I-laser yamandla encopho ephezulu inezicelo ezibalulekileyo kuphando lwezenzululwazi kunye nemimandla yoshishino lomkhosi njengokusetyenzwa kwelaser kunye nokulinganisa umbane. I-laser yokuqala yehlabathi yazalwa ngo-1960. Ngo-1962, uMcClung wasebenzisa iseli ye-nitrobenzene Kerr ukuphumeza ukugcinwa kwamandla kunye nokukhululwa ngokukhawuleza, ngaloo ndlela ukufumana i-laser ye-pulsed enamandla aphezulu aphezulu. Ukuvela kobuchwepheshe be-Q-switching yinkqubela ebalulekileyo kwimbali yophuhliso lwelaser yamandla aphezulu. Ngale ndlela, i-laser ye-pulse eqhubekayo okanye ebanzi yamandla axinzelelwa kwiipulse ezinobubanzi bexesha elimxinwa kakhulu. Amandla encopho ye-laser anyuswa ngemiyalelo emininzi yobukhulu. Itekhnoloji ye-electro-optic Q-switching inezibonelelo zexesha elifutshane lokutshintsha, ukuphuma kwe-pulse okuzinzileyo, ulungelelwaniso oluhle, kunye nokulahleka kwecango eliphantsi. Amandla aphezulu emveliso yelaser anokufikelela ngokulula kumakhulu eemegawathi.

I-Electro-optic Q-switching yitekhnoloji ebalulekileyo yokufumana ububanzi obumxinwa be-pulse kunye ne-laser yamandla aphezulu. Umgaqo wayo kukusebenzisa i-electro-optic effect yeekristale ukufezekisa utshintsho olukhawulezileyo ekulahlekeni kwamandla e-laser resonator, ngaloo ndlela kulawulwa ukugcinwa kunye nokukhutshwa ngokukhawuleza kwamandla kumgodi okanye kwi-laser medium. Impembelelo ye-electro-optical ye-crystal ibhekisela kwisiganeko somzimba apho isalathisi sokukhanya sokukhanya kwi-crystal sitshintsha ngamandla ombane osetyenzisiweyo we-crystal. Isenzeko apho isalathisi se-refractive sitshintsha kunye nokuqina kwendawo yombane esetyenzisiweyo inobudlelwane bomgca obizwa ngokuba yi-linear electro-optics, okanye i-Pockels Effect. Isenzeko sokuba isalathisi se-refractive sitshintshe kunye nesikwere samandla ombane asetyenzisiweyo anobudlelwane bomgca bubizwa ngokuba yi-secondary electro-optic effect okanye i-Kerr Effect.

Ngaphantsi kweemeko eziqhelekileyo, i-electro-optic effect ye-crystal ibaluleke kakhulu kune-secondary electro-optic effect. Umgca we-electro-optic effect isetyenziswa ngokubanzi kwi-electro-optic Q-switching technology. Ikhona kuzo zonke iikristale ezingama-20 ezinamaqela angeyiyo i-centrosymmetric point. Kodwa njengezinto ezifanelekileyo ze-electro-optic, ezi kristale azifuneki nje ukuba zibe nefuthe elicacileyo le-electro-optic, kodwa kunye noluhlu olufanelekileyo lokuhambisa ukukhanya, umda womonakalo omkhulu we-laser, kunye nokuzinza kweempawu ze-physicochemical, iimpawu zobushushu ezilungileyo, ukusetyenzwa ngokulula, kwaye ingaba ikristale enye enobungakanani obukhulu kunye nomgangatho ophezulu inokufumaneka. Ngokuqhelekileyo, iikristali ze-electro-optic ze-Q-switching ezisebenzayo kufuneka zixatyiswe ukusuka kule miba ilandelayo: (1) i-electro-optic coefficient esebenzayo; (2) i-laser umonakalo we-threshold; (3) uluhlu lokuhambisa ukukhanya; (4) ukuxhathisa kombane; (5) idielectric constant; (6) iimpawu ezibonakalayo kunye neekhemikhali; (7) ukuba nobuchule. Ngokuphuhliswa kwesicelo kunye nokuqhubela phambili kwezobuchwepheshe be-pulse emfutshane, ukuphindaphinda ukuphindaphinda okuphindaphindiweyo, kunye neenkqubo ze-laser zamandla aphezulu, iimfuno zokusebenza ze-Q-switching crystals ziyaqhubeka zikhula.

Kwinqanaba lokuqala lophuhliso lwetekhnoloji ye-electro-optic Q-switching, iikristale ezisetyenziswayo kuphela yayilithium niobate (LN) kunye ne-potassium di-deuterium phosphate (DKDP). Ikristale ye-LN inomda womonakalo we-laser ophantsi kwaye isetyenziswa ikakhulu kwiilaser zamandla aphantsi okanye aphakathi. Kwangaxeshanye, ngenxa yokubuyela ngasemva kwetekhnoloji yokulungiselela ikristale, umgangatho we-Optical we-LN crystal awuzinzanga ixesha elide, nto leyo ethintela ukusetyenziswa kwayo okubanzi kwii-lasers. Ikristale ye-DKDP yikristale ye-phosphoric acid potassium dihydrogen (KDP) crystal. Inomda womonakalo omkhulu kwaye isetyenziswa ngokubanzi kwiinkqubo ze-electro-optic Q-switching laser. Nangona kunjalo, i-crystal ye-DKDP ithande ukuthotywa kwaye inexesha elide lokukhula, elithintela ukusetyenziswa kwayo kwinqanaba elithile. Irubidium titanyl oxyphosphate (RTP) crystal, barium metaborate (β-BBO) crystal, lanthanum gallium silicate (LGS) crystal, lithium tantalate (LT) crystal ne potassium titanyl phosphate (KTP) crystal nazo zisetyenziswa kwi-electro-optic Q-switching laser. iinkqubo.

 Umgangatho ophezulu we-DKDP Pockels cell eyenziwe yi-WISOPTIC (@1064nm, 694nm)