 6.12 mm × 40.3 mm. Kwi-2015, elinye iqela lophando kwiYunivesithi yaseShandong likhule ngempumelelo iikristale ze-LGS ezinobubanzi obuyi-50 ~ 55 mm, ubude be-95 mm, kunye nobunzima be-1100 g ngaphandle kweziphene ezicacileyo.

Kwi-2003, eli qela lophando likhankanywe ngasentla kwiYunivesithi yaseShandong livumela ukuba i-laser beam idlule kwikristal ye-LGS kabini kwaye ifake i-quarter wave plate ukuze ithintele i-optical rotation effect, ngaloo ndlela yaqonda ukusetyenziswa kwe-optical rotation effect ye-LGS crystal. I-LGS EO Q-switch yokuqala emva koko yenziwe kwaye isetyenziswe ngempumelelo kwinkqubo ye-laser.

Kwi-2012, uWang okqhubekayo. ilungise i-LGS electro-optic Q-switch enobungakanani be-7 mm × 7 mm × 45 mm, kwaye yaqonda imveliso ye-2.09 μm ye-laser beam ye-pulsed (520 mJ) kwisibane esimpompelwa isibane se-Cr, Tm, Ho: YAG . Ngo-2013, i-2.79 μm i-pulsed laser beam (216 mJ) imveliso yaphunyezwa kwi-flash-lamp pumped Cr, Er: YSGG laser, kunye nobubanzi be-pulse 14.36 ns. Ngo-2016, uMaokqhubekayo. kusetyenziswe i-5 mm × 5 mm × 25 mm i-LGS EO Q switch kwi-Nd: Inkqubo ye-laser ye-LuVO4, ukuqonda izinga lokuphindaphinda kwe-200 kHz, elilona zinga liphezulu lokuphindaphinda inkqubo ye-laser ye-LGS EO Q-etshintshiweyo echazwe esidlangalaleni ngoku.

Njengomathiriyeli we-EO Q-switching, i-LGS crystal inozinzo oluhle lobushushu kunye nomda womonakalo ophezulu, kwaye inokusebenza ngokuphindaphindiweyo ukuphindaphinda. Nangona kunjalo, kukho iingxaki ezininzi: (1) Isixhobo se-LGS crystal siyabiza, kwaye akukho mpumelelo ekutshintsheni i-gallium nge-aluminiyam enexabiso eliphantsi; (2) I-EO coefficient ye-LGS incinci. Ukuze kuncitshiswe i-voltage yokusebenza kwisiseko sokuqinisekisa ukuvuleka okwaneleyo, ubude be-crystal yesixhobo kufuneka bunyuswe ngokulandelelana, okunyusa nje iindleko kodwa kwandisa ilahleko yokufaka.

I-LGS Crystal-WISOPTIC TECHNOLOGY