STRION LASER Launches World’s First 4500W High-Brightness Pump Source with 23× Brightness Breakthrough

May 27, 2026

World Premiere | STRION LASER Launches 4500W High-Brightness Pump Source with 23× Brightness Breakthrough

Breaking Core Bottlenecks in High-Power Fiber Laser Technology

As high-power fiber laser technology continues expanding into advanced industrial manufacturing and high-performance laser equipment, the performance of the core pump source has become one of the key factors limiting further system upgrades.

Industrial applications now demand higher cutting and welding efficiency, better processing quality, and stronger long-term stability. At the same time, high-performance laser equipment requires improved mobility, environmental adaptability, and continuous high-power operation under extreme conditions.

These demands place extremely high requirements on:

Laser power output
Beam quality
Thermal stability
Reliability under continuous operation

At the center of all these requirements is the pump source itself.

To address these challenges, STRION LASER officially launched its new 1018nm 4500W high-brightness fiber pump source, combining:

Low quantum defect design
Advanced ASE suppression technology
High-efficiency back-reflection resistance
Optimized thermal management architecture

The result is a next-generation pump solution designed to support high-performance fiber laser systems across industrial and advanced laser applications.

01. Ultra-High Brightness with Compact 30kg Design

The new pump source adopts an advanced optical architecture and thermal management system, delivering:

4500W output power
105/125μm output fiber
Approximately 30kg lightweight structure

Conventional pump sources with similar fiber core diameter typically achieve only around 200W output. Compared with standard solutions, STRION LASER’s new product delivers nearly 23× higher brightness, significantly improving pump energy density for high-power, high-beam-quality fiber lasers.

The compact lightweight design also helps:

Simplify system integration
Improve platform flexibility
Reduce overall laser system size
Support scalable multi-pump configurations

This makes the solution highly suitable for advanced industrial laser systems and high-energy laser platforms.

02. 1018nm Low Quantum Defect Design Achieves 92% Optical Efficiency

Unlike traditional 976nm pump schemes, the new pump source adopts a 1018nm pumping wavelength, greatly reducing quantum defect loss.

Lower quantum defect means:

Reduced heat generation per unit power
Lower thermal load inside the laser system
Improved efficiency during high-power operation
Better long-term reliability

The system achieves up to 92% optical-to-optical efficiency, helping downstream high-power fiber lasers maintain stable operation within high-efficiency working ranges.

This significantly improves the overall reliability and thermal stability of the complete laser solution.

03. Advanced ASE Suppression Solves High-Power 1018nm Challenges

One of the major technical challenges of the 1018nm wavelength is its relatively low gain coefficient and sensitivity to parasitic spectral effects during high-power operation.

To overcome this limitation, STRION LASER developed an advanced spectral control solution capable of effectively suppressing Amplified Spontaneous Emission (ASE).

The system achieves:

Peak suppression ratio up to 50dB
Cleaner spectral output
Improved mode stability
Stable high-power operation

This technology successfully addresses common industry problems such as:

Rapid efficiency drop
Mode degradation
Spectral instability during high-power output

ensuring pure and stable laser performance.

04. High-Level Back Reflection Resistance for Reflective Materials

Processing highly reflective materials such as:

Copper
Aluminum
High-reflective alloys

often creates strong return light that can damage laser components and destabilize laser systems.

STRION LASER’s new pump source adopts an optimized anti-back-reflection design capable of withstanding return light at the 100W level without damaging core optical components.

This significantly improves:

Output stability
System reliability
Processing consistency
Maintenance cost control

especially in demanding industrial laser applications.

05. Full-Power Continuous Operation in Extreme Environments

By combining:

Low quantum defect architecture
ASE suppression
Full-chain thermal management
Stray light control technology

the new pump source supports continuous full-power operation under demanding industrial conditions.

The system is capable of stable operation in environments ranging from:
-40°C to 60°C, ensuring reliable all-weather performance for high-power laser systems.

Building the Core “Heart” of High-Power Laser Systems

High-brightness fiber pump sources are widely regarded as the “heart” of the laser industry chain. Their performance directly determines the upper limits of:

Fiber laser power
Beam quality
System reliability
Industrial application capability

With industry-leading performance across core specifications, engineering practicality, and cross-industry adaptability, the STRION LASER 4500W high-brightness fiber pump source provides a new foundation for advanced manufacturing and high-performance laser equipment.

The launch of this technology further strengthens independent core laser-source capability and supports the continued development of: