Tekinoroji ye laser ye ultrafast wafer inobudirira zvikuru

Wafer inoshanda zvakanyanya uye inokurumidza kushandatekinoroji yelaser
Simba gurulasers dzinokurumidza kwazvoanoshandiswa zvakanyanya mukugadzira zvinhu zvepamusoro, ruzivo, microelectronics, biomedicine, kudzivirira nyika uye minda yemauto, uye tsvakiridzo yesainzi yakakosha kukurudzira hunyanzvi hwesainzi netekinoroji hwenyika uye budiriro yepamusoro.sisitimu yelaserNekubatsira kwayo kwesimba repakati nepakati, simba guru rekurova kwemoyo uye mhando yepamusoro yemwaranzi, inodiwa zvikuru mufizikisi yeattosecond, kugadzirisa zvinhu nezvimwe zvinhu, uye yave ichinyanya kutariswa nenyika pasi rese.
Munguva pfupi yapfuura, chikwata chekutsvagisa muChina chakashandisa tekinoroji yewafer yakagadzirwa nega uye tekinoroji yekuwedzera simba kuti iite basa repamusoro (kugadzikana kwakanyanya, simba rakawanda, mhando yepamusoro yemwaranzi, kushanda zvakanaka) wafer inokurumidza zvikuru.laserkubuda. Kuburikidza nekugadzirwa kwenzvimbo ye regeneration amplifier uye kudzora tembiricha yepamusoro uye kugadzikana kwe disc crystal mu cavity, kuburitswa kwe laser kwe single pulse energy >300 μJ, pulse width <7 ps, avhareji yesimba >150 W inowanikwa, uye kushanda kwepamusoro kwe light-to-light kunogona kusvika 61%, inovawo kushanda kwepamusoro kwe optical conversion efficiency kwakataurwa kusvika parizvino. Beam quality factor M2<1.06@150W, 8h stability RMS<0.33%, kubudirira uku kunoratidza kufambira mberi kwakakosha mu high-performance wafer laser, iyo ichapa mikana yakawanda ye high-power ultrafast laser applications.

Kudzokorora kwakawanda, sisitimu yekuwedzera simba rekugadzira wafer ine simba guru
Maumbirwo ewafer laser amplifier anoratidzwa muMufananidzo 1. Inosanganisira sosi yembeu yefiber, musoro welaser wakatetepa uye cavity ye regenerative amplifier. Oscillator ye ytterbium-doped fiber ine simba repakati re15 mW, wavelength yepakati ye1030 nm, upamhi hwepulse ye7.1 ps uye repetition rate ye30 MHz yakashandiswa sesosi yembeu. Musoro wewafer laser unoshandisa kristalo yeYb: YAG yakagadzirwa kumba ine dhayamita ye8.8 mm uye ukobvu hwe150 µm uye sisitimu yekupomba ye48-stroke. Sosi yepombi inoshandisa zero-phonon line LD ine 969 nm lock wavelength, iyo inoderedza quantum defect kusvika 5.8%. Chimiro chakasiyana chekutonhodza chinogona kutonhodza wafer crystal uye kuve nechokwadi chekugadzikana kwe regenerative cavity. Regenerative amplifier cavity ine Pockels cells (PC), Thin Film Polarizers (TFP), Quarter-Wave Plates (QWP) uye high-stability resonator. Zvinobvisa chiedza zvinoshandiswa kudzivirira chiedza chakakura kuti chisakuvadze tsime rembeu. Chimiro chezvinobvisa chiedza chinosanganisira TFP1, Rotator neHalf-Wave Plates (HWP) chinoshandiswa kuparadzanisa mbeu dzinopinda uye pulses dzakakura. Kupwanya kwembeu kunopinda mukamuri rekuvandudza kupwanya kwembeu kuburikidza neTFP2. Makristaro eBarium metaborate (BBO), PC, neQWP zvinobatana kugadzira optical switch inoshandisa voltage yakakwira nguva nenguva kuPC kuti ibate kupwanya kwembeu nekuiparadzira kumashure nekumashure mugomba. Kupwanya kunodiwa kunotenderera mugomba uye kunowedzerwa zvinobudirira panguva yekupararira kwerwendo rwekutenderera nekugadzirisa nguva yekumanikidzwa kwebhokisi zvakanaka.
Amplifier yekuvandudza wafer inoratidza kushanda zvakanaka uye ichaita basa rakakosha muminda yekugadzira yepamusoro-soro yakadai se extreme ultraviolet lithography, attosecond pump source, 3C electronics, uye mota itsva dzesimba. Panguva imwe chete, tekinoroji yewafer laser inotarisirwa kushandiswa kune makuru ane simba guru.midziyo yelaser, ichipa nzira itsva yekuedza yekuumbwa uye kuona zvinhu zvakanaka pachikero chenanoscale space uye femtosecond time scale. Chinangwa chekuzadzisa zvinodiwa zvikuru zvenyika, timu yepurojekiti icharamba ichitarisa pakuvandudza tekinoroji yelaser, kuwedzera kugadzirira makristaro elaser ane simba guru, uye kuvandudza zvinobudirira kugona kwekutsvaga nekugadzira kwezvishandiso zvelaser munzvimbo dzeruzivo, simba, michina yepamusoro nezvimwewo.