LiNbO3 Crystal
LiNbO3 (Lithium Niobate) siv lead ua yog cov khoom siv ntau yam uas koom nrog cov khoom ntawm piezoelectric, ferroelectric, pyroelectric, nonlinear, electro-optical, photoelastic, thiab lwm yam. LiNbO3 muaj zoo thermal stability thiab tshuaj lom neeg ruaj khov.
Raws li ib qho ntawm cov kev ua kom pom tseeb tshaj plaws ntawm cov khoom siv kho qhov muag tsis zoo, LiNbO3 yog haum rau ntau yam zaus hloov ua ntaub ntawv thov. Piv txwv li, nws tau siv dav siv ua ntau zaus tsis sib xws rau wavelength> 1 μm thiab kho qhov muag parametric oscillators (OPOs) pumped ntawm 1064 nm li zoo li quasi-theem-sib phim (QPM) cov khoom. Vim nws loj EO thiab AO coefficients, LiNbO3 siv lead ua kuj tseem siv rau theem modulators, waveguide substrate, nto acoustic wave wafers, thiab Q-hloov ntawm Nd: YAG, Nd: YLF thiab Ti-Sapphire lasers.
LiNbO3 tuaj yeem doped nrog ntau yam, xws li Er, Pr, Mg, Fe, thiab lwm yam, uas muab cov khoom siv tshwj xeeb. Piv txwv, qhov pib puas tsuaj ntawm MgO: LiNbO3 yog ntau tshaj ob npaug uas cov ntshiab LiNbO3Cov.
Tiv tauj peb rau qhov kev daws teeb meem zoo tshaj plaws rau koj daim ntawv thov ntawm LiNbO3 muaju.
WISOPTIC Peev Xwm -LiNbO3
• Ntau qhov ntau thiab tsawg ntawm cov tiav ua tiav rau cov ntawv thov sib txawv.
• Tswjhwm zoo nruj
• Tus me nyuam kev ntseeg tau
• Tus nqi sib tw heev
• Cov kev txhawb nqa kev qhia
WISOPTIC Cov Lus Qhia Tshwj Xeeb Cov Lus Qhia* - LiNbO3
| Qhov Kev Zam Txim Siab | ± 0.1 hli |
| Lub Siab kam | 0.5 ° |
| Lub Hauv Paus | <λ / 8 @ 632,8 nm |
| Deg Zoo | <20/10 [S / D] |
| Parallelism | <20 ” |
| Kev Txiav Txim | ≤ 5 ' |
| Tshaj | ≤ 0.2 hli @ 45 ° |
| Kis Tau Hloov Wavefront Kev Ntxeev Siab | <λ / 4 @ 632,8 nm |
| Ntshiab Aperture | > 90% hauv nruab nrab cheeb tsam |
| Kev Txheej Txheem | AR txheej: R <0.2% @ 1064 nm, R <0.5% @ 532 nm |
| * Cov khoom lag luam nrog cov tshwj xeeb xav tau thaum thov. | |
Qhov zoo ntawm MgO: LiNbO3 piv nrog LiNbO3
• Txo ntau ntau dua ob zaug (SHG) efficiency rau pulsed Nd: YAG (65%) thiab CW Nd: YAG (45%)
• Cov kev ua tau zoo dua hauv cov ntawv thov ntawm OPO, OPA, QPM doublers thiab sib xyaw waveguide
• Ntau dua photorefractive puas muaj kev cuam tshuam
Thawj Daim Ntawv Thov - LiNbO3
• Kev tso tawm tas li rau cov yoj yoj> 1 μm
• Optical parametric oscillators (OPO) pumped ntawm 1064 nm
• Quasi-phase-matched (QPM) cov khoom siv
• Q-keyboards (rau Nd: YAG, Nd: YLF thiab Ti-Sapphire lasers)
• Theem modulators, waveguide substrate, hla acoustic wave wafers
Lub Cev Khoom Siv - LiNbO3
| Siv cov mis tshuaj | LiNbO3 |
| Crystal qauv | Tsis tseem ceeb |
| Taw tes pab pawg | 3m |
| Chaw pab pawg | R3c |
| Lattice constants | a= 5.148 Å, c= 13.863 Å, Z = 6 |
| Qhov ceev | 4.628 g / cm3 |
| Melting taw tes | 1255 ° C |
| Curie kub | 1140 ° C |
| Mohs hardness | 5 |
| Thermal conductivity | 38 W / (m · K) @ 25 ° C |
| Thermal expansion coefficients | 2.0 × 10-6/ K (// a), 2.2 × 10-6/ K (// c) |
| Hygroscopicity | Tsis-hygroscopic |
Khoom kho qhov muag - LiNbO3
| Hloov pauv cheeb tsam (ntawm “0” transmittance level) |
400-5500 nm | ||||
| Cov nqe lus xis siab | 1300 nm | 1064 nm | 632,8 nm | ||
|
ne= 2.146 no= 2.220 |
ne= 2.156 no= 2.232 |
ne= 2.203 no= 2.286 |
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| Thermal optic coefficients | dno/dT = -0.874 × 10-6/ K @ 1.4 μm dne/dT = 39.073 × 10-6/ K @ 1.4 μm |
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Cov kab co raws tsis haum |
326 nm |
1064 nm |
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| = 2.0 / cm | = 0.001 ~ 0.004 / cm | ||||
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NLO coefficients |
d33 = 34.4 teev tsaus ntuj / V, d22 = 3.07 teev tsaus ntuj / V, |
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| Electro-optic coefficients | γT33= 32 teev tsaus ntuj / V, γQha33= 31 teev tsaus ntuj / V, γT31= 10 teev tsaus ntuj / V, γQha31= 8.6 teev tsaus ntuj / V, γT22= 6.8 teev tsaus ntuj / V, γQha22= 3.4 teev tsaus ntuj / V |
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| Ib nrab yoj voltage (DC) | Hluav taws xob teb // z, teeb ⊥ z | 3.03 kV | |||
| Hluav taws xob teb // x lossis y, teeb // z | 4.02 kV | ||||
| Kev puas tsuaj pib | 100 MW / cm2 @ 1064nm, 10 ns | ||||
