Lanthanum gallium silicate (La₃Ga₅SiO₁₄, LGS) crystal belongs rau tripartite siv lead ua system, point pawg 32, pawg chaw P₃₂₁ (Nr. 150). LGS muaj ntau yam teebmeem xws li piezoelectric, electro-optical, optical rotation, thiab tseem tuaj yeem siv los ua cov khoom siv laser los ntawm doping. Nyob rau hauv 1982, Kaminskyua al. qhia txog kev loj hlob ntawm doped LGS crystals. Nyob rau hauv 2000, LGS muaju nrog txoj kab uas hla ntawm 3 nti thiab ntev ntawm 90 hli tau tsim los ntawm Uda thiab Buzanov.

LGS siv lead ua yog cov khoom siv piezoelectric zoo heev nrog kev txiav yam tsis muaj qhov kub thiab txias coefficient. Tab sis txawv ntawm piezoelectric daim ntaub ntawv, electro-optic Q-switching daim ntaub ntawv yuav tsum tau ntau dua siv lead ua zoo. Xyoo 2003, Kongua al. ntse loj hlob LGS muaju yam tsis muaj teeb meem macroscopic los ntawm kev siv Czochralski txoj kev, thiab pom tias qhov chaw loj hlob cuam tshuam rau cov xim ntawm cov muaju. Lawv tau txais cov xim tsis muaj xim thiab grey LGS muaju thiab ua LGS rau hauv EO Q-hloov nrog qhov loj ntawm 6.12 hli × 6.12 hli × 40.3 hli. Nyob rau hauv 2015, ib pab pawg neeg tshawb fawb nyob rau hauv Shandong University ntse loj hlob LGS muaju nrog txoj kab uas hla 50 ~ 55 hli, ntev 95 hli, thiab hnyav 1100 g yam tsis muaj teeb meem macro.

Hauv xyoo 2003, pawg tshawb fawb tau hais saum toj no hauv Shandong University cia laser beam dhau los ntawm LGS siv lead ua ob zaug thiab ntxig ib lub hlis twg yoj phaj los tiv thaiv qhov cuam tshuam qhov muag pom, yog li pom tau hais tias daim ntawv thov ntawm qhov kev sib hloov kho qhov muag ntawm LGS siv lead ua. Thawj LGS EO Q-hloov qhov ntawd tau tsim thiab ua tiav hauv laser system.

Xyoo 2012, Wang ua al. npaj LGS electro-optic Q-hloov nrog qhov loj ntawm 7 mm × 7 mm × 45 mm, thiab pom tau hais tias cov zis ntawm 2.09 μm pulsed laser beam (520 mJ) nyob rau hauv lub teeb nyem pumped Cr, Tm, Ho: YAG laser system . Nyob rau hauv 2013, 2.79 μm pulse laser beam (216 mJ) tso zis tau tiav nyob rau hauv lub teeb nyem Cr, Er: YSGG laser, nrog mem tes dav 14.36 ns. Xyoo 2016, Maua al. siv 5 hli × 5 hli × 25 hli LGS EO Q hloov hauv Nd:LuVO4 laser system, kom paub txog qhov rov ua dua ntawm 200 kHz, uas yog qhov siab tshaj qhov rov ua dua ntawm LGS EO Q-hloov laser system qhia rau pej xeem tam sim no.

Raws li EO Q-hloov cov khoom siv, LGS siv lead ua muaj qhov kub thiab txias thiab muaj kev puas tsuaj loj, thiab tuaj yeem ua haujlwm ntawm qhov ntau zaus. Txawm li cas los xij, muaj ntau yam teeb meem: (1) Cov khoom siv raw ntawm LGS siv lead ua yog kim, thiab tsis muaj kev cuam tshuam los hloov cov gallium nrog txhuas uas pheej yig dua; (2) EO coefficient ntawm LGS yog me me. Txhawm rau txo qhov kev khiav hauj lwm voltage ntawm qhov chaw ntawm kev ua kom lub aperture txaus, lub siv lead ua ntev ntawm cov cuab yeej yuav tsum tau linearly nce, uas tsis tsuas yog nce tus nqi tab sis kuj ua rau kom tsis muaj qhov nkag.

LGS Crystal - WISOPTIC TECHNOLOGY