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BBO Crystal

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BBO Crystal
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Moq: 1 Unit

Country Of Origin: China

Lead Time: 4weeks

Terms Of Delivery: Fob Fuzhou

Terms Of Payment: Net 30 Days By T/t


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Product Features

 

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 213 nm. Conversion efficiencies of more than 70% for SHG, 60% for THG and 50% for 4HG, and 200 mW output at 213 nm (5HG) have been obtained, respectively. BBO Crystal has the following.

Advantages of BBO Crystal
Broad phase-matching range from 409.6 nm to 3500 nm 
Wide optical transmission from 190 nm to 3500 nm 
Large effective second-harmonic-generation (SHG) coefficient 
High damage threshold of 10 GW/cm2 for 100 ps pulse-width at 1064 nm 
Wide temperature-bandwidth of about 55℃ 
Good mechinical and physical properties 

01

20 years experience

02

High quality 

03

Competitive price

04

7days delivery

05

Japanese coating machine.

Product parameters

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 633nm

Surface Quality:

10/5 S/D

Parallelism:

< 20 arc seconds

Perpendicularity:

< 5 arc minutes

Wavefront Distortion:

<λ/8 at 632.8nm

Clear Aperture:

Central 95%

Chamfer:

0.15x45°

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 = 12.532Ä, c = 12.717Ä, Z = 6

Melting Point

1095 +/-5°C

Transition Temperature

925 +/-5°C

Optical Homogeneity

Dn ≈10-6/cm

Mohs Hardness

4.5

Density

3.85 g/cm3

Absorption Coefficient

< 0.1%/cm (at 1064 nm)

Hygroscopic Susceptibility

low

Resistivity

> 1011 ohm-cm

Relative Dielectric Constant

εT11/ε0: 6.7, εT33/ε0: 8.1 

Tan δ, < 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

d11 = 5.8 x d36(KDP)

d11 = 0.05 x d11, d22< 0.05 x d11

Electro-Optic Coefficients

g11 = 2.7 pm/V, g22, g31< 0.1 g11

Half-Wave Voltage

48 KV (at 1064 nm)

Damage Threshold

5 GW/cm2 (10 ns); 

at 1.064 mm 

10 GW/cm2 (1.3 ns)1 GW/cm2 (10 ns);

at 0.532 mm

7 GW/cm2 (250 ps)

Transparency Range

189 - 3500 nm

Refractive Indices 


at 1.0642 mm 

ne = 1.5425, no = 1.6551

at 0.5321 mm 

ne = 1.5555, no = 1.6749

at 0.2660 mm

ne = 1.6146, no = 1.7571

Therm-Optic Coefficients

dno/dT = - 9.3 x 10-6/℃

dne/dT = -16.6 x 10-6/℃


The crystals with different angle

cut for various applications are listed as follows

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.

1) Harmonic generations of Nd:YAG lasers:

1064nm SHG --> 532nm: 4x4x7mm Type I , θ=22.8°, φ=0°;
1064nm THG --> 355nm: 4x4x7mm Type I, θ=31.3°, φ=0°; Type II q=38.6°, φ=30°
1064nm 4HG --> 266nm: 4x4x7mm Type I, θ=47.6°, φ=0°;
1064nm 5HG --> 213nm: 4x4x7mm Type I, θ=51.1°, φ=0°; 

 

2) OPO and OPA pumped by harmonics of Nd:YAG lasers

532nm Pump --> 680-2600nm: 8x6x12mm Type I, θ=21°, φ=0°; 
355nm Pump --> 410-2600nm: 8x6x12mm Type I, θ=30°, φ=0°; Type II, q=37°, φ=30°;
266nm Pump --> 295-2600nm: 8x6x12mm Type I, θ=39°, φ=0°; 

3) Frequency doubling of dye lasers

 

670-530nm SHG --> 335-260nm: 8x4x7mm Type I, θ=40°, φ=0°;
600-440nm SHG --> 300-220nm: 8x4x7mm Type I, θ=55°, φ=0°;
444-410nm SHG --> 222-205nm: 8x4x7mm Type I, θ=80°, φ=0°; 

4) Harmonic generations of Ti:Sapphire lasers

700-1000nm SHG --> 350-500nm: 5x5x0.2mm Type I, θ=28°, φ=0°;
700-1000nm THG --> 240-330nm: 5x5x0.2mm Type I, θ=42°, φ=0°;
700-1000nm FHG --> 210-240nm: 5x5x0.2mm Type I, θ=66°, φ=0°; 

5) Frequency doubling and tripling of alexandrite lasers

720-800nm SHG --> 360-400nm: 6x4x7mm Type I, θ=31°, φ=0°;
720-800nm THG --> 240-265nm: 6x4x7mm Type I, θ=48°, φ=0°;

 

 

6) Intracavity SHG of Ar+ laser with brewster angle cut BBO Crystal 

514nm SHG --> 257nm: 4x4x7mm Type I, θ=51°, φ=0°, B-cut;
488nm SHG --> 244nm: 4x4x7mm Type I, θ=55°, φ=0°, B-cut;

 

 

 

Part No.

Size(mm)

Type

θ

φ

Coating

BBO001

4x4x7

I

22.8°

AR/AR@1064&532nm

BBO002

4x4x7

I

47.6°

AR/AR@532&266nm

BBO003

4x4x10

I

22.8°

AR/AR@1064&532nm

BBO004

4x4x10

I

47.6°

AR/AR@532&266nm

BBO005

5x5x2

I

29.2°

AR/AR@800&400nm

BBO006

5x5x1

I

29.2°

AR/AR@800&400nm

BBO007

5x5x0.3-0.5

I

29.2°

AR/AR@800&400nm

BBO008

5x5x0.1

I

29.2°

AR/AR@800&400nm


Product Message

 We welcome you to contact us for more information and look forward to working with you ! 

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