E feta 60% e sebetsang hantle Nd: YAG laser e pepeneneng ea ceramic e nang le phello e tlase ea tahlehelo ea tahlehelo


Mona, ho ile ha fuputsoa phello ea tahlehelo ea ho nyahama le ntlafatso ea ts'ebetso ea laser ea Nd:YAG e pepeneneng ea ceramics.E sebelisa 0.6 at.% Nd:YAG rod ea ceramic e bophara ba 3 mm le bolelele ba 65 mm,ho hasanya coefficient le absorption coefficient ho 1064 nm li ne li lekanngoa ho ba 0.0001 cm-1 le 0.0017 cm-1, ka ho latellana.Bakeng sa teko ea laser ea 808 nm side-pumped laser, matla a karolelano ea matla a 44.9 W a fihletsoe ka katleho ea phetoho ea optical-to-optical ea 26.4%, e neng e batla e tšoana le ea 1 ho.% kristale e le 'ngoe.Ho amohela morero oa 885 nm o tobileng oa ho qetela, liteko tse latelang tsa laser li bontšitse katleho e phahameng ea optical ea 62.5% le matla a phahameng a 144.8 W a fumanoe ka matla a pompo a kenngoa a 231.5 W. Hona joale e ne e le ts'ebetso e phahameng ka ho fetisisa ea ho fetola optical e fumanoang ho Nd: YAG ceramic laser ho tsebo ea rona.E paka hore matla a phahameng le tlhahiso e phahameng ea laser e ka hlahisoa ke boleng bo phahameng ba optical Nd: YAG ceramic rod hammoho le theknoloji ea 885 nm ea ho pompa ka kotloloho.

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High Pulse Energy, Narrow Linewidth 6.45 µm ho tloha ho Optical Parametric Oscillator ho BaGa4Se7 Crystal


Pampiri ena e fana ka matla a phahameng a pulse energy, linewidth e patisaneng, mid-infrared (MIR) laserat 6.45 µm, e thehiloeng ho BaGa4Se7 (BGSe) crystal optical parametric oscillator (OPO) pumped by1.064 µm laser.Matla a phahameng a pulse ho 6.45 µm a ne a le ho 1.23 mJ, ka bophara ba pulse ea 24.3 ns le sekhahla sa ho pheta-pheta sa 10 Hz, se tsamaellanang le katleho ea phetoho ea optical-optical ea 2.1%, ho tloha pompong ea leseli 1.064 µm ho ea ho leseli le sa sebetseng µm 4.45 µm6.Khabareng, re balile ka nepo boemo ba ho bapisa karolo ea OPO ho BGSe crystal e pompetsoeng ka laser ea 1.064 µm, 'me mokhoa oa ho etsisa linomoro o ile oa etsoa ho sekaseka input-outputcharacteristics ho 6.45 µm, hammoho le phello ea bolelele ba kristale ka katleho ea phetoho.Ho ile ha fumanoa tumellano e ntle pakeng tsa tekanyo le ketsiso.Ho ea ka tsebo ea rona, ona ke matla a phahameng ka ho fetisisa a pulse ho 6.45 µm, ka bophara bo patisaneng ka ho fetesisa bakeng sa laser efe kapa efe e tiileng ea MIR ns ho BGSe-OPO e pompetsoeng ke oscillator e bonolo ea 1.064 µm.Sistimi ena e bonolo le e kopaneng ea 6.45 µm OPO, e nang le matla a phahameng a ho otla ha pelo le bophara bo moqotetsane, e ka fihlela litlhoko tsa ho itšeha le ho ntlafatsa ts'ebetso ea ho tsoa ha lisele.

