Kurenga 60% imikorere Nd: YAG ibonerana ceramic laser hamwe ningaruka zo gutakaza


Hano, ingaruka zo gutakaza attenuation hamwe na laser yo kongera imikorere ya Nd: YAG ceramics ibonerana.Ukoresheje 0,6 kuri.% Nd: YAG ceramic inkoni ifite mm 3 z'uburebure na mm 65 z'uburebure ,.Coefficient ikwirakwiza hamwe na coeffisente yo kwinjiza kuri 1064 nm yapimwe kuba cm 0.0001 cm-1 na 0.0017 cm-1.Kubushakashatsi bwa 808 nm kuruhande rwa pompe ya laser, impuzandengo yo gusohora ingufu za 44.9 W yagezweho hamwe na optique-kuri-optique yo guhindura 26.4%, ibyo bikaba byari hafi ya 1 kuri.% Crystal imwe.Kwemeza gahunda ya 885 nm itaziguye ya pompe, ibizamini bya laser bikurikira byerekanaga imbaraga za optique zingana na 62.5% kandi ingufu zisohoka za 144.8 W zabonetse kumashanyarazi ya pompe ya 231.5 W. Ibi byari kugeza ubu uburyo bwiza bwo guhindura optique bwabonye muri Nd: YAG ceramic laser kubumenyi bwacu.Irerekana ko imbaraga nyinshi hamwe nubushobozi buhanitse bwa laser zishobora kubyara umusaruro mwiza wo hejuru Nd: YAG ceramic inkoni hamwe na tekinoroji ya pompe 885 nm.

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Ingufu Zirenze, Umuyoboro Mugari 6.45 µm uvuye muri Optical Parametric Oscillator muri BaGa4Se7 Crystal


Uru rupapuro rugaragaza ingufu nyinshi, impagarike ntoya, hagati ya infrarafarike (MIR) laserat 6.45 µm, ishingiye kuri BaGa4Se7 (BGSe) kristal optique parametric oscillator (OPO) yavomwe na 1.064 µm laser.Ingufu ntarengwa za pulse kuri 6.45 µm zigeze kuri 1.23 mJ, hamwe nubugari bwa pulse ya 24.3 ns nigipimo cyo gusubiramo cya 10 Hz, bihuye na optique-optique yo guhindura imikorere ya 2,1%, kuva kumuri pompe 1.064 µm kugeza kumucyo udafite 6.45 µm.Umucyo utagira umumaro wagera kuri 6.8 nm. Hagati aho, twabaze neza imiterere ya OPO ihuza imiterere ya BGSe kristu yavomwe na 1.064 µm laser, hanyuma hakorwa uburyo bwo kwigana imibare kugirango isesengure ibyinjira-bisohoka kuri 6.45 µm, kimwe na Ingaruka yuburebure bwa kristu kumurongo wo guhindura imikorere.Amasezerano meza yabonetse hagati yo gupima no kwigana.Dukurikije ubumenyi dufite, iyi niyo mbaraga ndende ya pulse kuri 6.45 µm, hamwe numuyoboro mugari kuri buri kintu cyose gikomeye-cya MIR ns laser muri BGSe-OPO yavomwe na 1.064 µm oscillator.Ubu buryo bworoshye kandi bworoshye 6.45 µm OPO sisitemu, hamwe ningufu nyinshi za pulse hamwe na linewidth yagutse, irashobora kuzuza ibisabwa mugukata ingirabuzimafatizo no kunoza neza neza.

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43 W.


Muri iyi nyandiko, turerekana langasite (LGS) electro-optique Ho: YAG cavity-yajugunywe lazeri ikuraho inyungu ziterwa nigihe cyimpiswi muri Q-yahinduwe.Igihe cyose impiswi ihoraho ya 7.2 ns yagezweho ku gipimo cyo gusubiramo 100 kHz.Kwungukira kuri kristu ya LGS nta ngaruka nini ihari ya piezoelectric impeta hamwe na depolarisiyasi iterwa n'ubushyuhe, gari ya moshi ihamye yagezweho ku mbaraga ziva kuri 43 W. Ku nshuro ya mbere, ikoreshwa rya lazeri yajugunywe mu cyuma hagati ya infragre (hagati- IR.Impuzandengo yo gusohora ingufu yari 15 W, ihuye na pulse igihe kingana na 4.9 ns nigipimo cyo gusubiramo 100 kHz.

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Umuyoboro mugari, bike-cycle hagati-ya-infragre ikomeza ishingiye ku gutandukanya intera-pulse itandukaniro inshuro hamwe na BGSe kristu


Twerekana kunshuro yambere igisekuru cya octave-izenguruka hagati ya infragre ikoresheje BGSe idafite umurongo.A Cr: Sisitemu ya ZnS itanga 28-fs pulses kumurongo wo hagati wa 2,4 µm ikoreshwa nkisoko ya pompe, itwara intera-pulse itandukanya inshuro nyinshi imbere muri kirisiti ya BGSe.Nkigisubizo, umurongo mugari mugari hagati ya infragre ikomeza kuva kuri 6 kugeza 18 µm.Irerekana ko kristu ya BGSe ari ibikoresho bitanga umurongo mugari, bike-cycle hagati ya infragreire binyuze mumurongo wo hasi uhinduranya hamwe na pompe femtosekond.

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1.53 W byose-bikomeye-leta ya nanosekond yasunitswe hagati ya lazeri hagati ya 6.45 µm

Laser yoroheje kandi ikomeye-ikomeye-hagati-ya-infrarafarike (MIR) laser kuri 6.45 µm hamwe nimbaraga zo hejuru zisohoka hamwe nubwiza bwibiti bya Gaussiya birerekanwa.Imbaraga nini zisohoka zingana na 1.53 W hamwe nubugari bwa pulse hafi 42 ns kuri 10 kHz bigerwaho hifashishijwe ZnGeP2 (ZGP) optique parametric oscillator (OPO).Izi nimbaraga ndende cyane kuri 6.45 µm ya lazeri yose-ikomeye-ya laser kugeza kubumenyi bwacu.Impuzandengo yubuziranenge bwibiti bipimwa kuba M2 = 1.19.Byongeye kandi, ingufu nyinshi zitanga ingufu zemejwe, hamwe n’imihindagurikire y’amashanyarazi iri munsi ya 1.35% rms hejuru ya 2 h, kandi lazeri irashobora gukora neza kurenza 500 h yose hamwe.Gukoresha
iyi 6.45 µm pulse nkisoko yimirasire, gukuraho ubwonko bwinyamaswa zipimwa.Ikigeretse kuri ibyo, ingaruka zo kwangiriza ingwate zasesenguwe ku nshuro ya mbere, ku bumenyi bwacu, kandi ibisubizo byerekana ko iyi lazeri ya MIR ifite ubushobozi buhebuje bwo gukuraho, bigatuma ishobora gusimburwa na elegitoroniki yubusa.
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