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Lasers are ideal for industrial automation. Not only do they have the potential to increase productivity and repeatability, but they also possess key characteristics that facilitate automation. Examples include remote capabilities, low maintenance, almost no consumables and waste products, and minimal dust.

Fiber lasers also have a growing demand for industrial cleaning applications such as removing rust, paint, oxides, and other contaminants.

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If your application is laser cutting of metals, you’ll most likely need a high-power CW (continuous wave) fiber laser. For other materials like plastics and rubber, it can be one or the other.

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The main difference that determines the type of materials each laser can process is the wavelength. A fiber laser usually has a wavelength of 1,060 nm while CO2 lasers have wavelengths in the 10,600 nm range. In general, fiber lasers have many advantages over CO2 lasers.

Mach-Zehnder interferometer

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CO2 laser marking is ideal for a wide range of non-metallic materials including plastics, textiles, glass, acrylic, wood, and even stone. They are used in pharmaceutical and food packaging as well as the marking of PVC pipes, building materials, mobile communications gadgets, electrical appliances, integrated circuits, and electronic components.

Quantum mechanical lossless beam splitter su 2 symmetry and photon statistics

Dichroic beam splitter

The cost of a fiber laser system will greatly vary depending on your applications. Industrial fiber lasers systems for demanding environment like we do usually start at $40,000 and can go up to $1,000,000 for high-power laser-cutting machines. The power usually ranging from 20 W to 6,000 W will have the largest impact on price.

If you need to cut thicker materials, it’s best to go with CO2 lasers. CO2 lasers deliver faster initial piercing times, quicker straight-line cutting and a smoother surface finish when cutting materials above 5 mm.

Infrared light is the same as the light that we can see except that the wavelength is longer and outside the range that our eyes can sense.

The cost of CO2 lasers tends to be less than fiber lasers. The price for CO2 laser marking systems usually ranges between $35,000 and $80,000. Again, the power (which usually ranges between 20 W to 150 W) will influence the cost.

Laser power is one of the most important parameters to consider when choosing a laser, as it plays a key role in determining the effectiveness of laser processes. In laser material processing, laser power directly impacts the speed of processes like laser welding, laser cleaning, laser texturing, laser cutting, and laser marking.

Fiber lasers are best suited for high-contrast markings like metal annealing, etching, and engraving. They produce an extremely small focal diameter (resulting in intensity up to 100 times higher than a CO2 system), making them the ideal choice for permanent marking of serial numbers, barcodes, and data matrix on metals. Fiber lasers are widely used for product traceability (direct part marking) and identification applications.

Fiber lasers are generally better at cutting metals than CO2 lasers because the laser beam’s energy is absorbed more efficiently by the metal surface. They offer ≈50% lower operating costs, faster processing speeds, higher precision, and require less maintenance, making them a cost-effective and versatile choice for diverse applications.

Thorlabs beam splitter

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One big plus is fiber lasers are maintenance-free machines, and they have a long service life (our lasers have a minimum of 100,000 operating hours). They are also smaller than CO2 lasers. Plus due to the high electrical efficiency of fiber lasers, they use significantly less power than CO2 lasers, resulting in huge cost savings for cutting applications.

Mirbeamsplitter

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If you’re looking to mark metal, what you need to buy is a fiber laser. If you’re looking to mark organic materials like textiles, wood, or cardboard, a CO2 laser is the best choice.

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Unfortunately, CO2 lasers use significantly more power than fiber lasers, resulting in a higher cost of operation. For instance, a high-power CO2 laser and chiller will consume roughly 70 kW when operating on maximum power. A similarly powered fiber laser consumes approximately 18 kW.

Polarizing beam splitter

Laser ablation machines are increasingly used in the manufacturing and automotive industries. They are a popular option to meet short cycle times, automate processes, reduce operating costs, and add precision to ensure high-quality results.

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Although each laser does have its strengths and distinct use cases, CO2 is an older technology and fiber lasers are gaining market fast as the technology advances. With the speed benefits, almost half of the operating costs and three to four times greater throughput than CO2 lasers, the financial gains that can be got from using fiber lasers can be game changing.