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Energetic picosecond 10.2-µm pulses eveliswe kwikristale ye-BGGSe ukwenzela imbewu engangqalanga ye-terawatt-class CO2 amplifiers
Sibonisa into esiyikholelwayo ukuba yindlela entsha yokwenza i-picosecond enamandla ye-10.2-μm isizukulwana se-pulse esekwe kumxube ongekho mda we-subnanosecond eyodwa-frequency ye-1338-nm pulses kunye ne-broadband 1540-nm i-chirped pulses kwi-BGGSe crystal elandelwa yi-compressor ye-grating ngenjongo. yembewu ye-CO2 amplifiers ephezulu.Amandla e-pulses ye-10.2-μm edlula i-60 μJ kunye ne-3.4%-rms ukuguquguquka kunokufunyanwa rhoqo.Umlinganiselo wexesha lokudubula okukodwa, olwenziwa yi Kerr polarization rotat...
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Imveliso ye-infrared esebenza kakhulu yobude obubude be-octave kunye ne-74% ye-quantum esebenzayo kwi-χ(2)
Kwiqonga le-waveguide elisekelwe kwi-ZnGeP2, i-octavesspaning spectrum egubungela i-5-11 μm iveliswa nge-optical parametric generation (OPG).Ukuphumelela kokuguqulwa kwe-quantum ye-74% njengerekhodi entsha kwiinkqubo ze-parametric ze-LWIR enye yokupasa enye iyafezekiswa.I-threshold energy ilinganiswa njenge ~ 616 pJ, iyancipha ngaphezu kwe-1-order yobukhulu xa kuthelekiswa nezo ze-MIR OPGs kwimidiya eninzi.Iqonga lethu le-prototype ye-micro-waveguide inokwandiswa ukuya kwezinye ii-χ(2) iikristale ze-birefringence kwaye iqalise ukuvela...
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Ukusebenza okungaphezulu kwe-60% Nd: YAG ye-laser ye-ceramic ecacileyo kunye nesiphumo esisezantsi sokulahleka
Apha, isiphumo selahleko yokuthomalalisa kunye nokwandiswa kokusebenza kwelaser ye-Nd:YAG iiseramikhi ezicacileyo zaphandwa.Ukusebenzisa i-0.6 kwi-% Nd: intonga ye-ceramic ye-YAG 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.Kuvavanyo lwe-laser ye-808 nm esecaleni, umndilili wamandla ophumayo we-44.9 W uphunyezwe ngoguqulo olusebenzayo lwe-optical-to-optical ye-26.4%, ephantse yafana ne...
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I-High Pulse Energy, Ububanzi obumxinwa yi-6.45 µm ukusuka kwi-Oscillator yeParametric ye-Optical kwi-BaGa4Se7 Crystal
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, sibala ngokuchanekileyo...
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I-43 W, i-7 ns ubude bexesha lokubetha kwe-pulse, izinga eliphezulu lokuphindaphinda i-langasite cavity-ilahle i-Ho: YAG laser kunye nokufaka kwayo kwi-infrared ye-ZGP OPOs
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-LGS crystal 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 kwi-mi...
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