Apha, isiphumo selahleko yokuthomalalisa kunye nokwandiswa kokusebenza kwelaser ye-Nd:YAG iiseramikhi ezicacileyo zaphandwa.Isebenzisa i-0.6 kwi-.% Nd:YAG intonga yeseramic ene-3 mm ububanzi kunye ne-65 mm ubude,i-coefficient yokusabalalisa kunye ne-absorption coefficient kwi-1064 nm ilinganiswe ukuba yi-0.0001 cm-1 kunye ne-0.0017 cm-1, ngokulandelanayo.Ngovavanyo lwe-laser ye-808 nm ye-side-pumped laser, i-avareji yamandla ephumayo ye-44.9 W iphunyezwe nge-optical-to-optical conversion efficient of 26.4%, eyayiphantse yafana ne-1 kwi-.% ye-crystal eyodwa.Ukwamkela i-885 nm yeskimu sokupompa ngokuthe ngqo ekupheleni, olu vavanyo lwelaser lulandelayo lubonise ukusebenza kakuhle kwe-optical ye-62.5% kunye namandla aphezulu okuphuma kwe-144.8 W afunyenwe kumandla ompompo afunxayo we-231.5 W. kwi-Nd: YAG i-laser ceramic kulwazi lwethu.Ingqina ukuba amandla aphezulu kunye nokusebenza okuphezulu kwelaser kunokwenziwa ngumgangatho ophezulu we-optical optical Nd:YAG intonga ye-ceramic kunye ne-885 nm yetekhnoloji yokumpompa ngokuthe ngqo.
Eli phepha libonisa amandla aphezulu e-pulse, ububanzi obumxinwa, ububanzi be-infrared (MIR) laserat 6.45 µm, esekelwe kwi-BaGa4Se7 (BGSe) i-crystal optical parametric oscillator (OPO) empontshwe yi-1.064 µm laser.Amandla e-pulse aphezulu kwi-6.45 µm aye phezulu kwi-1.23 mJ, kunye nobubanzi be-pulse ye-24.3 ns kunye nesantya sokuphindaphinda kwe-10 Hz, ehambelana nokuguqulwa kobuchule be-optical-optical ye-2.1%, ukusuka ekukhanyeni kwepompo 1.064 µm ukuya kwi-idler light µ4.45.I-idler light linewidth yayimalunga ne-6.8 nm.Okwangoku, sibale ngokuchanekileyo imeko ye-OPO yokumatanisa isigaba kwi-BGSe crystal imponthwe nge-1.064 µm laser, kwaye inkqubo yokulinganisa amanani yenziwa ukuhlalutya igalelo-outputcharacteristics kwi-6.45 µm, kunye ne isiphumo sobude bekristale ekusebenzeni kokuguqulwa.Isivumelwano esihle sifunyenwe phakathi kokulinganisa kunye nokulinganisa.Ngokolwazi lwethu olungcono, eli lelona gunya liphezulu le-pulse kwi-6.45 µm, kunye nobubanzi bomgca obumxinwa kuyo nayiphi na imeko eqinileyo ye-MIR ns laser kwi-BGSe-OPO emponthwe nge-oscillator elula eyi-1.064 µm.Le nkqubo ye-OPO ilula kwaye ihlangeneyo ye-6.45 µm, inamandla aphezulu e-pulse kunye nobubanzi obumxinwa, inokuhlangabezana neemfuno zokusikwa kwezicubu kunye nokuphucula ukuchaneka kokukhutshwa kwezicubu.
Kweli phepha, sibonisa i-langasite (LGS) i-electro-optic Ho: YAG i-cavity-dumped laser ecinezela ukuxhomekeka kokuzuza kwexesha le-pulse kwii-lasers ezitshintshiweyo ze-Q.Ubude be-pulse eqhubekayo ye-7.2 ns yaphunyezwa kwizinga lokuphindaphinda kwe-100 kHz.Ukuzuza kwi-crystal ye-LGS ayinayo i-reverse piezoelectric ring effect kunye ne-thermal-induced depolarization, uloliwe ozinzileyo we-pulse waphunyezwa kumandla ophumayo we-43 W. Ngethuba lokuqala, ukusetyenziswa kwe-laser ye-cavity-dumped laser ephakathi kwe-infrared (phakathi--phakathi-i-infrared) I-IR) i-ZnGeP2 (i-ZGP) i-oscillator ye-parametric oscillator (i-OPO) iphunyeziwe, ibonelela ngendlela ethembekileyo yokufikelela kumazinga aphezulu okuphindaphinda kunye namaxesha amafutshane e-nanosecond pulse ye-high-power mid-infrared ZGP OPOs.Umyinge wamandla ophumayo wawuyi-15 W, ehambelana nobude be-pulse ye-4.9 ns kunye nesantya sokuphindaphinda i-100 kHz.
Sibonisa okokuqala ukuveliswa kwe-octave-spanning mid-infrared usebenzisa i-crystal ye-BGSe engabonakaliyo.Inkqubo yelaser ye-Cr:ZnS ehambisa i-28-fs pulses kumgama ophakathi we-wavelength ye-2.4 µm isetyenziswa njengomthombo wempompo, oqhuba i-intra-pulse difference frequency production ngaphakathi kwecrystal ye-BGSe.Ngenxa yoko, ibroadband ehambelanayo ephakathi kwe-infrared eqhubekayo esuka kwi-6 ukuya kwi-18 µm ifunyenwe.Ibonisa ukuba i-crystal ye-BGSe sisixhobo esithembisayo se-broadband, isizukulwana esincinci se-infrared phakathi kwe-infrared ngokusebenzisa ukuguqulwa okuphindaphindiweyo kunye nemithombo yempompo ye-femtosecond.
I-1.53 W yonke i-nanosecond yelizwe lonke ipulsed mid-infrared laser kwi-6.45 µm
