Products

DESCRIPTION

Basic Info

Specification	customized
Trademark	optu
Origin	Chengdu
HS Code	9001909090
Production Capacity	5000 Pieces / Year

Product Description

Descriptions:
a-BBO Crystal alpha -Barium Borate (α-BaB2O4) is a negative uniaxial crystal which has large birefringence over a broad transparent range of 190nm to 3500nm. α-BBO is widely used for fabrication of polarizers, polarizing beam displacers, phase retarders, birefringent plates, and time delay compensators especially those for UV and high power lasers.

 

Main applications:
1) High power Beam displacers for isolators.
2) High power Polarizer
3) Time delay compensators
Advantages:
4) High UV transmittance
5) Large birefringence
6) High damage threshold

Basice properties of YVO4 crystal:

Transparency Range	190-3500nm
Hygroscopic Susceptibility	Low
Density	3.85g/cm3
Mohs Hardness	4.5
Thermal Expansion Coefficients(/ºC)	9.3×10-6(C)9.5×10-6(A)
Damage Threshold	1GW
Refractive Indices	no=1.6776,ne=1.5534,at 532nmno=1.6579,ne=1.5379,at 1064nm
Sellmeier Equation(λ in μm)	no2=2.7471+0.01878/(λ2-0.01822)-0.01354λ2ne2=2.37153+0.01224/(λ2-0.01667)-0.01516λ2

 

OPTU offers a-BBO specifications:

Tolerance of cutting angle	△θ≤±0.25°,△φ≤±0.25°
Dimension Tolerance	±0.1mm
Flatness	λ/10 @ 632.8nm
Wavefront distortion	λ/[email protected] 632.8nm
Surface Quality	10/5 per MIL-O-13830B
Parallelism	10″
Perpendicularity	10′
Bevel/Chamfer	<[email protected]
Chips	<0.1mm
Clear Aperture	>95%
Coating	AR/HR (IAD, EB, IBS) coating upon customer's request
Damage Threshold	750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz
Quality Warranty Period	One year under proper use