Definition of 3D Printing Lasers
3D printing lasers are core components in 3D printing technology, using laser beams to scan object surfaces and capture their shape and position. The principle involves projecting a laser beam onto a surface and using optical sensors to record the reflected time and position, generating precise 3D coordinate data. These data points are then used to create 3D models or for measurement and analysis.
3D printing lasers have wide applications across industries such as manufacturing, construction, medical, art, and cultural heritage preservation. In manufacturing, they are used for inspecting part dimensions, shapes, and quality control. They form the essential technology behind modern 3D printing processes.
Classification of 3D Printing Lasers
1. Fiber Lasers
Fiber lasers use rare-earth-doped active fibers as the gain medium, typically pumped by semiconductor lasers. Their resonant cavities can include mirrors, fiber end-faces, fiber ring mirrors, or fiber gratings.
- By time-domain characteristics: Continuous-wave fiber lasers and pulsed fiber lasers.
- By cavity structure: Linear cavity, distributed-feedback fiber laser, and ring-cavity fiber laser.
- By gain fiber and pumping method: Single-clad (core-pumped) and double-clad (cladding-pumped) fiber lasers.
2. Semiconductor Lasers
Semiconductor lasers are compact, offer high response frequencies, broad spectral coverage, and low energy density requirements, making them ideal for 3D printing with photosensitive resins. Beam shaping further enhances processing precision and quality. They are also cost-effective compared to other laser types.
3. Nd:YAG Lasers
Nd:YAG lasers emit at 1.064 µm, much shorter than CO₂ lasers (10.6 µm), resulting in smaller spot sizes and higher marking resolution. This makes them suitable for precision 3D printing and high-resolution applications.
4. CO₂ Lasers
CO₂ lasers, usually TEA pulsed, focus through masks to engrave non-metallic materials such as wood, acrylic, leather, and paper. They are widely used for custom 3D printing, decorative crafts, and small-scale product personalization due to their precision and versatility.
3D Printing Laser Market Overview
The global 3D printing laser market is projected to reach approximately $2.5–3 billion by 2025, with a compound annual growth rate (CAGR) of 10–15% over the next decade, driven by increasing adoption in manufacturing, medical, and cultural applications.
3D Printing Laser Industry Chain
- Upstream: Laser components, including laser chips, pump sources, specialty fibers, crystal materials, optical and electronic components, mechanical parts, and laser control systems.
- Midstream: Laser types, including gas lasers, solid-state lasers, and semiconductor lasers. Fiber lasers have broad applicability.
- Downstream: Laser equipment, including laser cutting, marking, welding, cleaning, cladding, 3D printing, display, measurement, defense, and medical aesthetic applications.
Competitive Landscape in China
China’s 3D printing laser industry is highly concentrated, with the top four companies (CR4) holding 79.3% market share. Domestic firms are catching up with foreign companies, intensifying competition.
First-tier companies: IPG Photonics, Raycus Laser, Han’s Laser
Second-tier companies: JPT, Dier Laser, Bodor Electronics
Reasons for tier formation:
- First-tier: Early market entry, regional industrial clusters, scale advantages, complete R&D, production, and sales networks. IPG is a global fiber laser leader; Raycus dominates the domestic market with 40% share and high patent activity.
- Second-tier: Rapid growth supported by national policies, with differentiated technical advantages. Bodor Electronics leads in fiber laser cutting control systems with superior speed, precision, stability, and cutting quality, holding 60% market share.
Future Trends: Domestic companies will accelerate growth, with clear localization of laser technology and gradual withdrawal of foreign enterprises from the Chinese market.
