BBO晶体

  • BBO Crystal Material
  • BBO Crystal Z-CUT with gold coating
  • BBO Crystal Package
  • BBO Crystal Package
  • BBO Crystal Workshop

BBO晶体是具有综合优良性能的非线性光学晶体。对于常规尺寸,晨征光电可支持10天快速交货。

BBO晶体描述:

BBO晶体(β-BaB2O4)在非线性光学晶体中,是一种综合优势明显,性能良好的晶体,它有着极宽的透光范围,较大的相匹配角,较高的抗光损伤阈值、宽带的温度匹配以及优良的光学均匀性。
产品应用
Nd:YAG和Nd:YLF激光的二、 三、 四、五倍频
染料激光的倍频,三倍频和混频
光学参量放大器(OPA)与光学参量振荡器(OPO)
Ti:Sappire和Alexandrite激光的二, 三, 四倍频
氩离子, 红宝石和Cu-vapor激光的倍频。
晨征光电可提供各种规格的Type 1 & Type 2 BBO晶体、镀金BBO晶体(3x3x20mm3, 4x4x20mm3)、Z-Cut BBO晶体。
我司能为您提供
最薄厚度为0.005mm的BBO晶体,1mm厚度的衬底
10天快速交货。
我们热忱欢迎各界朋友与我们联系、洽谈合作。
电子邮箱:sales@astarphotonics.com
移动电话: +86-186 5005 0680

BBO Crystals Specifications:

Flank Size(W*H): 1×1~25×25
Length(L): 0.005~25mm
Phase Matching Angle(θ,φ) Angel or according to customer request
Match Type: type I or type II
Angle Tolerance: Δθ<±0.2°; Δφ<±0.2°
Size Tolerance: (W ±0.1mm) x (H ±0.1mm) x (L +0.2mm/-0.1mm)
Flatness: <λ/8 @ 633nm
Smooth Finish: 20/10
Parallelism: <30″
Perpendicularity: <10′
Wavefront Distortion: <λ/8 @ 633nm
Clear Aperture: > 90%
Coating: P-coating or according to customer request

 

Physical and Optical Properties:

Crystal Structure trigonal, space group R3c
Cell Parameters a = b = 12.532A, c = 12.717A, Z = 6
Melting Point 1095 +/-5°C
Transition Temperature 925 +/-5°C
Optical Homogeneity D n ≈10 -6 /cm
Mohs Hardness 4.5
Density 3.85 g/cm 3
Absorption Coefficient < 0.1%/cm (at 1064 nm)
Hygroscopic Susceptibility low
Resistivity > 1011 ohm-cm
Relative Dielectric Constant e T 11 / e 0 : 6.7, e T 33 /e 0 : 8.1 Tan d , < 0.001
Thermal Expansion Coefficients(in the range of 25℃- 900℃) a, 4 x 10 -6 /K
c, 36 x 10 -6 /K
Thermal Conductivity ^ c, 1.2 W/m/K; ||c, 1.6 W/m/K
Phase-matchable SHG range 205nm-1750nm
NLO coefficients d 11 = 5.8 x d36(KDP) ,d 31 = 0.05 x d 11,d 22 < 0.05 x d 11
Electro-Optic Coefficients g 11 = 2.7 pm/V, g 22 , g 31 < 0.1 g 11
Damage Threshold
at 1.064 mm
at 0.532 mm
5 GW/cm 2 (10 ns);
10 GW/cm 2 (1.3 ns)1 GW/cm 2 (10 ns);
7 GW/cm 2 (250 ps)
Transparency Range 189 – 3500 nm
Refractive Indices
at 1.0642 μm
at 0.5321 μm
at 0.2660 μm
ne = 1.5425, no = 1.6551
ne = 1.5555, no = 1.6749
ne = 1.6146, no = 1.7571
Therm-Optic Coefficients dno /dT = – 9.3 x 10-6/℃
dne /dT = -16.6 x 10 -6 /℃
Sellmeier Equations: no2 (λ) = 2.7359+0.01878/(λ 2 -0.01822)-0.01354 λ 2
ne2 (λ) = 2.3753+0.01224/(λ 2 -0.01667)-0.01516 lλ2

BaB2O4 is a nonlinear optical crystal which combines a number of unique features. These features include wide transparency and phase matching ranges, large nonlinear coefficient, high damage threshold and excellent optical homogeneity. Therefore, BBO provides an attractive solution for various nonlinear optical applications.

BBO crystal is also an excellent electro-optic crystal for high power applications at the wavelength range from 200nm to 2500nm. It can be used for Q-Switching in a CW diode pumped Nd:YAG laser with average power>50W.

High Temperature form BBO ( a -BaB 2 O 4 ) is a negative uniaxial crystal. It has large birefringence over the broad transparent range from 189 nm to 3500 nm. The physical, chemical, thermal and optical properties of a-BBO crystal are similar to those of b-BBO. However, the nonlinear optical properties of a-BBO crystal is vanished due to the centric symmetry with its crystal structure. It is not recommended to use for NLO processes.