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43 W, 7 ns nako e sa khaotseng ea ho otla ha pelo, lebelo la ho pheta-pheta la langasite cavity-dumped Ho:YAG laser le ho sebelisoa ha eona ka har'a li-infrared ZGP OPOs


Pampiring ena, re bonts'a langasite (LGS) electro-optic laser Ho:YAG cavity-dumped laser e hatellang ho itšetleha ha nako ea ho otla ha pelo ho li-laser tsa Q-switched.Nako e sa khaotseng ea 7.2 ns e ile ea finyelloa ka lebelo la ho pheta-pheta la 100 kHz.Ho rua molemo ho kristale ea LGS ha ho na phello ea bohlokoa ea reverse piezoelectric ring le thermally induced depolarization, terene e tsitsitseng ea pulse e ile ea finyelloa ka matla a hlahisoang ke 43 W. Ka lekhetlo la pele, ts'ebeliso ea laser cavity-dumped in the mid-infrared (mid- IR) ZnGeP2 (ZGP) optical parametric oscillator (OPO) e se e lemohuoe, e fana ka mokhoa o tšepahalang oa ho fihlela litekanyetso tse phahameng tsa ho pheta-pheta le linako tse khutšoane tsa nanosecond pulse bakeng sa li-OPO tsa ZGP tse matla a mahareng a infrared.Ka karolelano matla a tlhahiso e ne e le 15 W, e lumellanang le nako ea pulse ea 4.9 ns le lebelo la ho pheta-pheta la 100 kHz.

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Broadband, e 'maloa ea potoloho e bohareng ba infrared continuum e ipapisitseng le phapano ea maqhubu a intra-pulse ka likristale tsa BGSe.


Re bonts'a lekhetlo la pele tlhahiso ea octave-spanning mid-infrared ho sebelisa kristale e sa tloaelehang ea BGSe.Sistimi ea laser ea Cr:ZnS e tsamaisang maqhubu a 28-fs sebakeng se bohareng sa leqhubu la 2.4 µm e sebelisoa joalo ka mohloli oa pompo, e tsamaisang tlhahiso ea maqhubu a phapano ea intra-pulse ka har'a kristale ea BGSe.Ka lebaka leo, ho se ho fumanwe ho fumanwe ho tswetse pele ho tswella ha Broadband mid-infrared continuum ho tloha ho 6 ho isa ho 18 µm.E bonts'a hore kristale ea BGSe ke sesebelisoa se ts'episang bakeng sa marang-rang a marang-rang, moloko o fokolang oa potoloho ea bohareng ba infrared ka phetoho ea maqhubu a tlase ka mehloli ea pompo ea femtosecond.

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1.53 W ea boemo bo tiileng ba nanosecond e sisinyehileng bohareng ba lesela la infrared ka 6.45 µm

Leseare e kopaneng le e tiileng ea boemo bo botle ba bohareng ba infrared (MIR) ea 6.45 µm e nang le matla a pharalletseng a holimo le boleng bo haufi ba Gaussian ba lebone boa bontšoa.Matla a phahameng a tlhahiso ea 1.53 W ka bophara ba pulse hoo e ka bang 42 ns ho 10 kHz e finyelloa ka ho sebelisa ZnGeP2 (ZGP) optical parametric oscillator (OPO).Ona ke matla a holimo-limo a 6.45 µm a laser efe kapa efe e tiileng ea naha ho latela tsebo ea rona.Karolelano ea boleng ba boleng bo lekantsoeng ho ba M2 = 1.19.Ho feta moo, botsitso ba matla a phahameng bo tiisitsoe, ka ho feto-fetoha ha matla ho ka tlase ho 1.35% rms ho feta 2 h, 'me laser e ka sebetsa hantle bakeng sa lihora tse fetang 500 ka kakaretso.Ho sebelisa
pulse ena ea 6.45 µm e le mohloli oa mahlaseli, ho ntšoa ha lisele tsa boko ba phoofolo ho lekoa.Ntle le moo, ts'enyehelo ea ts'enyehelo ea ts'enyehelo e hlahlobjoa ka lekhetlo la pele, ho latela tsebo ea rona, 'me liphetho li bonts'a hore laser ena ea MIR e na le bokhoni bo botle ba ho ntša mali, e e etsa hore e ka nkela li-laser tsa mahala tsa elektronike.
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