Brushing Up On Super Polish

The Importance of Super Polish for Optical Components

As powerful as lasers are – or perhaps because of how powerful they are – they require precision development and maintenance to ensure the quality and integrity of their performance. The quality of the optical components – and specifically the surfaces of these components – can significantly impact the performance of the laser, as they must be very smooth to prevent light from scattering and reduce the power of the laser beam.

To maintain the integrity of the optical components, manufacturers like Blue Ridge Optics utilize a type of optical polishing called super polish. Super polishing uses specialized tools and techniques, resulting in an optical component with a surface virtually free of defects.

What is Super Polish?

Super polish is a type of optical polishing that produces surfaces with a roughness of less than 1 angstrom (Å) – equivalent to the width of a single atom! To achieve such a low roughness on optical components, super polishing requires a multi-step process that uses various polishing tools and techniques.

The first step in super polishing is to rough-polish the surface of the optical component using a coarse polishing tool, such as a diamond wheel. The rough-polishing step removes any major defects – like scratches and pits – from the surface. From there, the surface is chemically etched for material re-deposition removal, and further fine-polished using a finer and more precise polishing tool to remove the remaining defects from the surface and produce a surface that is as smooth as possible.

What Are The Benefits Of Using Super Polish Optical Components?

Light scatter must be minimized for a laser to be as powerful as possible. If the optical components of a laser contain any imperfections, the defects can cause light scatter and ultimately reduce the power of the beam and make it less coherent.

Super polishing the optical components creates a surface that’s nearly completely smooth, therefore reducing scatter. The smoother the surface of the optical component is, the more easily light will travel across it and the more powerful and coherent the beam will be. 

There are several specific benefits to using super polished optical components in lasers, including:

Increased Laser Power

Because super polished surfaces scatter less light, they can help increase the laser beam’s power, leading to faster cutting or welding speeds and improved accuracy.

Reduced Heat Buildup

When light is scattered, it can also cause heat buildup in the laser components. Super polished surfaces help to reduce this heat buildup, which can extend the lifetime of the laser components.

Improved Beam Quality

Super polished surfaces help to produce a more coherent laser beam. This means that the beam is more uniform in intensity and direction, which can improve the accuracy of the laser.

Where Are Super Polished Optical Components Used?

Super polished optical components are used in a wide variety of laser applications, including:

• Cutting and welding
• Material processing
• Laser surgery
• Optical communications
• Scientific research

Super Polish is a valuable technology that can significantly improve the performance of lasers. If you want to enhance your laser’s power, accuracy, and lifetime, consider using super polished optical components and contact Blue Ridge Optical today.