Lub siab ncov lub zog lasers muaj cov ntawv thov tseem ceeb hauv kev tshawb fawb thiab kev lag luam tub rog xws li laser ua thiab ntsuas photoelectric. Lub ntiaj teb thawj laser tau yug los hauv 1960's. Xyoo 1962, McClung tau siv nitrobenzene Kerr cell kom ua tiav lub zog cia thiab tso tawm sai, yog li kom tau txais cov laser pulsed nrog lub zog siab. Qhov tshwm sim ntawm Q-switching thev naus laus zis yog qhov tseem ceeb hauv keeb kwm ntawm lub siab ncov lub zog laser kev loj hlob. Los ntawm txoj kev no, nruam lossis dav mem tes laser zog yog compressed rau hauv pulses nrog lub sij hawm nqaim heev. Lub laser ncov lub zog yog nce los ntawm ntau qhov kev txiav txim ntawm qhov loj. Lub tshuab electro-optic Q-hloov tshuab muaj qhov zoo ntawm lub sijhawm luv luv, cov khoom siv mem tes ruaj khov, zoo synchronization, thiab qis kab noj hniav. Lub zog siab tshaj plaws ntawm cov zis laser tuaj yeem ncav cuag ntau pua megawatts.

Electro-optic Q-switching yog ib qho tseem ceeb thev naus laus zis kom tau txais cov mem tes dav dav thiab siab ncov lub zog lasers. Nws lub hauv paus ntsiab lus yog siv cov nyhuv electro-optic ntawm cov muaju kom ua tiav cov kev hloov pauv sai ntawm lub zog poob ntawm lub laser resonator, yog li tswj kev cia thiab tso tawm sai ntawm lub zog hauv cov kab noj hniav lossis lub laser nruab nrab. Cov nyhuv electro-optical ntawm cov siv lead ua yog hais txog lub cev tshwm sim nyob rau hauv uas lub refractive index ntawm lub teeb nyob rau hauv lub siv lead ua hloov nrog lub zog ntawm cov ntaub ntawv siv hluav taws xob teb ntawm cov siv lead ua. Qhov tshwm sim uas qhov kev hloov pauv hloov pauv thiab qhov kev siv hluav taws xob siv hluav taws xob muaj kev sib raug zoo yog hu ua linear electro-optics, lossis Pockels Effect. Qhov tshwm sim uas qhov kev hloov pauv hloov pauv thiab lub xwmfab ntawm lub zog siv hluav taws xob muaj kev sib raug zoo yog hu ua cov nyhuv electro-optic thib ob lossis Kerr Effect.

Raws li ib txwm muaj, cov nyhuv linear electro-optic ntawm cov siv lead ua yog qhov tseem ceeb dua li cov nyhuv electro-optic thib ob. Cov nyhuv linear electro-optic yog siv dav hauv electro-optic Q-hloov tshuab. Nws muaj nyob rau hauv tag nrho 20 crystals nrog non-centrosymmetric point pawg. Tab sis raws li cov khoom siv hluav taws xob zoo tshaj plaws, cov khoom siv lead ua no tsis yog tsuas yog yuav tsum muaj cov txiaj ntsig zoo electro-optic, tab sis kuj tsim nyog lub teeb kis tau tus mob, siab laser kev puas tsuaj, thiab kev ruaj ntseg ntawm lub cev muaj zog, cov yam ntxwv zoo kub, yooj yim ntawm kev ua, thiab seb ib qho siv lead ua uas loj loj thiab zoo tuaj yeem tau txais. Feem ntau hais lus, cov tswv yim electro-optic Q-switching crystals yuav tsum tau ntsuas los ntawm cov hauv qab no: (1) zoo electro-optic coefficient; (2) laser kev puas tsuaj pib; (3) Lub teeb kis tau tus mob ntau yam; (4) hluav taws xob tiv taus; (5) dielectric tsis tu ncua; (6) lub cev thiab tshuaj lom neeg; (7) machinability. Nrog rau kev txhim kho ntawm daim ntawv thov thiab thev naus laus zis kev nce qib ntawm cov mem tes luv luv, kev rov ua haujlwm ntau zaus, thiab lub zog laser siab zog, qhov kev ua tau zoo ntawm Q-hloov crystals tseem nce ntxiv.

Nyob rau theem pib ntawm txoj kev loj hlob ntawm electro-optic Q-hloov tshuab, tsuas yog siv lead ua siv lead ua yog lithium niobate (LN) thiab potassium di-deuterium phosphate (DKDP). LN siv lead ua muaj qhov chaw ua haujlwm tsis zoo laser thiab feem ntau yog siv nyob rau hauv qis lossis nruab nrab lub zog lasers. Nyob rau tib lub sijhawm, vim qhov rov qab ntawm cov txheej txheem siv lead ua kev npaj, qhov zoo ntawm LN siv lead ua tsis ruaj khov rau lub sijhawm ntev, uas tseem txwv nws txoj kev siv dav hauv lasers. DKDP Crystal yog deuterated phosphoric acid potassium dihydrogen (KDP) siv lead ua. Nws muaj qhov kev puas tsuaj loj heev thiab tau siv dav hauv electro-optic Q-hloov laser tshuab. Txawm li cas los xij, DKDP siv lead ua yog qhov ua rau tsis zoo thiab muaj lub sijhawm loj hlob ntev, uas txwv nws daim ntawv thov rau qee yam. Rubidium titanyl oxyphosphate (RTP) siv lead ua, barium metaborate (β-BBO) siv lead ua, lanthanum gallium silicate (LGS) siv lead ua, lithium tantalate (LT) siv lead ua thiab potassium titanyl phosphate (KTP) siv lead ua kuj siv hauv electro-optic Q-switching laser tshuab.

 Zoo siab DKDP Pockels cell ua los ntawm WISOPTIC (@1064nm, 694nm)