LiNbO3 (Lithium Niobate) – Nonlinear Crystal – Customized Products
LiNbO3 (Lithium Niobate) crystals are negative uniaxial crystals with a space group of R3c (C9) and a transmission range of 400~5000 nm. They also have the advantages of large effective nonlinear coefficients, easy growth, low price, stable physical and chemical properties, and are not susceptible to deliquescence. They are widely used as dual-frequency lasers with wavelengths greater than 1 mm and 1064 nm optical parametric oscillator (OPOs) pumps as well as quasi-phase-matching (QPM) devices.
Note:
$100 is a deposit, not the final price of the product. Please contact us for price if needed.
Features
Small volume
Not susceptible to deliquescence
High temperature stability
Large electro-optical coefficient
Wide range of transparency
High electro-optical efficiency
Low absorption loss
Low damage threshold
Easy to grow into large crystals
Stable mechanical and chemical properties
Physical and Optical Properties
Chemical Formula | LiNbO3 |
Crystal Structure | Trigonal |
Space Group | R3C |
Density | 4.64 g/cm3 |
Mohs Hardness | 5 |
Optical Uniformity | ~ 5 x 10-5 / cm |
Transparency range | 420 – 5200 nm |
Absorption Coefficient | ~ 0.1 % / cm @ 1064 nm |
Refractive Index @1064 nm | ne = 2.146, no = 2.220 @ 1300 nm |
ne = 2.156, no = 2.232 @ 1064 nm | |
ne = 2.203, no = 2.286 @ 632.8 nm | |
Sellmeier Equation(λ,μm) | no2 = 4.9048 + 0.11768 / (λ2 – 0.04750) – 0.027169λ2 |
ne2 = 4.5820 + 0.099169 / (λ2 – 0.04443) – 0.021950λ2 | |
Thermal Coefficient of Expansion @ 25°C | //a, 2.0 x 10-6 / K |
//c, 2.2 x 10-6 / K | |
Thermal Conductivity | ~ 5 W/m/K @ 25 °C |
Thermal-optical coefficient | dno/dT = -0.874 x 10-6 / K @ 1.4 µm |
dne/dT = 39.073 x 10-6 / K @ 1.4 µm |
Nonlinear Optical Properties
NLO Coefficient | d33 = 34.4 pm/V |
d31 = d15 = 5.95 pm/V | |
d22 = 3.07 pm/V | |
Effective NLO Coefficient | deff =5.7 pm/V or ~14.6 x d36 (KDP) for frequency doubling 1300 nm; |
deff =5.3 pm/V or ~13.6 x d36 (KDP) for OPO pumped @ 1064 nm; | |
deff =17.6 pm/V or ~45 x d36 (KDP) for quasi-phase-matched structure. | |
Electro-optic Coefficient | gT33 = 32 pm/V, gS33 = 31 pm/V, |
gT31 =10 pm/V, gS31=8.6 pm/V, | |
gT22 = 6.8 pm/V, gS22= 3.4 pm/V, | |
Half-wave Voltage, DC | |
E|| z,Light⊥z: | 3.03 KV |
E|| x or y,Light|| z: | 4.02 KV |
Damage Threshold | 100 MW/cm2 (10 ns, 1064nm) |
LiNbO3 optical waveguide specifications
Operating Wavelength Range | 1.525-1.605μm |
Extinction Ratio | <20dB |
Half-wave Voltage | <6V |
DC Bias Voltage | <8V |
Input Characteristic Impedance | 50Ω |
Light Reflex | ≤-50dB |
Maximum Input Power | 20dBm |
Maximum Input Optical Power | 10-100mW |
Storage Temperature | -40-85℃ |
Working Temperature | -40-70℃ |