High peak simba lasers ane zvakakosha mashandisirwo mukutsvagisa kwesainzi uye mauto indasitiri minda senge laser processing uye photoelectric kuyerwa. Laser yekutanga yenyika yakazvarwa muma1960. Muna 1962, McClung akashandisa nitrobenzene Kerr cell kuwana simba rekuchengetedza uye nekukasira kuburitswa, nekudaro kuwana pulsed laser ine yakakwirira yepamusoro simba. Kubuda kweQ-switching tekinoroji chiitiko chakakosha munhoroondo yepamusoro peak simba laser kusimudzira. Neiyi nzira, inoenderera kana yakafara pulse laser simba inotsikirirwa kuita pulses nehupamhi hwenguva yakatetepa zvakanyanya. Iyo laser peak simba inowedzerwa nemaodha akati wandei ehukuru. Iyo electro-optic Q-switching tekinoroji ine zvakanakira zvenguva pfupi yekuchinja, yakagadzikana pulse kubuda, kuwiriranisa kwakanaka, uye yakaderera gomba kurasikirwa. Simba repamusoro reiyo inobuda laser rinogona kusvika nyore nyore mazana emamegawatts.

Electro-optic Q-switching tekinoroji yakakosha yekuwana yakatetepa pulse upamhi uye yakakwirira peak simba lasers. Nheyo yayo ndeye kushandisa iyo electro-optic mhedzisiro yemakristasi kuti uwane nekukurumidza shanduko mukurasikirwa kwesimba kwelaser resonator, nekudaro ichidzora iyo yekuchengetedza uye nekukurumidza kuburitswa kwesimba mugomba kana laser medium. Iyo electro-optical effect yekristaro inoreva chiitiko chemuviri umo iyo refractive index yechiedza mukristaro inoshanduka nekusimba kweiyo inoshandiswa yemagetsi munda wekristaro. Chiitiko umo iyo refractive index inoshanduka uye kusimba kwenzvimbo yemagetsi inoshandiswa ine hukama hwemutsara inonzi linear electro-optics, kana Pockels Effect. Chiitiko chekuti refractive index inoshanduka uye sikweya yesimba remagetsi rinoshandiswa rine hukama hwemutsara inonzi yechipiri electro-optic athari kana Kerr Effect.

Mumamiriro ezvinhu akajairwa, iyo mutsara electro-optic mhedzisiro yekristaro yakakosha zvakanyanya kupfuura yechipiri electro-optic athari. Iyo linear electro-optic mhedzisiro inoshandiswa zvakanyanya mu electro-optic Q-switching tekinoroji. Inowanikwa mune ese makumi maviri makristasi ane asiri-centrosymmetric point mapoka. Asi seyakanaka electro-optic zvinhu, makristasi aya haangodikanirwe kuve neakanyanya kujeka electro-optic mhedzisiro, asiwo akakodzera mwenje wekutapurirana renji, yakakwira laser kukuvara kwechikumbaridzo, uye kugadzikana kwe physicochemical zvivakwa, yakanaka tembiricha maitiro, nyore kugadzirisa, uye kana kristaro imwe chete ine hukuru hukuru uye yakakwirira yepamusoro inogona kuwanikwa. Kazhinji kutaura, maitiro e-electro-optic Q-switching makristasi anoda kuyerwa kubva kune zvinotevera: (1) inoshanda electro-optic coefficient; (2) laser kukuvara chikumbaridzo; (3) chiedza chekufambisa mararamiro; (4) resistivity yemagetsi; (5) dielectric nguva dzose; (6) zvinhu zvemuviri nemakemikari; (7) machinability. Nekuvandudzwa kwekushandisa uye tekinoroji kufambira mberi kwepfuti pulse, yakakwirira kudzokorora frequency, uye yakakwirira simba laser masisitimu, zvinodiwa zvekuita zveQ-switching makristasi zvinoramba zvichiwedzera.

Muchikamu chekutanga chekugadzirwa kwe electro-optic Q-switching tekinoroji, makristasi aingoshandiswa aive lithium niobate (LN) uye potassium di-deuterium phosphate (DKDP). LN crystal ine yakaderera laser kukuvara chikumbaridzo uye inonyanya kushandiswa mune yakaderera kana yepakati simba lasers. Panguva imwecheteyo, nekuda kwekudzokera kumashure kwekristaro yekugadzirira tekinoroji, iyo optical mhando yeLN crystal yanga isina kugadzikana kwenguva yakareba, iyo zvakare inodzikamisa kushandiswa kwayo kwakakura mumalaser. DKDP crystal inonzi deuterated phosphoric acid potassium dihydrogen (KDP) crystal. Iyo ine yakanyanya kukuvadza chikumbaridzo uye inoshandiswa zvakanyanya mu electro-optic Q-switching laser system. Nekudaro, DKDP kristaro inokonzeresa uye ine nguva yakareba yekukura, iyo inomisa kushanda kwayo kune imwe nhanho. Rubidium titanyl oxyphosphate (RTP) crystal, barium metaborate (β-BBO) crystal, lanthanum gallium silicate (LGS) crystal, lithium tantalate (LT) crystal uye potassium titanyl phosphate (KTP) crystal inoshandiswawo mu electro-optic Q-switching laser. systems.

 Yemhando yepamusoro DKDP Pockels cell yakagadzirwa neWISOPTIC (@1064nm, 694nm)