What is a Fiber Laser?

Posted by Naimor Metal Fabrication on Oct 10, 2023 2:48:00 PM


blue box with a photo of a fiber laser that has a lot of sparks coming off a sheet of metal being cut. Has the words: What is Fiber lasers? A fiber laser is a precision tool emitting straight, thin beams, perfect for cutting sheet metal.

A fiber laser is a type of solid-state laser that uses an optical fiber doped with rare-earth elements as its gain medium. The lasers are known for their precision, emitting straight and thin beams that offer exceptional beam quality and electrical efficiency.

Utilizing optical fibers, primarily composed of silica, fiber lasers can generate various wavelengths, making them ideal for a plethora of industrial processes, especially cutting. Their versatility extends from manufacturing sectors to medical applications.

Advantages of Fiber Lasers:

  • Higher Efficiency: Fiber lasers outperform other laser types like CO2 in terms of electrical efficiency, making them cost-effective for industrial applications.
  • Low Maintenance: With no moving parts or mirrors, fiber lasers are easier to maintain.
  • Longevity: They have a prolonged operational lifespan, offering value over extended periods.
  • Compact Design: Their inherent design allows them to be more compact, integrating seamlessly into various manufacturing setups.

Types of Fiber Lasers:

1. Mode of Operation:

  • Continuous beams (Continuous Wave Fiber Lasers): Emit energy consistently, producing a steady laser wave.
  • Pulsing beams: Emit beams at set intervals, enabling high peak powers.

2. Laser Power:

Represented in watts, this metric indicates the fiber laser's beam average power. A higher power rating means quicker energy generation.

3. Laser Source:

The gain medium in the fiber is typically doped with specific rare-earth elements. For instance, thulium-doped and erbium-doped fiber lasers generate different wavelengths suitable for varied applications.

4. Modes in Fiber Lasers:

  • Multi-mode Fiber Laser: With a larger core diameter (50-100 micrometers), these are apt for high-power tasks over precision.
  • Single-mode Fiber Laser: Featuring a core diameter of around 8 to 9 micrometers, they offer unmatched beam quality, ideal for precision tasks.

Applications of Fiber Lasers in Manufacturing:

  • Cutting: Fiber lasers excel in metal cutting, achieving high-speed operations with unparalleled precision.
  • Welding: Their precision and power make them suitable for spot or seam welding.
  • Marking and Engraving: They're frequently used for part identification, like marking serial numbers or barcodes.
  • Surface Treatment: Fiber lasers play a role in laser cleaning or material texturing.

Safety is paramount when operating high-powered lasers. Proper eyewear, controlled environments, and comprehensive training ensure risk-free operations.

Integration with Modern Manufacturing:

Fiber lasers are now being combined with CNC machinery, robotic systems, and other automated setups in modern manufacturing units, underlining their adaptability and indispensability.

The Future of Fiber Lasers:

Ongoing research promises even more efficient fiber lasers with broader applications. Their evolving nature suggests an even more integral role in future manufacturing setups.

Economic and Environmental Considerations:

Besides their technical prowess, fiber lasers promise cost savings via reduced energy consumption, lower maintenance, and prolonged operational life. Furthermore, their energy efficiency positions them as an environmentally friendly choice in manufacturing.

In conclusion, fiber lasers, with their myriad advantages and applications, are revolutionizing modern manufacturing, making them an invaluable asset in both current and future industrial landscapes.

Why NaiMor?

At NaiMor we pride ourselves on our quick response times and speedy production rates for all our parts. We also employ operators who have a deep knowledge base and skills to match.


Here at NaiMor, we use an Amada LGC 4020 AJ 6kW Fiber Laser.

NaiMor guarantees top tier work, all done in house. See our blog post for further information on our fiber laser capabilities!


Check out our instagram for many more photos and videos of our work!



Tags: fiber laser