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¡¡Products / Non-Linear Crystals

BIBO

 
¡¡¡¡BIBO (BiB3O6) is a newly developed Nonlinear Optical Crystal. It has advanced  characteristic for the NLO application. 
1.Broad transparency range from 286nm to 2500nm;
2.High optical homogeneity (dn»10-6/cm) and being free of inclusion;
3.Large effective SHG coefficient (about 9 times that of KDP);Non-linear efficiency is (about 2 times that BBO);
4.High damage threshold;
5.Wide temperature-bandwidth;Inertness with respect to moisture;
Applications
1.SHG and THG for middle and high power Nd:lasers at 1064nm;
2.SHG and THG of high power Nd: lasers at 1342nm & 1319nm for red and blue laser;
3.SHG for the Nd: Lasers at 914nm & 946nm for blue laser;
4.Optical Parametric Amplifiers (OPA) and Oscillators (OPO) application;
5.Over 2.8W cw 473nm blue output was achieved with type I BIBO for frequency doubling;
6.W cw Nd:YAG pumped by LD.Nonlinear Optical Properties Compare

Crystals

Length
(mm)

Deff
(pm/V)

Walk-off
(mrad)

Output Power(W)

Conv.  Eff.

BIBO

10.4

3.3

40.7

2.8

63%

LBO

10

0.81

11.3

1.52

33%

BBO

8

2.0

60.3
2.1
47%
1.Structural and Physical Properties

Crystal Structure

Monoclinic, point group 2

Lattice parameters

a = 7.116 Å, b = 4.993 Å, c = 6.508 Å
Z =2, b=105.5868¡ã

Melting point (congruent)

726¡ã C

Hardness

5 - 5.5 mohs

Specific heat

0.5 J/gm-K at 330 K

Thermal expansion

(4.8E-5[X], 4.4E-6[Y],   -2.69E-5[Z])

Density

5.033 g/cm^3

Long term stability

Insensitive to moisture

2.Optical properties

Transmission range

286- 2500 nm

NLO coefficients: d12=d14=2.3, d25=d36=2.4, d11=2.53, d13=-1.3, d35=-0.9, d26=2.8 pm/V
Refractive Indices

539.75 nm

n1 = 1.9620,

n2 = 1.7874,

n3 = 1.8190

1079.5 nm

n1 = 1.9166,

n2 = 1.7569

n3 = 1.7835

Sellmeier Equations
 

n12=3.6545+0.0511/(l2-0.0371)-0.0226l2
n22=3.0740+0.0323/(l2-0.0316)-0.01337l2
n32=3.1685+0.0373/(l2-0.0346)-0.01750l2

3.BIBO's Main Specification

Transmitting wavefront distortion

<Lambda/8@633nm

Dimension tolerance

¡À0.1mm

Flatness

< Lambda/8@633nm

Perpendicularity

<5 arc minutes

Parallelism

<15 arc seconds

Suface Quality

10/5 Scratch/Dig Per Mil-O-13830A

Angle tolerance  
Theta<¡À 0.5¡ã,phi<¡À0.5¡ã

Coating

AR R<0.2%@946&473nm ect.,