China
联系人 Bruce
rongcheng building 8# 201, Fuzhou, Fujian
The BBO Crystal is an efficient NLO crystal for the second, third and fourth harmonic generation of Nd:YAG lasers, and the best NLO crystal for the fifth harmonic generation at **3 nm. Conversion efficiencies of more than *0% for SHG, *0% for THG and *0% for 4HG, and **0 mW output at **3 nm (5HG) have been obtained, respectively. BBO Crystal has the following.
Advantages of BBO Crystal
Capabilities of BBO Crystal
| Aperture: | 2x2 ~ *5x*5mm |
| Lenght: | 0.*1 - *5mm |
| Cutting Angle of BBO Crystal qand f: | Determined by different kinds of homonic generartion |
| Phase matching type: | Type I or Type II |
| End Configuration: | Plano/Plano or Brewst/Brewst or Specified |
Specifications of BBO Crystal
| Angle tolerance: | Δθ< ± 0.5°; Δφ< ±0.5° |
| Dimensional Tolerance: | (W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/*0.1mm) |
| Flatness: | <λ/8 at **3nm |
| Surface Quality: | *0/5 S/D |
| Parallelism: | < *0 arc seconds |
| Perpendicularity: | < 5 arc minutes |
| Wavefront Distortion: | <λ/8 at **2.8nm |
| Clear Aperture: | Central *5% |
| Chamfer: | 0.*5x*5° |
| Coating: |
* Protective coating is required to prevent polished
surfaces from fogging. * Anti-reflective coating should be considered if low reflectivity is required. |
Properties of BBO Crystal:
| Crystal Structure | trigonal, space group R3c |
| Cell Parameters | a = b = *2.**2Ä, c = *2.**7Ä, Z = 6 |
| Melting Point | ***5 +/*5°C |
| Transition Temperature | **5 +/*5°C |
| Optical Homogeneity | Dn ≈***6/cm |
| Mohs Hardness | 4.5 |
| Density | 3.*5 g/cm3 |
| Absorption Coefficient | < 0.1%/cm (at ***4 nm) |
| Hygroscopic Susceptibility | low |
| Resistivity | > ***1 ohm-cm |
| Relative Dielectric Constant |
eT*1/e0: 6.7, eT*3/e0: 8.1 Tan d, < 0.**1 |
| Thermal Expansion Coefficients(in the range of *5℃- **0℃) |
a, 4 x ***6/K c, *6 x ***6/K |
| Thermal Conductivity | ^c, 1.2 W/m/K; ||c, 1.6 W/m/K |
| Phase-matchable SHG range | **5nm****0nm |
| NLO coefficients |
d*1 = 5.8 x d*6(KDP) d*1 = 0.*5 x d*1, d*2< 0.*5 x d*1 |
| Electro-Optic Coefficients | g*1 = 2.7 pm/V, g*2, g*1< 0.1 g*1 |
| Half-Wave Voltage | *8 KV (at ***4 nm) |
|
Damage Threshold at 1.**4 mm at 0.**2 mm |
5 GW/cm2 (*0 ns); *0 GW/cm2 (1.3 ns)1 GW/cm2 (*0 ns); 7 GW/cm2 (**0 ps) |
| Transparency Range | **9 - ***0 nm |
|
Refractive Indices at 1.***2 mm at 0.***1 mm at 0.***0 mm |
ne = 1.***5, no = 1.***1 ne = 1.***5, no = 1.***9 ne = 1.***6, no = 1.***1 |
| Therm-Optic Coefficients |
dno/dT = - 9.3 x ***6/℃ dne/dT = **6.6 x ***6/℃ |
Sellmeier Equations:
no2(l) = 2.***9*0.****8/(l**0.****2)*0.****4 l2
ne2(l) = 2.***3*0.****4/(l**0.****7)*0.****6 l2
BBO optical properties:
Transparence range: *******0nm
Second harmonic generation (SHG) range: *******0nm
Type I phase matching plane: X-Z plane, f=0°
Type I phase matching plane: X-Z plane, f=*0°
The crystals with different angle cut for various
applications are listed as follows:
1) Harmonic generations of Nd:YAG lasers:
***4nm SHG *-> **2nm: 4x4x7mm Type I
, q=*2.8°, f=0°;
***4nm THG *-> **5nm: 4x4x7mm Type I, q=*1.3°, f=0°;
Type II q=*8.6°, f=*0°
***4nm 4HG *-> **6nm: 4x4x7mm Type
I, q=*7.6°, f=0°;
***4nm 5HG *-> **3nm: 4x4x7mm Type
I, q=*1.1°, f=0°;
2) OPO and OPA pumped by harmonics of Nd:YAG
lasers
**2nm Pump *-> *******0nm: 8x6x*2mm Type
I, q=*1°, f=0°;
**5nm Pump *-> *******0nm: 8x6x*2mm Type I, q=*0°, f=0°;
Type II, q=*7°, f=*0°;
**6nm Pump *-> *******0nm: 8x6x*2mm Type
I, q=*9°, f=0°;
3) Frequency doubling of dye lasers
******0nm SHG *-> ******0nm: 8x4x7mm Type
I, q=*0°, f=0°;
******0nm SHG *-> ******0nm: 8x4x7mm Type
I, q=*5°, f=0°;
******0nm SHG *-> ******5nm: 8x4x7mm Type
I, q=*0°, f=0°;
4) Harmonic generations of Ti:Sapphire
lasers
*******0nm SHG *-> ******0nm: 5x5x0.2mm Type
I, q=*8°, f=0°;
*******0nm THG *-> ******0nm: 5x5x0.2mm Type
I, q=*2°, f=0°;
*******0nm FHG *-> ******0nm: 5x5x0.2mm Type
I, q=*6°, f=0°;
5) Frequency doubling and tripling of alexandrite
lasers
******0nm SHG *-> ******0nm: 6x4x7mm Type
I, q=*1°, f=0°;
******0nm THG *-> ******5nm: 6x4x7mm Type
I, q=*8°, f=0°;
6) Intracavity SHG of Ar+ laser with brewster angle cut
BBO Crystal
**4nm SHG *-> **7nm: 4x4x7mm Type I, q=*1°, f=0°,
B-cut;
**8nm SHG *-> **4nm: 4x4x7mm Type I, q=*5°, f=0°,
B-cut;
Mounting: In order to prevent crystals from
damaging or to be easily operated, CryLight provide three kinds
of mount of holder to install different dimension crystals.
Please contact our sales for more information.
| Part No. | Size(mm) | Type | q | f | Coating | ||||||||||||||||||||||
| BBO**1 | 4x4x7 | I | *2.8° | 0° | */*@******************** | ||||||||||||||||||||||
| BBO**2 | 4x4x7 | I | *7.6° | 0° |
AR/AR
相关产品 Sunxinda Photonics, Inc.相关产品Send a direct inquiry to this supplierGet Verified Buyers & SuppliersAvail Free Consultation |
