LBO (Lithium Triborate - LiB3O5) tsopano ndiyogwiritsidwa ntchito kwambiri pa Second Harmonic Generation (SHG) ya 1064nm high power lasers (monga m'malo mwa KTP) ndi Sum Frequency Generation (SFG) ya 1064nm laser source kuti ikwaniritse kuwala kwa UV pa 355nm. .
LBO ndi gawo lofananira ndi ma SHG ndi THG a Nd:YAG ndi Nd:YLF lasers, pogwiritsa ntchito mtundu wa I kapena mtundu II.Kwa SHG pa kutentha kwa firiji, kufananitsa gawo la I kumatha kufikika ndipo kumakhala kokwanira kokwanira kwa SHG mu ndege zazikulu za XY ndi XZ muutali wotalikirapo kuchokera pa 551nm mpaka pafupifupi 2600nm.Kusinthasintha kwa SHG kopitilira 70% kwa kugunda kwa mtima ndi 30% kwa cw Nd:YAG lasers, komanso kusinthika kwa THG kupitilira 60% kwa kugunda kwa mtima Nd:YAG laser kwawonedwa.
LBO ndi kristalo wabwino kwambiri wa NLO wa OPO ndi OPA wokhala ndi kutalika kwa mafunde komanso mphamvu zambiri.OPO ndi OPA izi zomwe zimapopedwa ndi SHG ndi THG ya Nd:YAG laser ndi XeCl excimer laser pa 308nm zanenedwa.Makhalidwe apadera a mtundu wa I ndi mtundu wa II wofananira komanso NCPM amasiya chipinda chachikulu pakufufuza ndi kugwiritsa ntchito kwa LBO's OPO ndi OPA.
Ubwino:
• Kuwonekera kwakukulu kumachokera ku 160nm mpaka 2600nm;
• Homogeneity yapamwamba kwambiri (δn≈10-6 / cm) ndi kukhala wopanda kuphatikizidwa;
• Koyefiyenti ya SHG yothandiza kwambiri (pafupifupi kuwirikiza katatu kuposa KDP);
• Kuwonongeka kwakukulu;
• Wide kuvomereza ngodya ndi pang'ono kuyenda;
• Lembani I ndi mtundu wa II wosagwirizana ndi gawo lofunika kwambiri (NCPM) mumtundu waukulu wa wavelength;
• Spectral NCPM pafupi ndi 1300nm.
Mapulogalamu:
• Kutulutsa kopitilira 480mW pa 395nm kumapangidwa ndi pafupipafupi kuwirikiza kawiri Ti: laser ya safiro yotsekedwa (<2ps, 82MHz).Kutalika kwa mawonekedwe a 700-900nm kumakutidwa ndi kristalo wa 5x3x8mm3 LBO.
• Kutulutsa kobiriwira kopitilira 80W kumapezedwa ndi SHG ya Q-switched Nd:YAG laser mumtundu wa II 18mm LBO crystal yayitali.
• Kuwirikiza kawiri kwa diode yomwe imapopedwa Nd:YLF laser (>500μJ @ 1047nm,<7ns, 0-10KHz) imafikira kupitirira 40% kutembenuka bwino mu 9mm yaitali LBO crystal.
• Kutulutsa kwa VUV pa 187.7 nm kumapezedwa ndi sum-frequency generation.
• 2mJ / pulse diffraction-limited beam pa 355nm imapezeka ndi intracavity frequency katatu Q-switched Nd: YAG laser.
• Kusinthasintha kwapamwamba kwambiri ndi kutalika kwa kutalika kwa 540-1030nm kunapezedwa ndi OPO yoponyedwa pa 355nm.
• Mtundu wa I OPA wopopera pa 355nm ndi mphamvu yosinthira mphamvu ya mpope-to-signal ya 30% yanenedwa.
• Mtundu wa II NCPM OPO wopopedwa ndi XeCl excimer laser pa 308nm wakwanitsa kutembenuka kwa 16.5%, ndipo mafunde apakati osinthika amatha kupezeka ndi magwero osiyanasiyana opopa komanso kusintha kwa kutentha.
• Pogwiritsa ntchito njira ya NCPM, mtundu wa I OPA womwe umapopedwa ndi SHG ya laser ya Nd:YAG pa 532nm idawonedwanso kuti imagwira ntchito zosiyanasiyana kuchokera pa 750nm mpaka 1800nm posintha kutentha kuchokera pa 106.5℃ mpaka 148.5℃.
• Pogwiritsa ntchito mtundu wa II NCPM LBO monga optical parametric generator (OPG) ndi mtundu wa I critical phase-matched BBO monga OPA, mzere wopapatiza (0.15nm) ndi mphamvu yosinthira mphamvu ya kupopera mpaka chizindikiro (32.7%) inapezedwa ikapopedwa ndi 4.8mJ, 30ps laser pa 354.7nm.Wavelength ichunidwe kuyambira 482.6nm mpaka 415.9nm idaphimbidwa mwina ndikuwonjezera kutentha kwa LBO kapena kuzungulira BBO.
Basic katundu | |
Kapangidwe ka Crystal | Orthorhombic, Space group Pna21, Point group mm2 |
Lattice Parameter | a=8.4473Å,b=7.3788Å,c=5.1395Å,Z=2 |
Melting Point | Pafupifupi 834 ℃ |
Mohs Kuuma | 6 |
Kuchulukana | 2.47g/cm3 |
Zophatikiza Zowonjezera Zotentha | αx=10.8×10-5/K, αy=-8.8×10-5/K,αz=3.4×10-5/K |
Thermal Conductivity Coefficients | 3.5W/m/K |
Transparency Range | 160-2600nm |
SHG Phase Matchable Range | 551-2600nm (Mtundu I) 790-2150nm (Mtundu II) |
Therm-optic Coefficient (/℃, λ mu μm) | dnx/dT=-9.3X10-6 |
Mayamwidwe Coefficients | <0.1%/cm pa 1064nm <0.3%/cm pa 532nm |
Kuvomerezeka kwa Angle | 6.54mrad·cm (φ, Type I,1064 SHG) |
Kuvomereza Kutentha | 4.7℃·cm (Mtundu I, 1064 SHG) |
Kuvomerezeka kwa Spectral | 1.0nm·cm (Mtundu Woyamba, 1064 SHG) |
Walk-off Angle | 0.60° (Mtundu I 1064 SHG) |
Magawo aukadaulo | |
Dimension tolerance | (W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm) (L≥2.5mm)(W±0.1mm)x(H±0.1mm)x(L+0.1/-0.1) mm) (L<2.5mm) |
Bowo loyera | chapakati 90% ya diameterPalibe njira zobalalika zowoneka kapena malo akayang'aniridwa ndi 50mW wobiriwira laser |
Kusalala | zosakwana λ/8 @ 633nm |
Kutumiza kupotoza kwa wavefront | zosakwana λ/8 @ 633nm |
Chamfer | ≤0.2mm x 45° |
Chip | ≤0.1mm |
Dig/Dig | bwino kuposa 10/5 mpaka MIL-PRF-13830B |
Kufanana | bwino kuposa 20 arc masekondi |
Perpendicularity | ≤5 arc mphindi |
Kulekerera kwa ngodya | △θ≤0.25°, △φ≤0.25° |
Zowonongeka [GW/cm2] | >10 kwa 1064nm, TEM00, 10ns, 10HZ (yopukutidwa kokha)>1 ya 1064nm, TEM00, 10ns, 10HZ (AR-yokutidwa)>0.5 ya 532nm, TEM00, 10ns, 10HZ (yokutidwa ndi AR) |