Features:

Compound III-V semiconductors are sphalerite cubic crystal structure with melting point of 1238℃. Their propagation is isotropic. The material has the characteristics of low absorption system, high mechanical strength, high thermal cracking quality and high optical distortion quality. It has been successfully applied to 12KW CO2 laser for 8 hours continuous output. And no rupture occurred.

GaAs is used for optical windows, lenses, mirrors, prisms and optical blanks, plates, disks, sheets, slabs particularly for infrared applications.

GaAs - transparent in wide spectral range from yellow (visible) to far IR. GaAs material is a chemically inert, non-hygroscopic and highly pure product that is very effective in many optical applications due to its extremely low bulk losses, high resistance to thermal shock and stability in virtually all environments, easily machined. To obtain superior transmittance, GaAs crystals are grown by Chemical Vapor Deposition process . 

GaAs is polycrystalline material, demonstrates superior CO2 laser transmittance and is employed in the transmission optical components used in CO2 laser processing.

Material: GaAs

Coating band: 10.6μm

Diameter Tolerance：+0/-0.13mm

Thickness Tolerance：±0.25mm

Focus length Tolerance：<±2%

Centration:<3 arc minutes

Clear Aperture ：>90%

Surface Figure：λ/2per 1" Dia

Surface Quality ：40-20 Scratch and dig

AR/AR coating: R<0.5% per surface

Measurement for Focal Length:

Specification Confirmation:

Confirmation Method: Confirm the diameter of lens: Measure the diameter of lens with caliper or ruler. The common specification is 19 mm/20 mm/25 mm.

Confirm focal length of the lens: When the machine is working properly, the height from focus lens to the material surface is the focal length.

Separation measurement of Focus Length:

1. Firstly, Measure the height of the laser head exit to the material.

2. Measure the distance from the optical outlet to the focusing lens. The focal length is the sum of the two dimensions.

Common focal length: 50.8mm/63.5mm

Application：

CO2 laser focusing lens is widely used in laser processing. It is an indispensable part of laser engraving machine,laser marking machine and laser cutting machine.Focusing lens is the optical path accessory of CO2 laser. It is used to focus the beam after passing through the mirror, and ultimately to achieve the purpose of carving or cutting.

OEM or ODM are both available:

Our company has a large number of standard parts in stock, clients can order based on product size, technical parameters, and we accept customized processing of ZnSe products, incoming processing, ZnSe window, ZnSe lens, ZnSe prism, etc.

http://www.alsfox-optics.com/