Iyo inodarika 60% kunyatsoita Nd: YAG yakajeka ceramic laser ine yakaderera attenuation kurasikirwa maitiro


Pano, attenuation kurasikirwa maitiro uye laser performance yekusimudzira yeNd: YAG yakajeka ceramics yakaongororwa.Kushandisa 0.6 pa.% Nd: YAG ceramic tsvimbo ine 3 mm dhayamita uye 65 mm kureba, iyokuparadzira coefficient uye absorption coefficient pa 1064 nm yakayerwa kuva 0.0001 cm-1 uye 0.0017 cm-1, maererano.Paye 808 nm side-pumped laser experiment, avhareji yesimba rekubuda kwe44.9 W yakawanikwa ne-optical-to-optical conversion performance ye26.4%, yakada kufanana neye1 pa.% single crystal.Kutora iyo 885 nm yakananga yekupedzisira-pumped scheme, inotevera bvunzo dzelaser dzakaratidza kugona kwepamusoro kwe62.5% uye yakanyanya kubuda simba re144.8 W yakawanikwa pakubatwa simba repombi re231.5 W. muNd: YAG ceramic laser kune ruzivo rwedu.Zvinotaridza kuti simba repamusoro uye rakanyanya kushanda laser kubuda rinogona kugadzirwa nemhando yepamusoro yemhando Nd: YAG ceramic tsvimbo pamwe ne885 nm yakananga kupomba tekinoroji.

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High Pulse Energy, Narrow Linewidth 6.45 µm kubva kune Optical Parametric Oscillator muBaGa4Se7 Crystal


Iri bepa rinopa yakakwira pulse simba, nhete mutsara, yepakati-infrared (MIR) laserat 6.45 µm, yakavakirwa paBaGa4Se7 (BGSe) crystal optical parametric oscillator (OPO) inopombwa ne1.064 µm laser.Iyo yakanyanya pulse simba pa6.45 µm yaisvika ku1.23 mJ, ine pulse yakafara ye24.3 ns uye kudzokorora mwero we10 Hz, inoenderana neiyo optical-optical kutendeuka efficacy ye2.1%, kubva papombi mwenje 1.064 µm kuenda kune isingaite mwenje µm6.Idler light linewidth yaive ingangoita 6.8 nm. Zvichakadaro, isu takaverenga nemazvo OPO phase-matching mamiriro paBGSe crystal yakapombwa ne1.064 µm laser, uye manhamba simulation system yakaitwa kuongorora kupinza-outputcharacteristics pa6.45 µm, pamwe neiyo Mhedzisiro yehurefu hwekristaro pane kutendeuka kushanda zvakanaka.Chibvumirano chakanaka chakawanikwa pakati pekuyera nekuenzanisa.Sekuziva kwedu, iyi ndiyo simba repamusoro-soro rekupuruzira pa6.45 µm, iine mutsetse wakatetepa kune chero-yakasimba-nyika MIR ns laser muBGSe-OPO inopombwa neikareruka 1.064 µm oscillator.Iyi yakapfava uye compact 6.45 µm OPO sisitimu, ine yakakwira pulse simba uye nhete mutsara, inogona kusangana nezvinodiwa pakucheka matishu uye kunatsiridza kubviswa kwematishu.

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43 W, 7 ns inoramba iine pulse duration, high-repetition-rate langasite cavity-dumped Ho:YAG laser uye kushandiswa kwayo mukati me-infrared ZGP OPOs.


Mubepa rino, isu tinoratidza langasite (LGS) electro-optic Ho: YAG mhango-yakaraswa laser iyo inodzvanya kutsamira kwekuwana kutsamira kwekureba kwepulse muQ-switched lasers.Kuramba kuripo kwe7.2 ns kwakawanikwa pachiyero chekudzokorora che100 kHz.Kubatsirwa kubva kuLGS crystal haina zvakakosha reverse piezoelectric ring effect uye thermally induced depolarization, chitima chemhepo chakagadzikana chakawanikwa pane simba rinobuda re 43 W. Kwenguva yokutanga, kushandiswa kwe-cavity-dumped laser pakati pe-infrared (pakati- IR) ZnGeP2 (ZGP) optical parametric oscillator (OPO) yakazadzikiswa, ichipa nzira yakavimbika yekuwana yakakwirira yekudzokorora mitengo uye pfupi nanosecond pulse nguva dzepamusoro-simba pakati-infrared ZGP OPOs.Avhareji yekubuda kwesimba yaive 15 W, inoenderana nekupuruzira nguva ye4.9 ns uye chiyero chekudzokorora che100 kHz.

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Broadband, mashoma-kutenderera yepakati-infrared kuenderera kwakavakirwa pane intra-pulse musiyano frequency chizvarwa neBGSe makristasi.


Isu tinoratidza kekutanga chizvarwa cheoctave-inotenderera yepakati-infrared tichishandisa BGSe isina mutsetse kristaro.A Cr:ZnS laser system inoburitsa 28-fs pulses panzvimbo yepakati yavelength ye2.4 µm inoshandiswa sepombi sosi, inotyaira intra-pulse musiyano frequency generation mukati meBGSe crystal.Nekuda kweizvozvo, yakabatana Broadband yepakati-infrared inoenderera kubva pa6 kusvika 18 µm yawanikwa.Zvinoratidza kuti BGSe crystal chinhu chinovimbisa chebroadband, mashoma-kutenderera pakati-infrared chizvarwa kuburikidza ne frequency kutendeuka kutendeuka nefemtosecond pombi masosi.

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1.53 W yese-yakasimba-nyika nanosecond pulsed yepakati-infrared laser pa6.45 µm

Iyo compact uye yakasimba yese-yakasimba-nyika yepakati-infrared (MIR) laser pa6.45 µm ine yakakwirira avhareji yekubuda simba uye pedyo-Gaussian beam mhando inoratidzwa.Simba guru rinobuda re 1.53 W rine pulse upamhi hunosvika 42 ns pa 10 kHz rinowanikwa uchishandisa ZnGeP2 (ZGP) optical parametric oscillator (OPO).Iri ndiro simba repamusoro-soro repakati pa 6.45 µm yechero-solid-state laser kusvika pakuziva kwedu.Avhareji yemhando yemhando chinhu chinoyerwa kuita M2 = 1.19.Uyezve, kusimba kwesimba rekubuda kwepamusoro kunosimbiswa, nekuchinja kwesimba kuri pasi pe1.35% rms pamusoro pe2 h, uye laser inogona kumhanya nemazvo kweanopfuura 500 h yakazara.Kushandisa
iyi 6.45 µm pulse senzvimbo yemwaranzi, kubviswa kwehuropi hwemhuka kunoedzwa.Uyezve, iyo chibvumirano chekukuvara mhedzisiro inoongororwa kekutanga, kusvika pakuziva kwedu, uye mhedzisiro inoratidza kuti iyi MIR laser ine yakanakisa ablation kugona, ichiita iyo inogona kutsiva yemahara erekitironi lasers.
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