Nonlinear Optical Glass BBO Crystals for Laser

• Usage: Optical
• Type: Crystal
• Shape: Heteromorphism
• Material: Glass
• Lenses Color: Clear
• Certification: ISO9001
• Customized: Customized
• Transport Package: Special Protective Packing for Optical Products
• Specification: customized
• Trademark: YBT
• Origin: Shen Yang
• HS Code: 9001909090
• Production Capacity: 2000

Product Description

Barium Borate (BBO) Crystals

BBO crystal is a kind of nonlinear optical crystal with obvious comprehensive advantages and good performance, it has an extremely wide light transmission range, extremely low absorption coefficient, compared with other electro-optical modulation crystals, has a higher extinction ratio, a larger phase matching role, a higher light damage threshold, broadband temperature matching and excellent optical uniformity. It is beneficial to improve the stability of laser output power, especially for the triple frequency of Nd:YAG laser has a wide range of applications.

BBO Crystals Feature

• Broad phase-matchable second-harmonic-generation (SHG) range from 409.6nm to 3500nm

• Wide transmission region from 190nm to 3500nm

• Large effective SHG coefficient

• High damage threshold of 10 GW/cm² for 100 ps pulse-widths at 1064nm

• High optical homogeneity with Dn 10-6/cm2

• Wide temperature bandwidth of about 55° (for type I SHG 1064nm)

• Good mechanical and physical properties

BBO Crystals Have Been Applied to:

• Second, third, fourth and fifth harmonic generation of Nd:lasers

• Frequency-doubling, -tripling and -mixing of dye lasers

• Optical parametric amplifiers (OPA) and optical parametric oscillators (OPO)

• Frequency-doubling and -tripling of ultrashort pulse Ti:sapphire and dye lasers

• Frequency-doubling of Argon ions,Cu vapor and ruby lasers

• External intra-cavity SHG

Capabilities
Attribute	Commercial	High Precision
Dimensions	L=30.3mm to 25mm Size: Up to 15x15x15 mm^3
Wavefront Distortion	λ/8	λ/8
Orientation	±0.5°	±0.2°
End-Faces Configuration	Flat
Dimension Tolerance	±0.1mm	±0.01mm
Surface Quality	20-10 scratch and dig	10-5 scratch and dig
Flatness	λ/8	λ/8
Parallelism	20"	10"
Perpendicularity	15'	5'

 

Structure and physical properties of BBO crystals
Crystal structure	Trigonal system, space group R3c
Lattice parameter	a=b=12.532Å, c=12.717Å, Z=6
Fusing point	About 1095ºC
Phase change point	925±5ºC
Optical uniformity	δn ≈ 10^-6/cm
Mohs hardness	4
Density	3.85 g/cm^3
Absorption coefficient	<0.1%/cm(at 1064nm)
Specific heat	1.91J/cm^3 xK
Hygroscopicity	low
Coefficient of thermal expansion	α11=4 x 10^-6/K; α33=36x 10^-6/K
Thermal conductivity	1.2W/m/K(⊥c); 1.6W/m/K(//c)